Specifies the dimensions and mechanical properties of heat-treated steel cross recessed countersunk (flat) head tapping screws (common head style) in sizes from ST 2.2 to ST 9.5 inclusive. Identical with and has been reproduced from ISO 7050:1983.
AS/NZS 4407:1996 history
1970AS/NZS 4407:2015 Cross recessed countersunk head (flat) head self-tapping screws (ordinary head type)
1996AS/NZS 4407:1996 Cross recessed countersunk (flat) head tapping screws (common head style)