DIN 933 defines the dimensions and tolerances for hexagon head bolts threaded up to the head (full thread). This is one of the most widely used fastener standards globally, suitable for structural steelwork, machinery, and automotive applications.
SRG Fasteners manufactures DIN 933 bolts in metric sizes ranging from M3 to M64, utilizing materials from standard mild steel to advanced exotic alloys like Inconel and Duplex.
Frequently Asked Questions
What is the difference between DIN 933 and DIN 931?
DIN 933 specifies a bolt that is fully threaded all the way to the underside of the head, whereas DIN 931 specifies a bolt with a partial thread and an unthreaded shank.