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ANSI/ASME B18.2.1-1996 (R2005)

Square and Hex Bolts and Screws (Inch Series)

Covers the complete general and dimensional data for eight product types of inch series and hex bolts and screws recognized as American National Standard.

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American Society of Mechanical Engineers [ASME]


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As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.

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