ISO 4017 specifies the characteristics of hexagon head screws with threads from M1.6 up to and including M64. It is the ISO equivalent of the popular DIN 933 standard, featuring a fully threaded shank.
SRG Fasteners produces ISO 4017 bolts for global OEMs who require strict adherence to modern International Organization for Standardization specifications.
Frequently Asked Questions
Is ISO 4017 a bolt or a screw?
In ISO terminology, a fully threaded fastener turned by the head is technically classified as a 'screw', hence ISO 4017 is often titled 'Hexagon head screws', whereas the partially threaded ISO 4014 is a 'bolt'. However, in industry, both are commonly called bolts.