Fastener Material Specifications
Aug 2025

Fastener Material Specifications

Bolt Specifications
ASTM A193High-strength alloy and stainless steel bolts designed for elevated temperature or pressure, as well as demanding industrial conditions.
ASTM A307General-purpose carbon steel bolts, studs, and threaded rods with a minimum tensile strength of 60,000 PSI.
ASTM A320Bolts and studs made from alloy or stainless steel, specifically engineered for use in low-temperature environments.
ASTM A325Structural-grade steel bolts, heat-treated for durability, delivering tensile strength between 105 and 120 ksi.
ASTM A354Quenched and tempered alloy bolts, studs, and fasteners built for critical applications requiring high performance.
ASTM A449Medium-strength steel bolts and studs, quenched and tempered, suitable for a variety of general construction uses.
ASTM A490Alloy steel structural bolts, heat-treated to achieve a minimum tensile strength of 150 ksi.
ASTM F593Stainless steel hex bolts, screws, and studs for corrosion-resistant fastening solutions.
ASTM F1554Anchor bolts intended for securing structural supports to concrete foundations.
ASTM F3125Unified structural bolt specification combining A325, A490, and related standards into one streamlined requirement.

Washer Specifications
ASTM F844Unhardened plain steel washers for general-purpose fastening applications.
ASTM F436Hardened steel washers available in inch and metric sizes for structural and heavy-duty uses.
ASTM F959Compressible washer-type direct tension indicators, suitable for both inch and metric structural bolts.

Nut Specifications
ASTM A194Carbon and alloy steel nuts designed for high-pressure bolts and use in elevated temperature service.
ASTM A563Specifications for standard carbon and alloy steel nuts used in general fastener applications.
ASTM A594Specifications for corrosion-resistant stainless steel nuts.

Plating Specification Description
ASTM A153Zinc coating (hot dip) on hardware made from iron and steel.
ASTM AB695Zinc coatings mechanically applied to iron and steel components.
ASTM F1941Electrodeposited zinc plating for threaded fasteners.
ASTM F2329Zinc coating and hot dip treatment for special threaded fasteners including bolts, screws, washers, and nuts.

Rebar Specification Description
ASTM A615Deformed and plain carbon steel bars used for concrete reinforcement.
ASTM A706Deformed and plain low-alloy steel bars with improved weldability for reinforced concrete applications.

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