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ASME B18.6.7M 1999 Edition, January 1, 1999
Complete Document
Active, Most Current
Metric Machine Screws
Includes all amendments and changes through Reaffirmation Notice , 2010
Page Count:55
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This Standard covers the complete general and dimensional data for metric flat countersunk, oval countersunk and pan slotted and recessed head machine screws, and metric hex and hex flange head machine screws recognized as standard. Also included are appendices that provide specifications and instructions for protrusion gaging of flat countersunk head screws, across-corners gaging of hex head screws, and penetration gaging and wobble gaging of recessed head screws, and clearance hole recommendations.

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 the availability of products. The recommended diameter-length combinations applicable to metric machine screws are shown in Table 17.