Illustrative drawing. Actual product is confirmed to your specification at quotation.
Nuts
Structural Nuts
Structural nuts are used with matching structural bolts and hardened washers in steel framing, bridges and towers. Use the nut grade and system specified for the bolt, such as A563 DH with A325 or EN 14399 HR / HV assemblies.
- Heavy hex for structural joints
- Supply as part of a bolt-nut-washer set
- Galvanised nuts are tapped oversize
Specifications
- Material
- Carbon steelMedium-carbon / alloy steel (heat treated)
- Grade / property class
- A563 DHA563 CIS 6623 Class 8 / 10EN 14399 Class 8 / 10
- Thread
- Metric coarse (ISO 261)UNC / UNF (imperial)
- Finish / coating
- Plain / blackHot-dip galvanisedMechanically galvanised
- Size range
- M8–M12M14–M24M27–M48
- Standards
- ASTM A563 Grades C, DHASTM F3125IS 6623EN 14399-3 (HR)
Exact dimensions, lengths and availability are confirmed at quotation.
Applications
- Steel buildings and PEB structures
- Bridges and transmission towers
- Industrial sheds and platforms
- Crane and heavy equipment frames
- Infrastructure projects
Related and complementary fasteners
Request a quote for Structural Nuts
Give us the size, grade, finish and quantity. We reply within one business day.
Common questions
- Which sizes and grades of structural nuts do you supply?
- We supply structural nuts in M8–M12, M14–M24, M27–M48 size bands and grades/classes including A563 DH, A563 C, IS 6623 Class 8 / 10, EN 14399 Class 8 / 10. Exact availability, dimensions and lead time are confirmed at quotation.
- Which standards do structural nuts follow?
- Common standards are ASTM A563 Grades C, DH, ASTM F3125, IS 6623, 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.