DIN 961 / ISO 8676 Hex Cap Screws- Full Thread, Fine Thread
DIN 961 specifies fully threaded metric hex bolts with fine thread pitch used in machinery, equipment, and industrial fastening applications. Unlike DIN 933, which uses standard coarse thread, DIN 961 fasteners use a finer pitch thread along the entire length of the shank, providing full thread engagement with improved clamping control and vibration resistance.
DIN 961 bolts are widely used in maintenance, repair, and assembly operations where reliable fastening, fine thread engagement, and controlled load distribution are required.
DIN 961 defines:
-
Fully threaded metric hex bolts
-
Fine thread pitch by diameter
-
Hex head dimensions
-
Mechanical strength requirements
-
Manufacturing tolerances
These bolts feature a fully threaded shank with fine pitch thread that provides maximum thread engagement and improved fastening performance in precision and vibration-prone applications. DIN 961 is commonly treated as the fine-thread, fully threaded counterpart to DIN 933, just as DIN 960 is the fine-thread, partially threaded counterpart to DIN 931.
Select a bolt diameter below to view available DIN 961 / ISO 8676 hex bolt sizes and specs.
