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ASME B18.2.6-2019

Fasteners for Use in Structural Applications

This Standard covers the complete general and dimensional data for five products in the inch series recognized as an American National Standard. These five structural products include: (a) Heavy hex structural bolts: ASTM F3125/F3125M; (b) Heavy hex nuts: ASTM A563 and ASTM A194/A194M; (c) Hardened steel washers — circular, circular clipped, and beveled: ASTM F436/F436M; (d) Compressible washer-type direct tension indicators: ASTM F959/F959M; (e) Twist-off-type structural bolts —heavy hex and round: ASTM F3125/F3125M. The inclusion of dimensional data in this Standard is not intended to imply that all products described herein are stock production sizes. Consumers should consult with suppliers concerning lists of available stock production sizes.

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