5/16-18 x 5-1/2" Machine Screw - Flat Head - Slotted - Steel - Zinc - FT - Pkg of 100 - BBI 580792
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The B5/16-18 x 5-1/2" machine screw is a flat head, slotted screw made of steel with a zinc CR+3 finish, packaged in a 100-piece kit (BBI 580792). Machine screws are engineered to pass through a pre-tapped hole or nut to create a secure mating thread. The flat head design is specifically utilized when the projection of the fastener above the mating surface is not permissible.
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