Tamper-Pruf Screws 21550

TamperScrew, Head Type Button, Material Steel, Finish Black Oxide, Drive External Hex, Thread Size 1/4 In.-20, Fastener Length 1 in, Head Height 0.122 to 0.132 in, Drive Size 5/32 in, Dimensional Standards ASME B18.3, Minimum Thread Length Not Applicable, Type Machine Screw, Washer Outside Diameter Not Applicable, Washer Thickness Not Applicable, Maximum Head Width 7/16 in, Maximum Head Height 1/8 in, System of Measurement Inch, Thread Style Fully Threaded, Thread Type Coarse