These standards from ISO and SAE cover standardized screw socket requirements sorted by head. This list covers cross socket screw standards.
Defines the type H and type Z; dimensions are illustrated by figures; tabulates gauge dimensions from No. 0 up to and including No. 4; includes a method of penetration gauging for both types.
ISO 7048:2011 specifies the characteristics of cross-recessed cheese head screws of product grade A, with threads from M2,5 to M8 inclusive, and with cross recesses of types H and Z.
ISO 7046-1:2011 specifies the characteristics of countersunk flat head screws with threads from M1,6 to M10 inclusive, of product grade A and property class 4.8, and with type H or type Z cross recess.
ISO 7046-2:2011 specifies the characteristics of recessed countersunk flat head screws with threads M2 up to and including M10, of grade A and of property class 8.8 for steel, A2-70 for stainless steel and CU2 and CU3 for non-ferrous metals.
ISO 7047:2011 specifies the characteristics of countersunk raised head screws of product grade A, with threads from M1,6 to M10 inclusive and with type H or type Z cross recess.
This International Standard specifies the characteristics of cross recessed pan head drilling screws with tapping screw threads from ST2,9 up to and including ST6,3.
ISO 7049:2011 specifies the characteristics of cross-recessed pan head tapping screws with thread sizes from ST 2,2 to ST 9,5 inclusive.
This International Standard specifies the characteristics of cross recessed countersunk head drilling screws with tapping screw threads from ST2,9 up to and including ST6,3.
This International Standard specifies the characteristics of cross recessed raised countersunk head drilling screws with tapping screw threads from ST2,9 up to and including ST6,3.
ISO 7050:2011 specifies the characteristics of cross-recessed countersunk (flat) head tapping screws with thread sizes from ST 2,2 to ST 9,5 inclusive.
ISO 7051:2011 specifies the characteristics of cross-recessed raised countersunk (oval) head tapping screws with thread sizes from ST 2,2 to ST 9,5 inclusive.
ISO 7045:2011 specifies the characteristics of pan head screws of product grade A, with threads from M1,6 to M10 inclusive, and with type H or type Z cross recess.
This part of ISO 7721 specifies the penetration depth of cross recesses of countersunk flat head screws for the two series 1 and 2 (deep and shallow, respectively).