A325 T3 Heavy Hex Structural Bolt
A325 Type 3 (Weathering) Heavy Hex Structural Bolt to ASME B18.2.1 / ASTM A325. 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
Bridges, commercial building structural steel, crane girders, high-rise frameworks, and heavy industrial joints.
More Heavy Hex Structural Bolt fasteners
Need this in a custom size?
Send us your drawing and specification — we manufacture to order in metric or imperial.