ASME B18.2.3.1M (1999)

Metric Hex Cap Screws

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Annotation and contents

This Standard covers the complete general and dimensional data for metric hex cap screws recognized as American National Standard. The inclusion of dimensional data in this standard is not intended to imply that all of the sizes in conjunction with the various options described herein are stock items. Consumers are requested to consult with manufacturers concerning lists of stock production hex cap screws.

This publication is issued with an automatic addenda service.  All addenda service publications are issued in loose leaf format to facilitate later insertion of replacement pages which incorporate the latest approved changes to the standard.  Purchasers may wish to purchase a binder from ASME (ASME Binder), but the publication will also fit a standard three ring binder.  Details on the specifics of the addenda service are as follows:

Addenda Schedule:  No Set Schedule
Next Edition:  No Set Schedule
Interpretations:  Posted on Website