5/16-18 x 1-1/2" One-Way Security Machine Screw - Round Head - 18-8 Stainless Steel - Pkg of 50

B10-32 x 1" Machine Screw - Indented Hex Head - Unslotted - Steel - Zinc CR+3 - UNF - FT - Pkg of 100 Machine Screws are designed to go through a hole or nut that is pre-tapped to form a mating thread for that screw. Indented hex head screws are designed to be driven by a wrench or pneumatic tools.

Tamper Proof Machine Screws are used in areas where prevention of public tampering or vandalism is important. They are distinguished by their unconventional drive styles, which are designed to minimize the possibility of removal. Tamper Proof Screws can be found in schools, public parks, correctional facilities, and many other locations where there is a high level of public activity. One-way Tamper Proof screws install with a standard flat-blade driver but are not removable. This Product is Made up of 18-8 Stainless Steel.

B10-24 x 1-1/4" Machine Screw - Round Head - Phillips - Steel - Zinc CR+3 - Pkg of 100 - BBI 588437 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.

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. Flat Head screws install flush with metal surfaces or countersinks with softer materials for a clean appearance.

B10-32 x 1-1/4" Machine Screw - Round Head - Slotted - Steel - Zinc CR+3 - FT - 100 Pk - BBI 583438 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.