ASTM Specification


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Specifications For Fasteners viz. Nuts,Bolts & Washers


ASTM - Americal Society for Testing and Materials


The American Society for Testing and Materials is an international standards organization that develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems, and services.




Below are some Specifications Designed for Materials Used for Fastener Manufacturing, Includes Nuts,Bolts,Studs & Washers.


ASTM Specifications for Bolt Fasteners


A193 - Alloy steel and stainless steel bolting materials for high temperature or high pressure service.
A307 - Carbon steel bolts and studs, 60,000 psi tensile strength.
A320 - Alloy steel and stainless steel bolting materials for low temperature service.
A325 - Structural bolts, steel, heat treated, 120/105 ksi minimum tensile strength.
A354 - Quenched and tempered alloy bolts, studs, and other externally threaded fasteners.
A449 - Quenched and tempered steel bolts and studs for general use.
A490 - Structural bolts, alloy steel, heat treated, 150 ksi minimum tensile strength.
F568 - Standard for metric bolts, screws and studs that are used in general engineering applications
F593 - Stainless steel bolts, hex cap screws, and studs.
F1554 - Anchor bolts designed to anchor structural supports to concrete foundations.



ASTM Specifications for Nut Fasteners


A194 -  Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High Pressure or High Temperature Service
A563 - Standard Specification for Wrought Cobalt-20Nickel-20Chromium-3.5Molybdenum-3.5Tungsten-5Iron Alloy for Surgical Implant Applications
A594 - Standard Specification for Stainless Steel Nuts , Corrosive service applications



ASTM Specifications for Washers


F436 - Specification for Hardened Steel Washers , carbon steel, steel, washers, weathering steel, Hardened steel washers
F844 - Standard Specification for Washers, Steel, Plain (Flat), Unhardened for General Use
F959 - Standard Specification for Compressible-Washer-Type Direct Tension Indicators for Use with Structural Fasteners





SAE International (Society of Automotive Engineers) is a standards development organization with fastener specifications that apply to the aerospace, automotive, and commercial vehicle industries. SAE bolts are also used in machinery, equipment, and OEM applications.



Bolt Specifications


SAE J429 Mechanical and material requirements for externally threaded fasteners.


Nut Specifications


SAE J995 Mechanical and material requirements for steel nuts.




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