These standards from ISO and SAE cover standardized screw socket requirements sorted by head. This list covers hex socket screw standards.
ISO 8676:2011 specifies the characteristics of hexagon head screws with metric fine pitch thread with nominal thread diameters, d , from 8 mm to 64 mm, of product grade A for nominal thread diameters, d , from 8 mm to 24 mm and nominal lengths, l , up to and including 10 d or 150 mm, whichever is the shorter, and of product grade B for nominal thread diameters, d , over 24 mm or nominal lengths, l , over 10 d or 150 mm, whichever is the shorter.
This document specifies the characteristics of hexagon socket countersunk head screws with reduced loadability due to head design, in steel and stainless steel, with metric coarse pitch threads M2 to M20, and with product grade A. NOTE 1 Other dimensional options are given in ISO 888, ISO 965-1 and ISO 4753. NOTE 2 The reduced loadability (related to the countersunk head dimensions in combination with penetration of the hexagon socket specified in this document) implies a limitation of ultimate tensile load; see Table 5. NOTE 3 Particular attention is needed to ensure alignment of the countersunk head with the bearing surface of the countersink in the assembly.
ISO 12474:2010 specifies the characteristics of hexagon socket head cap screws with metric fine pitch thread with nominal thread diameters from 8 mm up to 36 mm and product grade A.
ISO 4026:2003 specifies the characteristics of hexagon socket set screws with flat point and threads from M1,6 up to and including M24 and of product grade A.
ISO 4027:2003 specifies the characteristics of hexagon socket set screws with cone point and threads from M1,6 up to and including M24 and of product grade A.
ISO 4028:2003 specifies the characteristics of hexagon socket set screws with dog point and threads from M1,6 up to and including M24 and of product grade A.
ISO 4029:2003 specifies the characteristics of hexagon socket set screws with cup point and threads from M1,6 up to and including M24 and of product grade A.
ISO 4762:2004 specifies the characteristics of hexagon socket head cap screws with coarse pitch thread from M1,6 up to and including M64 and product grade A.
Lays down the specification for products with metric dimensions and nominal shoulder diameters form 6,5 mm up to and including 25 mm; gives geometrical tolerances; includes specifications with reference to International Standards; gives an example for the designation.
ISO 7380-1:2011 specifies the characteristics of hexagon socket button head screws with threads from M3 up to and including M16, with product grade A and with reduced loadability.
ISO 7380-2:2011 specifies the characteristics of hexagon socket button head screws with collar with threads from M3 up to and including M16, with product grade A and with reduced loadability.