Classification
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It is a screw without a head shape and is a deformation product of ordinary hexagon socket screws. It is mainly used for fastening the connection of hole positions in connection mechanisms with fixed countersunk heads, playing a role of locking, simple positioning, and limiting. One end of the headless screw is hexagonal, and the other end has specifications such as DIN916, DIN915, DIN914, DIN913, etc. It should be installed and used using a hexagon wrench of the same size. This screw can be screwed in as a whole, making it look flat and beautiful.