ASME B18.3.3M (1986)

Hexagon Socket Head Shoulder Screws (Metric Series)

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Annotation and contents

This standard is no longer an American National Standard or an ASME-approved standard. It is available for historical reference only.

This Standard contains complete dimensional, mechanical, and performance requirements for Metric Series Hexagon Socket Head Shoulder Screws with nominal shoulder diameters from 6.5 mm to 25 mm. Also included are appendices covering formulas for dimensions, part numbering system and preferred sizes for government use, and thread dimensions. The inclusion of dimensional data in this Standard is not intended to imply that all of the products described are stock production sizes. Consumers should consult with manufacturers concerning lists of stock production sizes.