Dimensions of ASME B18.6.3 Type 1 Cross Recessed Round Head Machine Screws

Nominal Size or Basic Screw Diameter	Head Diameter, A		Head Height, H		Recess Diameter, M	Recess Depth, T	Recess Width, N	Driver Size	Recess Penetration Gaging Depth
	Max	Min	Max	Min					Max	Min
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Note :

• Where specifying nominal size in decimals, zeros preceding the decimals and in the fourth decimal place shall be omitted.