Fastener

The fasteners we commonly use are: DIN 931 - Hexagon head bolts (partial thread), DIN 933 - Hexagon head bolts (full thread), DIN 912 - Hexagon socket head screws, DIN 6921 - Hexagon head bolts with flange, DIN 7991 - Hexagon socket countersunk screws, nuts, DIN 934 - Hexagon nuts, DIN 6923 - Hexagon nuts with flange, washers, DIN 125 - Flat washers, DIN 127 - Spring washers, DIN 9021 - Large flat washers, DIN 7981 - Cross recessed flat head tapping screws, DIN 7982 - Cross recessed countersunk tapping screws, DIN 7504 - Self-drilling screws, pins and pins, DIN 1481 - Elastic cylindrical pins, Lock nuts, combined threaded fasteners, integral fasteners, non-threaded fasteners.
These fasteners can resist wear, corrosion and fatigue in long-term use, extend the service life of the entire equipment or structure, and reduce maintenance and replacement costs. Fasteners provide a more economical solution compared to non-detachable connection methods such as welding.

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