Illustrative drawing. Actual product is confirmed to your specification at quotation.
Bolts
Structural Bolts
Structural bolts are supplied as a matched assembly of bolt, nut and hardened washer for preloaded or slip-critical joints. Follow the specification and tightening method for the system, such as ASTM F3125 A325 / A490, IS 3757 or EN 14399.
- Supplied as bolt, nut and washer sets
- Preload tightening required
- Galvanised or plain
Specifications
- Material
- Carbon steelAlloy steelStainless steel A2 (AISI 304)Stainless steel A4 (AISI 316)
- Grade / property class
- A325A490IS 3757 Class 8.8 / 10.9EN 14399 8.8 / 10.9
- Thread
- UNC / UNF (imperial)Metric coarse (ISO 261)
- Finish / coating
- Plain / blackHot-dip galvanisedMechanically galvanised
- Size range
- M8–M12M14–M24M27–M48
- Standards
- ASTM F3125 (A325 / A490)IS 3757EN 14399-4 (HV)EN 14399-3 (HR)
Exact dimensions, lengths and availability are confirmed at quotation.
Applications
- Pre-engineered buildings and steel sheds
- Bridges and flyovers
- Transmission towers
- Industrial platforms and racking
- Crane girders
Related and complementary fasteners
Request a quote for Structural Bolts
Give us the size, grade, finish and quantity. We reply within one business day.
Common questions
- Which sizes and grades of structural bolts do you supply?
- We supply structural bolts in M8–M12, M14–M24, M27–M48 size bands and grades/classes including A325, A490, IS 3757 Class 8.8 / 10.9, EN 14399 8.8 / 10.9. Exact availability, dimensions and lead time are confirmed at quotation.
- Which standards do structural bolts follow?
- Common standards are ASTM F3125 (A325 / A490), IS 3757, EN 14399-4 (HV), EN 14399-3 (HR). Tell us the standard you need and we will quote to it.
- Can you supply in bulk or with test certificates?
- Yes. We quote for loose lots and scheduled bulk supply across India, and can share manufacturer test certificates where available. Confirm the requirement when you request a quote.
Need a quote on bulk or custom industrial supply?
Share your specifications and quantities — our technical team will respond with pricing and lead time within one business day.