Illustrative drawing. Actual product is confirmed to your specification at quotation.
Washers
Heavy Series Washers
Heavy series washers are thicker than normal washers and spread loads from high-strength bolts on bearing surfaces that would otherwise yield. Hardened versions are used under structural bolts.
- Extra thickness
- Hardened versions for structural bolts
- Large bearing area
Specifications
- Material
- Carbon steelSpring steelStainless steel A2 (AISI 304)Stainless steel A4 (AISI 316)
- Grade / property class
- Hardened 300–370 HV (structural)Hardness class 200 HV
- Thread
- Not threaded
- Finish / coating
- Plain / blackHot-dip galvanisedZinc plated
- Size range
- Up to M6M8–M12M14–M24M27–M48
- Standards
- DIN 7349DIN 6916ASTM F436
Exact dimensions, lengths and availability are confirmed at quotation.
Applications
- Structural steel and base plates
- Heavy machinery joints
- Crane and equipment frames
- Large-diameter bolts
- Soft or lower-strength surfaces
Related and complementary fasteners
Request a quote for Heavy Series Washers
Give us the size, grade, finish and quantity. We reply within one business day.
Common questions
- Which sizes and grades of heavy series washers do you supply?
- We supply heavy series washers in Up to M6, M8–M12, M14–M24, M27–M48 size bands and grades/classes including Hardened 300–370 HV (structural), Hardness class 200 HV. Exact availability, dimensions and lead time are confirmed at quotation.
- Which standards do heavy series washers follow?
- Common standards are DIN 7349, DIN 6916, ASTM F436. 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.