Button Head

Security fasteners provide an added level of security by their drive design that prevents removal with ordinary screw drivers. Maximum torque transfer & positive tool engagement means easier drive installation with less pressure & slippage. Requires matching driver bit. Button Head screws are typically used for general purposes with a lower crown & shallower recess than round head screws.

B1/4-20 x 3" Machine Screw - Flat Head - Phillips - Steel - Zinc CR+3 - FT - Pkg of 100 - BBI 586679 Machine Screws are designed to go through a hole or nut that is pre-tapped to form a mating thread for that screw. Flat head screws are used when protrusion of the fastener above the mating surface is unacceptable.

B3/8-16 x 4" Machine Screw - Flat Head - Phillips - Steel - Zinc CR+3 - FT - Pkg of 100 - BBI 586794 Machine Screws are designed to go through a hole or nut that is pre-tapped to form a mating thread for that screw. Flat head screws are used when protrusion of the fastener above the mating surface is unacceptable.

B5/16-18 x 3" Machine Screw - Round Head - Phillips - Steel - Zinc CR+3 - Pkg of 100 - BBI 588751 Machine Screws are designed to go through a hole or nut that is pre-tapped to form a mating thread for that screw. Round head screws are sometimes perferred over a pan head for its smooth surface and appearance.

B8-32 x 3" Machine Screw - Flat Head - Phillips - 18-8 Stainless Steel - FT - UNC - Pkg of 200 Machine Screws are designed to go through a hole or nut that is pre-tapped to form a mating thread for that screw. Flat head screws are used when protrusion of the fastener above the mating surface is unacceptable.