SRIRAJ GROUP Bolts, Nuts, Screws, Washers, Wire Mesh etc….
SCREWS
SCREWS • Corrosion Resistant • Rusting fasteners retain moisture in 2 types 1. Rot 2. Bleed • Galvanized coating • Specify “hot-dipped” • Avoid electro-galvanized (bright) • Stainless steel • Polymer-coated
SCREWS
SCREWS
NAILS • Hardened piece of wire • Nail length is given in “Penny Weight” (d)10d nail is about 3” long
NAILS Avoid Splitting Wood • Using pilot holes • Flat side with the grain
NAILS Avoid splitting wood • Stagger nails
NAILS TYPES • • • • •
Smooth shank Ring shank Spiral shank Truss nail Duplex nail (temporary)
BOLTS • • • •
Better shear strength than nails and screws Used in major structural joints Size: diameter and length Sizing length: 1” greater than the adjoining boards
PILOT HOLE for BOLTS
• Pilot hole same size as bolt • Thread bite not required • Washers and nut required to fasten
BOLT TYPES Standard Bolt • Hex or square head
BOLT TYPES Carriage bolt • Round head with square base for better look and feel • Tighten until square base crunches in
BOLT TYPES Expanding or wedge bolt • Attaching to concrete or brick • Flange fits into pre-drilled hole
Wedge Bolt Installation
• Drill depth of bolt with concrete bit • Hammer bolt to bottom of pilot hole • Avoid flattening threads
• Tighten nut and washer
Company Address
SRIRAJ GROUP
#Plot No: F5-F6, Satellite Industrial Estate, Shivalayam Road, Balanagar, Hyderabad. Pin: 500 037, Telangana State, India. Phone: +91040-64509281, 09246178578 Fax: +9104023777206 Email: info@srirajgroup.com