ASTM F436 — Hardened Steel Washers

ASTM F436 covers hardened steel washers used under high-strength structural bolts — through-hardened washers that will not dish under A325/A490 clamp loads.

What It Covers

• Through-hardened and carburized washers
• Washers for A325 and F3125 bolts
• Dimensions and hardness
• Marking requirements

Related Fasteners

• Structural Washer
• Flat Washer
• Square Plate Washer
• Structural Bolt