Inlex binder1 by Chris Gorvin

Surface Finishing Technology

LOCKING

Threadlocking and Sealing

Coating availalbe from Inlex Locking Ltd Wood Lane, Fordhouses, Wolverhampton WV10 8HN tel: 01902 397300 fax: 01902 785372 enquiries@anochrome-group.co.uk www.anochrome.com

Coatings available from Anocote Limited

Czech Republic branch o.s. Areál CKD c.p. 626 PO Box 61 50101 Hradec Králové Czech Republic Email: sales@anocote.cz Tel: +420 495 221 331 Fax: +420 495 221 334

None Reactive Thread Sealants & Lockers LOCKING

PRE-APPLIED SEALANTS FOR IMPROVED SEALING PERFORMANCE ON MALE THREADED COMPONENTS

PRODUCT

Micro-seal

PRECOTE®

PRODUCT NUMBER

204

PTFE

SEALANT

SEALANT WITH

AQUEOUS

WITH PE

PE ACRYLIC

COLOUR

GREEN

WHITE

SEALING CAPACITY BAR

>150

>50

LOW

TEMPERATURE RANGE OC

-50 +150

-60 +180

REUSABILITY

YES

INSTALLATION TORQUE

LOW

SPECIFICATIONS

SEE NOTE ‘A/B’

SEE NOTE ‘B’

SEE NOTE ‘C’

PATCH STYLE LENGTH - STD

1 DIA

ON PART LIFE AMBIENT TEMP

>2 YEARS

>1YEAR

>1 YEAR

MATERIAL

REACTIVE /NONE REACTIVE COMMENTS

HYDROCARBON

NONE

REACTIVE

HARD

ELASTIC

SOFT

ELASTIC

The materials shown here are only a small section of the These material are able to meet the requirments of; Note ‘A’

GM 9985490 FORD WSK M4G328 -A1 PERKINS PMS P.1.15

Note ‘B’

FORD WSS-M18 P12-A WX201 PERKINS PMS P.1.04 LRES 22FP03 FORD ESE M4G208-A2

Note’C’

FORD SKM 7C 955 2A ESB M 7 C 53 A2

range that Inlex Locking offers For further information please contact one of our application engineers who will be able to offer advice on the correct solution.

Material will meet and exceed other specifications. Information presented in this data sheet is considered reliable, but conditions and methods of use, which are beyond our control, may modify results. Before these product are used, the user should confirm their suitability. We cannot accept liability for any loss, injury or damage which may result from its use. We do not warranty the accuracy or completeness of any such information whether orally or in writing. We reserve the right at anytime and without notice to update or improve products and processes and our information concerning the same. Precote is a registered trade mark of omniTECHNIK Mikroverkapselungs GmbH

P31.1.5

Inlex Locking Ltd

Wood Lane, Fordhouses, Wolverhampton WV10 8HN tel: 01902 397300 fax: 01902 785372 enquiries@anochrome-group.co.uk www.anochrome.co.uk

None Reactive Thread Sealants & Lockers LOCKING

FEATURE

CHARACTERISTICS

Micro-seal 204

Micro-seal204 is a water-based environmentally friendly PTFE pre-applied sealant. Micro-seal204 has excellent

(Green)

performance qualities providing instant sealing upon installation. Micro-seal204 can be applied to ferrous and non-ferrous metallic thread forms and has an operating temperature range of -50°C to +150°C.Components can be re-adjusted after installation, whilst maintaining their sealing ability. Microseal®204 inhibits corrosion of mating parts due to its sealing action. Disassembly is therefore improved compared to other conventional methods.

Precote ® 4

Precote®4 is a film-forming dispersion with non-reactive mineral solids for coating threaded parts. It is a non-

(White)

toxic and safe precoating for threaded parts like screws, studs, plugs and pipe threads, sealing against gases and liquids. Precote®4 has a more elastic structure with better recovery properties

Precote ® 5

Precote®5 is a film-forming dispersion with non-reactive mineral solids for coating threaded parts. It is a non-

(White)

toxic and safe precoating for threaded parts like screws, studs, plugs and pipe threads, sealing against gases and liquids. A special inhibitor avoids corrosion on brass fittings.

Precote ® 15

Precote® 15 is a non-reactive film forming dispersion with mineral solids predominately designed to coat

(White)

threaded parts. The dried film is very elastic and is non hardening colour white so clearly visible when applied. This environmentally friendly green water based material, is hygienic, physiologically harmless in application and end use. Can be used in Automotive sealing applications, both in threads and underhead. Seals against air - 50˚to 180˚C, Engine and gear oil – upto 150˚ ATM – upto 150˚ Brake Fluid – up to 150˚ Antifreeze – up to 120˚ Petrol and Diesel – Room temperature. Can be used for rivets, plugs, studs and pipe fittings and is approved for drinking water applications (DVGW certificated). Din 751-2. Can also be applied to plastic components.

Information presented in this data sheet is considered reliable, but conditions and methods of use, which are beyond our control, may modify results. Before these product are used, the user should confirm their suitability. We cannot accept liability for any loss, injury or damage which may result from its use. We do not warranty the accuracy or completeness of any such information whether orally or in writing. We reserve the right at anytime and without notice to update or improve products and processes and our information concerning the same. Precote is a registered trade mark of omniTECHNIK Mikroverkapselungs GmbH

P31.2.5

Inlex Locking Ltd

Wood Lane, Fordhouses, Wolverhampton WV10 8HN tel: 01902 397300 fax: 01902 785372 enquiries@anochrome-group.co.uk www.anochrome.co.uk

LOCKING

Pre-Applied Adhesives for Thread Locking Advantages • • • • • • • • • •

High breakaway torque Low installation torque Fast curing Plate and patch service Easy identification Not effected by most oils and solvents Working temperatures -56°C to+200°C Controlled patch position Replaces liquid adhesives Replaces mechanical locking devices

The Micro Encapsulated Adhesive Principle

Inlex Locking Ltd® is the European market leader for pre-applied locking and sealing solutions for threaded components. We are constantly working closely with our material suppliers to develop new products and processes, which offer innovative jointing solutions to meet ever changing customer requirements. Our pre-applied adhesive products contain micro-encapsulated components of the adhesive material, which are coated onto the screw threads, forming a brightly coloured identifiable, dry to touch, ready to use, high performance adhesive coating. The thread coated with the pre-applied adhesive develops the desired locking and sealing properties, when compression or shear stress ruptures the micro-capsules upon assembly of the screw into the corresponding mating component. The adhesive components are released and within a short time, the compound with the threads becoming locked,bonded together and forming a reliable seal.

Industry Approvals Nut tolerance zone

Bolt

Bolt coating

Bolt

A.The Pre-applied process consists of applying the micro-encapsulated adhesive onto a defined area of the male thread surface.

The Inlex Locking Ltd®pre-applied adhesive products are approved to a wide range of industry standards including: DIN 267 Part: 27IFI 125/525 BS 7795 : 1995 Ford (WX200 & WX201) GM 6175M Perkins Engines Jaguar/LandRover STJLR.60.5020. X200 and many more....

B.The adhesive coating is stable, dry to touch,ready to use. C.Upon assembly into the mating threaded component the capsules rupture, developing a secure locking of the two components with a high strength adhesive bond.

R28.2.7

Inlex Locking Ltd

Wood Lane, Fordhouses, Wolverhampton WV10 8HN tel: 01902 397300 fax: 01902 785372 enquiries@anochrome-group.co.uk www.anochrome.com

PRE-PRODUCTION SAMPLES ARE EVALUATED AND THEN PROCESSED FREE OF CHARGE

ACRYLIC

Scotch-grip®

DARK BLUE

2353 Scotch-grip®

ORANGE

2510

1-2 Pitch Lead

EPOXY

4-6

1-2

RESIN

Pitches

Pitch Lead

EPOXY

4-6

1-2

RESIN

Pitches

Pitch Lead

°C in g

Te m p

Li fe

Pa tc h da

da 4-6 Pitches

pa ci ty oe (M ffi ci 10 en ) to fF Fu ric ll tio C ur n e Ti m e Si (h ze rs Ra ) ng e

YELLOW

1-2 Pitch Lead

Precote®30

4-6 Pitches

Se al

ACRYLIC

pe ra tin g

TURQUOISE

1-2 Pitch Lead

Precote®85

4-6 Pitches

St or ag e

ACRYLIC

St an

PINK

St an

e Ty p

Precote®80

ol C

Pr od

Pa tc h

LOCKING

Le ad

Le ng th

Pre-Applied Adhesives

4 -Years

-50 +170

>200 Bar

0.25/0.28

M4 - M30

4 -Years

-50 +170

>200 Bar

01/0.15

M4 - M30

4 -Years

-50 +150

>200 Bar

0.1/0.15

M4 - M30

4 -Years

-60 +116

>200 Bar

0.16/0.18

M4 - M30

4 -Years

-40+ 200*

>200 Bar

0.26/0.28

M4 - M30

406

Lt BLUE

*Designed for applications where the service temperature might reach continuously up to 149°C or intermittently up to 200°C. Note - Precote 30 is a medium strength product, which is approximately 60% of the strength of Precote 80 or 85

Table:extract from BS7795:1995 Thread size

Breakaway Torque Nm Maximum

Minimum

M6 x 1

M8 x 1.25

M10 x 1.5

M12 x 1.75

M14 x 2

130

M16 x 2

160

• We currently process a range of headed components, studs, plugs and similar parts. • We can apply our coating to ferrous or non-ferrous materials (Steel, Aluminium, Brass or Stainless Steel and some plastic materials). • With our integral plating facilities we offer a complete one-stopshop plate and patch service. • This is a general guide to the products we currently process. • We are able to process other components subject to evaluation. • Reuse of micro-encapsulated adhesives is not recommended.

Note: Adhesive performance to BS 7795 - 1995 standard is based on Precote 80 & 85, and Scotchgrip 2353 & 2510

Recommendations Hole Preparation In all cases the female thread of the mating components should have the lead thread de-burred or countersunk to avoid damage to the patch material upon assembly.

Thread Preparation To obtain optimum adhesive performance both male and female threads should be in accordance with class 6g/6H (metric) or class 2 a/b(unified).

Finishes Pre-applied adhesives can be applied to most popular plated finishes, as well as polymer and organic coatings. Epoxy products should be avoided with Aluminium as the resultant reaction can cause assembly problems.

Scotch-grip® 2353 Uses a hardening product which is hydroscopic, and therefore contact with moisture (which may exhibit a whitening effect) prior to assembly should be avoided.

R28.2.7

Inlex Locking Ltd

Wood Lane, Fordhouses, Wolverhampton WV10 8HN tel: 01902 397300 fax: 01902 785372 enquiries@anochrome-group.co.uk www.anochrome.com

Rimlex Non-Reactive Underhead Seals ®-

LOCKING

PRE-APPLIED SEALANTS FOR IMPROVED SEALING PERFORMANCE ON MALE THREADED COMPONENTS

PRODUCT

RIMLEX ®

PRECOTE®

PRECOTE ®

PRODUCT NUMBER

600Y

620B

15C (Combi)

200

MATERIAL

EPOXY

POLYURETHANE

SEALANT WITH PE

ACRYLIC

COLOUR

YELLOW

BLUE

WHITE

BLUE

SEALING CAPACITY BAR

>150

>50

>150

TEMPERATURE RANGE OC

-50 +150

-50 +150*

-60 +180

-40 +100

REUSABILITY

See Note

TORSIONAL* OR RIVET/GASKET

TORSIONAL

BOTH

BEAD FORM

CONCAVE

SLUMP

CONCAVE

2PK REACTION

HEAT CURE

RT VULCANISATION

HEAT CURE

PRODUCT

DYMAX

RIMLEX ®

PRODUCT NUMBER

488

EV001

EV002

LS1

UT325

MATERIAL

EPOXY

SILICON

POLYURETHANE

SILICON

RTV SILICON

COLOUR

CLEAR

TRANSLUCENT

WHITE OR BLACK

SEALING CAPACITY BAR

>150

>50

TEMPERATURE RANGE OC

-60 +180

-50 +200

-50 +150

-50 +300

REUSABILITY

See Note

TORSIONAL* OR RIVET/GASKET

BOTH

GASKET

RIVET/GASKET

BOTH

BEAD FORM

CONVEX

LOW SLUMP

CONCAVE

CURE METHOD

RT VULCANISATION

ACETOXY

CURE METHOD

FORM-IN-PLACE SEALANTS FOR USE AS SEALS AND GASKETS

WHITE GREY OR BLACK

BRICK RED

Note - for torsional applications an additional torque modifying topcoat is normally recommended. *120°C for continuous usage, 150°C possible for intermittent use subject to testing. Reusability is subject to application, specific face/joint design and compression stops may be required.

O34.1.7

Inlex Locking Ltd

Wood Lane, Fordhouses, Wolverhampton WV10 8HN tel: 01902 397300 fax: 01902 785372 enquiries@anochrome-group.co.uk www.anochrome.com

Rimlex® -Non-Reactive Underhead Seals LOCKING

Material Types Rimlex®600Y is slightly harder than other Rimlex® materials and has re-use capabilities and exceptional chemical resistance. This product is specifically for use in ‘O’ ring (SEA J2244-1 ISO 6149-1) mating hole forms.

Rimlex®620B has been designed for use on fastener applications. The product has re-use capabilities and is resistant to many automotive oils,antifreeze and transmission fluids

Precote® 200 This material is slightly softer than Rimlex 620B due

Rimlex Applications ®

to a lower cross link density, this results in better compression and compression set characteristics and is better suited as an environmental seal.

Rimlex® is a non-reactive peripheral seal, which can be applied to the underhead bearing surfaces of bespoke fasteners, or other suitable components. The Rimlex® products are flexible, organic based materials. used to replaces copper, aluminium and other more expensive sealing washers. When components are assembled, the material is forced into any gaps between mating surfaces to form a robust seal. Different grades of the material exhibit various properties, including resistance to fuel, oil, brake fluid and antifreeze. Some varieties exhibit excellent re-use capabilities, and even when under torsional pressure, will seal after 12 or more applications.

DYMAX 488 This product is single use UV cure material with excellent chemical resistance together with improved temperature resistance.

Precote® 15 is particularly suited for powertrain applications and can be applied to underhead bearing surfaces and threaded components. The material has excellent chemical resistance and is approved for drinking water and gas applications (DVGW certificated). Din 751-2.

Rimlex® Ultratemp UT325 has been specifically designed for high temperature applications. The material is a high temperature silicon (up to 300°C) with excellent gap filling properties.

The interface geometry of mating components is critical for the correct functioning and reuse of the range of Rimlex® seals. The mating hole, as a minimum should be burr free, chamfered and/or engineered to ensure Rimlex®material is not stripped or cut away during installation. In most cases an SAE J2244-1 (ISO 6149-1) hole form is suitable. Rimlex product reuse should be qualified with application trials. Rimlex® products can be readily applied to most corrosion protection finishes and non-ferrous components. They are especially suitable for sealing rivets, rivet/clench nuts and similar flanged tubes for use on enclosures, tanks, body in white and final trim applications. Specialist equipment within The Anochrome Group allows underhead and thread coating on the same component.

O34.2.7

Inlex Locking Ltd

Wood Lane, Fordhouses, Wolverhampton WV10 8HN tel: 01902 397300 fax: 01902 785372 enquiries@anochrome-group.co.uk www.anochrome.com

Rimlex® -Non-Reactive Underhead Seals LOCKING

Form in place Form in place Rimlex®gaskets can be applied to a wide variety of substrates including plastic, aluminium, brass, glass, perspex and diecast parts. Components with complex shapes can be dispensed including electronic and PCB enclosures. The Rimlex®gasket is applied using computer controlled multi axis dispensing equipment. The equipment can produce complex shaped gaskets on a variety of components. Gaskets can be a variety of heights, shapes and sizes as a gap filling self-levelling bead or with a low slump convex profile. Visual and dimensional checks can be made using either laser or visual measurement equipment. The height and positional accuracy can be measured automatically at a number of points on the bead profile to an accuracy of 0.001mm.

Rimlex®LS1has been specifically designed as a quick polymerizing compound that remains permanently flexible and waterproof after curing. Rimlex®LS1 has important low slump characteristics that allows its use as a gap filling compound. Ideal as a lip gasket for enclosures and large weather assemblies. The material is available in white, grey or black grades and all types can be over painted and are resistant to most automotive fluids.

Rimlex®EV001 and Rimlex®EV002 Both these soft (30 shore A) translucent environmental seals exhibit good non-slump characteristics. The EV001 material will go to 200°C and the EV002 to 150°C.Rimlex ® EV003 This environmental seal is a soft (30 shore A) self-levelling material available in black or white.

O34.3.7

Inlex Locking Ltd

Wood Lane, Fordhouses, Wolverhampton WV10 8HN tel: 01902 397300 fax: 01902 785372 enquiries@anochrome-group.co.uk www.anochrome.com

LOCKING

Nylon Locking Patch Advantages Blue or Red with other bespoke colours to order High temperature Orange patches with 260Â°C capability are available Re-useable Anti-vibrational Variable patch length and position Eliminates secondary locking features such as nuts, washers, etc. Automatically locks in any position Plate and Patch service available Resistant to chemicals including alcohol, petroleum, oil, kerosene, diesel fuel and hydraulic fluids

At Inlex we offer Europeâ&#x20AC;&#x2122;s widest range of pre-applied locking and sealing solutions, eliminating the need for secondary locking devices, hand-applied liquid adhesives, or sealing tapes. The Inlex Nylon anti-vibration locking patch, when applied is permanently fused onto the screw thread of the parent component, and increases the prevailing removal torque, allowing the screw to be locked in any position upon assembly.

Inlex 180 Nylon anti-vibration locking patch Inlex180 anti-vibration locking patch, is a coloured nylon 11 feature permanently fused to the screw thread. This process provides excellent vibration resistance and torque performance for all applications requiring controlled loading and re-usability. Inlex nylon anti-vibration locking patch, is effective, whether or not the fastener is fully seated, making it ideal for applications where subsequent adjustment is required.

Inlex 360 Nylon anti-vibration locking patch

The Inlex Principle

Inlex 360 nylon anti-vibration locking patch, gives full circumference coverage (completely around the thread) and is suitable for applications requiring a fully re-usable high pressure seal against liquid or gas.

(1) Nylon fills axial tolerances

(2) Metal to metal contact

A. The Inlex process consists of fusing the Nylon 11 material onto a defined area of the male thread surface. B. Upon installation into the female threaded component, the nylon material is compressed filling the axial tolerances between the threads (1). C. The Inlex process creates a strong metal-to-metal radial loading on the flanks of the mating thread forms (2), which provides the locking action.

Industry Approvals Our Inlex Nylon anti-vibrational locking patch products are approved to a wide range of industry standards including:DIN 267 part 28 BS 7715:1994 IFI 124 & 524 General Motors GM6189P Ford WA970 Jaguar/LandRover.STJLR.60.5020.A970 and many more.. .

Inlex Locking Ltd

T58.1.2

Wood Lane, Fordhouses, Wolverhampton WV10 8HN tel: 01902 397300 fax: 01902 785372 enquiries@anochrome-group.co.uk www.anochrome.com

Nylon Locking Patch

Product Guide Pr

u od

ct Co

th ng e L

pe Ty

Standard Blue /Red Nylon High Temp Orange

Nylon

i ti nd

ch ch at at P P h d d tc ar ar th Pa nd ead nd eng ax a a M St L St L

40mm

4-6 Pitch

40mm

4-6 Pitch

1-2 Pitch Lead 1-2 Pitch Lead

@ o fe g ) L i nt C in 0 C at p ( ge bi e r a pe m or m St A O Te

i ty ac p C a atch g i n 00 P l a Se 3 6

LOCKING

-U Re

li bi sa

ty Si

n Ra

Indefinite

-56 + 150*

>15 BAR (M10 Thread)

M1-M30

Indefinite

-56 + 260

>15 BAR (M10 Thread)

M1-M30

*120째C for continuous usage, 150째C possible for intermittent use subject to testing. We currently process a range of Headed Components, Studs, Plugs and similar size parts. W e can apply our coating to ferrous or non-ferrous materials (steel, aluminium, stainless steel or brass). We can offer a complete one-stop-shop plate and patch service. This is a general guide to the products we currently process. Other colours are available on request.

Standard Typical Torque Characteristics to BS7715:1994 Prevailing Torque

T hr ead Si z es ISO Metric 1.6 2 2.5 3 3.5 4 5 6 8 10 12 14 16 20 22 24

1st Installation

1st Removal

Nm (max)

Nm (min)

0.10 0.20 0.40 0.60 0.90 1.20 2.30 3.0 10.0 14.0 21.0 30.0 40.0 60.0 75.0 90.0

0.01 0.02 0.05 0.14 0.22 0.26 0.36 0.45 0.9 1.80 2.6 3.60 5.00 8.0 10.50 13.0

5th Removal

Nm (min) 0.004 0.01 0.03 0.06 0.11 0.16 0.23 0.30 0.58 1.10 1.50 2.30 3.40 5.50 7.00 8.50

Torque Performance can be varied to suit specific application requirements. These figures may vary according to material specification and are intended as a guide. Torque characteristics for imperial thread sizes available upon request.

Recommendations Hole Preparation

PRE-PRODUCTION SAMPLES ARE EVALUATED AND THEN PROCESSED FREE OF CHARGE

Finishes

In all cases the female thread of the mating components should have the lead thread de-burred or countersunk to avoid damage to the patch material.

Inlex can be applied to most popular plated finishes, as well as polymer and organic coatings.

Thread Preparation

Parts manufactured from non-ferrous material should be supplied free from any surface contaminants. Variations in material structure can effect heating capability of the part during processing, which may result in torque variation.

To obtain optimum patch performance both male and female threads should be in accordance with class 6g/6H (metric) or class 2 a/b (unified). High installation speeds can create galling of the threads affecting product performance.

T58.2.2

Customer free issue components Inlex Locking Ltd

Wood Lane, Fordhouses, Wolverhampton WV10 8HN tel: 01902 397300 fax: 01902 785372 enquiries@anochrome-group.co.uk www.anochrome.com

Information presented in this data sheet is considered reliable, but conditions and methods of use, which are beyond our control, may modify results. Before these product are used, the user should We cannot accept liability for any loss, injury or damage which may result from its use. We do not warranty the accuracy or completeness of any such information whether orally or in writing. We reserve the right at anytime and without notice to update or improve products and processes and our information concerning the same.

Thread Lubricants and Waxes

PRODUCT

TORQUE TIP®

PRODUCT NUMBER

MATERIAL

PTFE

Wax

COLOUR

YELLOW

Lt BLUE

REUSABILITY

YES

SPECIFICATIONS

SEE NOTE ‘A/B’

SEE NOTE ‘B’

SEE NOTE ‘C’

PATCH STYLE - STD LENGTH

0.12 - 0.17

0.25 - 0.28

0.1 TO 0.12

>2 YEARS

TORQUE TENSION RELATIONSHIP ON PART LIFT AMBIENT TEMP

NYTORQ®

WAXTIP 402

These material are able to meet the requirments of; Note’A’

FORD WSS-M21P17-A4 (XD) FORD WSS-M21P19-A8 & A9’

Note’B’

FORD WSS-M21P17-A4 (XD)

Note’C

FORD WSS-M9G20-B3 GM 9986167

The materials shown here are only a small section of the range that Inlex Locking offers. For further information please contact one of our application engineers who will be able to offer advice on the correct solution.

FEATURE

CHARACTERISTICS

Torque Tip 28®

A dry, highly lubricative water based film developed specially for thread forming screws. Non-toxic, can be coloured for idetification.

Nytoq®

NYTORQ is a film-forming synthetic wax lubricant to coat threaded parts. It is a physiologically harmless precoating to reduce friction and prevents cold welding and can be used in a wide variety of industrial and manufacturing applications. It is also specially designed for self-taping threads. The dried film is dry-to-touch.

WaxTip 402

402 Wax is a microcrystalline wax formulated specifically to reduce drive torques in self-tapping screw applications. 402 is a solid wax compound that contains no VOCs or HAPs, making it the most environmentally friendly torque-friction reducer available. The material isdesigned to fgvluoresces under UV light for ease of identification in automated processing systems

Information presented in this data sheet is considered reliable, but conditions and methods of use, which are beyond our control, may modify results. Before these product are used, the user should confirm their suitability. We cannot accept liability for any loss, injury or damage which may result from its use. We do not warranty the accuracy or completeness of any such information whether orally or in writing. We reserve the right at anytime and without notice to update or improve products and processes and our information concerning the same. Nytorq is a registered trade mark of Nylok LLC Torque- Tip 28 is a registered trade mark of Inlex Locking ltd

S29.1.2

Inlex Locking Ltd

Wood Lane, Fordhouses, Wolverhampton WV10 8HN tel: 01902 397300 fax: 01902 785372 enquiries@anochrome-group.co.uk www.anochrome.co.uk

Torque Tension Control Coating Lubricity or Torque Tension As efforts are made to use a fastener at its ultimate capacity, to economise

Coefficient of friction between bearing surfaces

on fastener size, strength and numbers used, the lubricity of the fastener

µb = 2 Tb DbF

assumes a great importance.

The aim of any fastener engineer using a fastener in a normal tensile joint

Where Tb is torque to overcome bearing surface friction (Nm).

would be to be able to tighten similar fasteners to give a uniform known Coefficient of friction between threads

tension.

µth = Tth - P F π 0.577 d2

The factors that control this are: 1.Accuracy of applying and monitoring the tightening torque. 2.Underhead

dimensions,

surface

roughness

and

lubricity

performance of coating. 3.Conditions (and coating) of the surface which is being turned against the bearing surface i.e the surface under the head of a bolt or nut when tightened

T this torque required to overcome thread friction and induce tension F (kN). It should be noted that in a typical joint the energy is divided approximately

4.The thread condition and coating lubricity.

Overcoming thread friction µth 40%

5.The mating thread condition and coating.

Overcoming bearing friction µb 50%

The main criteria is that the variables outlined above are acceptably controlled. The specifications for the manufacture and mechanical performance of fasteners will usually control the fastener variability satisfactorily, e.g.ISO 68, ISO 724, ISO 898, ISO 965, ISO 6157 and the coating lubricity can be controlled by process control and testing according to test requirements such as BS 7371 Pt. 2 or ISO 16047.

Producing clamp force F

10%

Changes in friction have a large effect on clamping force To monitor coating lubrication performance, it is customary and usually considered only necessary to consider µtot. Sophisticated equipment is required to measure thread or bearing torque requirements separately which is useful to assess the effects of varying bearing surface or thread contact materials. Anochrome Group has purchased this type

Lubricity of Coatings

This can be expressed in two ways, the Coefficient of Friction µ and the Torque Coefficient (K factor). The figures are not the same and it is important that they are not confused with each other. The coefficient of friction takes into account many more parameters to give a more accurate result.

of equipment and has assessed the individual coefficients of friction for popular material combinations which are quoted in the table below. This can be used as a guide to compute tightening torques, but it should be considered that variations may occur. Changes to any of the parameters, or contamination of contacting surfaces, can significantly alter characteristics.

Types of Coating

Torque= Torque (Nm) =T Coefficient K

Induced load (kN) x Nominal diameter (mm)

F.d

It is seen that this uses the dimension d, so the validity of K-factor is

Lubricated coatings fall into two categories:

limited to fasteners of normal diameter d, so calculations using K can

1.Integral lubricated coatings- where the lubricant is part of the

only accurately be used with the same dimension fastener.

coating and is found distributed throughout the coating.

The coefficient of friction µ is usually derived from the work of Kellermann 2.Surface lubrication- in this case, the lubricity is given by an

and Klein1

impregnated surface coating or a wax or oil.

µtot

T/F - P/2π 0.577d2 + 0.5 Db

In some cases, to give the required performance, both types of coatings are required, type 2 on top of type 1.

Where

T is the tightening torque (Nm)

The integral lubricated type is usually regarded as the better as it is

F is the clamp force (kN)

easier to apply, does not require an extra coat, cannot be omitted,and its

P is the pitch of the thread (mm)

performance is more consistent in that on reuse, the coating will still be

d2 is basic pitch diameter of thread (mm)

Db is effective diameter of bearing surface under nut or bolt

head (mm)

able to supply lubrication to the joint. Most zinc flake coatings have a lubricated top coat that means that

This is µtot which is the sum of the effective coefficient of friction on the

part of the coating has integral lubrication properties an exception is

bearing surface (µb) (e.g. under the head of a bolt or the rubbing surface

Geomet®500 which has a lubricant throughout the coating.

of a nut if the nut is turned) and in the thread (µth). These figures will vary as contact materials change.

Electroplated coatings and some other coatings are not normally supplied with an integral lubricant so surface lubricants are used.

G19.1.2

Torque Tension Control Performance Enhancing Lubricants / Waxes These coatings are often more economical than the resin bonded dry film

If necessary, these coatings can be applied to local areas of components.

lubricants (see below) and can be applied to a large number of standard finishes. Typical lubricants/waxes that can be applied are:

In most cases these coatings will enhance corrosion resistance if applied

•Rustarest - Oil

as a top coat and also have corrosion resistance properties in their own

•Gleitmo

right.

•Torque N Tension 11 or 15 •A3 Wax

These coatings can be applied in bulk, on parts up to 0.5 kg. wt.or 150

•Wax 47/60

mm long. Longer parts can be spray coated or selectively coated on the

In a number of cases, A3 wax has been used to give the lubricity

thread or underhead feature.

performance of cadmium under high pressure applications. Also similar waxes have been used to ensure that self drilling screws can give their

Re-use of Fasteners

desired performance. In some instances, e.g. to dampen noise when inserting certain types of thread locking screw, the wax can be applied only to a portion of the thread of a fastener. (See pages Thread waxes).

Interest is being shown in the torque tension performance of fasteners when they are re-used and our equipment has been used to investigate

Corrosion Resistance The oils applied, though they have a disadvantage of being slightly wet, have the attraction that their mobility can enhance the corrosion resistance, particularly when components are damaged in assembly. This is not usually the case with waxes because as they are dry films, they can sometimes suffer damage, although Anochrome Group does not use any standard materials that will detract from the corrosion resistance of the original coating.

the change in performance during 10 re-usecycles. In these cases, the integral lubricants show a vast improvement over the “surface” type of torque tension control (See charts below). If required, please contact us for further information on the torque tension performance of coatings.

Torque Tension Perfomance Data Data for guidance is given on the following graphs, but it should be

Dry Film Lubricants The Engineer’s demand for lower closely controlled friction coefficients, with no extruded material, has produced a requirement to eliminate molybdenum bearing greases and oils. The dry films used to replace these having the advantage of being tenaciously bonded to the surface giving improved reproducible performance over wide variations of

noted that the actual component that is coated, its dimensions and the coating dimensions of mating parts can have a significant effect on the actual tightening performance. Most figures have been obtained from testing parts that conform to the ISO specification for coarse series of bolts and in many cases M10 flange fasteners have been used.

temperature and under very adverse conditions. A major use of these materials is on stainless steel, to stop galling. Dry film lubricants usually consist of a resin, used to bond a dry lubricant on to the surface of a component. The lubricants used are, in the main,P.T.F.E., Molybdenum Disulphide or Graphite, either individually or combined, to impart any of the following attributes. •Low coefficients of friction. •Good performance under high surface pressure conditions. •High temperature, low temperature performance. •Reusability. A number of these lubricants supplied as standard by the Anochrome Group, which include Torque Tip 28®(TT28), Molykote 321®, Molydag709®, Molydal 1870®and other lubricants and blends according

Inlex Locking Ltd

to the requirement of the part. The typical applications of these products are on: •Turbo charger bolts.•Carburettor parts.•Lock parts.•Hinge pins.•Seat belt bolts and parts.•Brake and clutch pivots.•Bolts with special locking features.•High

temperature

nuts.•Clutch

locking

slides.•Gearbox input shafts.•Stainless steel threads.

G19.2.1

rings.•Machine

Wood Lane, Fordhouses, Wolverhampton WV10 8HN tel: 01902 397300 fax: 01902 785372 enquiries@anochrome-group.co.uk www.anochrome.co.uk

Torque Tension Conrol Typical Torque Tension Specification Requirements

BAND A Specifications that fall within Band A

Ave. µ = .11

µ= .08

VW TL 246 OPEL GME 00255 MERCEDES BMW GS 90010 GM 3359 HONDA D2008-5

25.3 kN M10 x 1.5p Bolt µ= .14

Materials DELTAPROTEKT®+VH 301GZ GEOMET®321 +VL

Min/Max Torque Range

BAND B µ= .12

Specifications that fall within Band B Ave. µ = .15

FORD WZ100 ( µ= .12 - .18) (S438, S447, S448) FORD WZ101 ( µ= .11 - .17)(S439, S440, S442) RENAULT 01-71-002/- -Q PEUGEOT/CITROEN B152230

µ= .18

25.3 kN M10 x 1.5p Bolt

Materials DELTAPROTEKT®+ VH 302GZ GEOMET®321 GEOMET®500 GEOBLACK® MAGNI 565 & 560

Min/Max Torque Range

BAND C µ= .16

Specifications that fall within Band C

Ave. µ = .23

µ= .30

25.3 kN M10 x 1.5p Bolt

HONDA FORD S4 Materials UNLUBRICATED ZINC UNCOATED UNLUBRICATED BOLT ZINC NICKEL

Min/Max Torque Range

100

Inlex Locking Ltd

G19.3.2

Wood Lane, Fordhouses, Wolverhampton WV10 8HN tel: 01902 397300 fax: 01902 785372 enquiries@anochrome-group.co.uk www.anochrome.co.uk

Torque Tension Conrol Integral Lubricant. Typical - Zinc Flake Re-use 30000.0

Clamp Force (N)

25000.0

20000.0

15000.0

10000.0

5000.0

0.0 0.0

25.0

50.0

75.0

Input Torque (Nm)

Surface Lubricant. Typical -Zinc Electroplate + lube Re-use 30000.0

Clamp Force (N)

25000.0

20000.0

15000.0

10000.0

5000.0

0.0 0.0

25.0

50.0

75.0

100.0

Input Torque (Nm)

Inlex Locking Ltd

G19.4.1

Wood Lane, Fordhouses, Wolverhampton WV10 8HN tel: 01902 397300 fax: 01902 785372 enquiries@anochrome-group.co.uk www.anochrome.co.uk

Torque Tension Control Typical Performance Data for Coatings with Standard Lubrication TABLE1. CLAMPING FORCES & APPLIED TORQUE-BOLTS AND NUTS (ISO METRIC FASTENERS) CLAMPING FORCE kN

APPLIED TORQUE Nm

PROPERTY CLASS

PC 8.8 / 8

PC 9.8 / 9

PC 10.9 / 10

PC 12.9 / 12

8.8/8

9/8/9

10/9/10

12.9/12

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

2.2

3.1

3.7

1.1

1.6

1.4

2.2

1.7

2.6

3.8

5.5

6.4

2.5

3.7

5.3

4.0

5.7

6.2

6.9

8.9

10.4

5.0

7.4

5.6

8.2

7.2

106

8.0

11.6

8.7

9.8

12.5

14.6

8.4

12.4

9.5

14.0

12.1

17.8

13.5

19.5

15.9

17.8

22.8

26.6

M10

25.3

28.3

36.1

42.2

M12

36.7

41.1

52.5

61.4

105

118

102

150

114

164

M14

56.1

71.6

112

168

127

187

161

240

182

265

M16

68.2

76.5

97.5

114

175

260

198

292

250

371

282

406

M18

86.2

119

140

255

372

353

513

390

560

M20

110

152

178

355

520

491

718

550

795

M22

136

189

220

500

705

675

989

750

1080

M24

159

220

256

620

928

857

1283

950

1370

NOTE: The Clamping Forces specified are equal to 75% of the proof load of the property classes of bolts as given in ISO 898/1.The Applied Torque figures are test requirements and are not recommended for use as assembly data.Thread locking and sealing features generally perform to this table. Please contact us for confirmation.This table complies with BS7371 Pt 2. Ford WZ100. Testing to Ford WZ101 is also available.Testing to International Standards such as ISO 16047 is recommended in the absence of customer standards.

Inlex Locking Ltd

Wood Lane, Fordhouses, Wolverhampton WV10 8HN tel: 01902 397300 fax: 01902 785372 enquiries@anochrome-group.co.uk www.anochrome.co.uk

G19.5.1