Type 3 Hardened Structural Washer
F436 Type 3 (Weathering) Hardened Structural Washer to ASTM F436 / F436M. Manufactured to order and supplied with full documentation.
Manufactured to order. Full material certificates and dimensional reports supplied with every shipment.
Key features
Finishes available
No coating — the bare machined finish. Used where no extra corrosion protection is needed, or where the part is painted after assembly.
Zinc electroplating. A thin, bright, low-cost coating — the everyday choice for indoor and sheltered machinery.
Hot-dip galvanizing (HDG). A thick zinc coating measured in decades outdoors, not years — bridges, transmission towers, coastal sites.
PTFE (fluoropolymer) coating. Very low friction and high chemical resistance for offshore, subsea and refinery duty.
Diameters available
Typical applications
High-strength structural building joints, bridge splices, offshore jackets, crane towers, and heavy structural steelwork.
More Hardened Structural Washer fasteners
Need this in a custom size?
Send us your drawing and specification — we manufacture to order in metric or imperial.