ASME/ANSI B18.3.4M

METRIC HEXAGON SOCKET BUTTON HEAD CAP SCREWS

English 1993
0.000
ASME ANSI
Detailed Information

1.1.1 This standard contains the complete general and dimensional requirements for metric series hexagon socket button head cap screws of nominal sizes from 3 mm to 16 mm recognized as an American National Standard. Also included are appendices covering formulas for dimensions, part numbering system and preferred sizes for government use, and thread dimensions. The application of these screws is limited by their design as denoted below.

This product is designed and recommended for applications where a lower head profile than that of the normal socket head cap screw (ASME/ANSI B18.3.1M, page H-1) is required to prevent interference. Wrenchability is significantly reduced due to the smaller sockets and shallower key engagements and, because of the head configuration, the Property Class 12.9 tensile loads will not be met. It may be necessary to assemble this product using a nut to develop the full clamping capability.

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