ASME B18.2.3.3M (2007)

Metric Heavy Hex Screws

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Annotation and contents

This Standard covers the general and dimensional data for metric heavy hex screws recognized as American National Standard.  This data includes the tolerance zone and length tolerances, dimensions of heavy hex screws, underhead fillets, and points, and thread lengths with maximum grip gaging lengths and minimum body lengths.  Also included are appendices covering the screw straightness gage and gaging procedure and body position gages and gaging procedure.

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