Tamper Resistant Button Socket Cap, Thermal Black Oxide, Alloy (inch)

Tamper resistant button socket cap screws are externally threaded fasteners with a rounded head and a unique internal hexagon shaped drive.  The unique hexagon drive has an added pin in the drive requiring special tools to install and uninstall them.  Typically used in machine parts or areas with limited space, button socket cap screws install with key drives commonly referred to as hex keys, Allen keys or Allen wrenches. 

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