hardware screws
tamper pruf screw 141290 mach screw rnd 1 4 20x3 4 l pk 100
tamper resistant screw head type round case hardened steel length 3 4 drive type one way finish zinc plated thread size 1 4 20 driver size 14 head dia . 0.443 0.472 head height 0.160 0.175 meets exceeds ansi asme b18 .6.3 package quantity 100 br b features b ul li finish zinc plated li li item tamper resistant screw li li length 3 4 li li material case hardened steel li li package quantity 100 li li thread size 1 4 20 li li drive type one way li li driver size 14 li li head type round li li meets exceeds ansi asme b18 .6.3 li li head dia . 0.443 0.472 li li head height 0.160 0.175 li ul