Common Fastener Material Standards
Inch Series
Metric Series
Steel
Stainless Steel
Stainless Steel
High Temp
Not applicable
Inch Series · Steel
SAE J429
Defines mechanical and material requirements for externally threaded inch-series fasteners used in automotive and general applications. Covers grade designations 1 through 8, including proof load, yield, and tensile strength requirements.
Metric Series · Steel
ISO 898-1
Specifies mechanical properties of bolts, screws, and studs made of carbon steel and alloy steel. Defines property class designations (e.g. 8.8, 10.9, 12.9) and corresponding minimum tensile, yield, and proof load values.
Inch Series · Stainless Steel
ASTM F593
Covers stainless steel bolts, hex cap screws, and studs in inch sizes. Specifies alloy groups (e.g. 304, 316), condition designations, and mechanical property requirements including tensile and yield strength.
Metric Series · Stainless Steel
ISO 3506-1
Specifies mechanical properties for corrosion-resistant stainless steel bolts, screws, and studs. Covers property classes A2-70, A2-80, A4-70, and A4-80 with requirements for tensile strength, elongation, and hardness.
Inch Series · Stainless Steel · High Temp
ASTM A193
Covers alloy-steel and stainless steel bolting for high-temperature or high-pressure service. Includes grades B7, B7M, B8, B8M, and related alloys with requirements for mechanical properties and heat treatment.
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