hardware screws
tamper pruf screw 141310 mach screw rnd 1 4 20x1 1 2 l pk50
tamper resistant screw head type round case hardened steel length 1 1 2 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 50 br b features b ul li finish zinc plated li li item tamper resistant screw li li length 1 1 2 li li material case hardened steel li li package quantity 50 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