hardware screws
rti71 mach screw rnd 1 4 20x5 8 l pk 100
machine screw head type round carbon steel length 5 8 drive type combination slotted phillips finish zinc plated thread size 1 4 20 driver size 3 head dia . 0.443 head height 0.160 rockwell hardness b70 meets exceeds ansi b18 .6.3 package quantity 100 br b features b ul li finish zinc plated li li item machine screw li li length 5 8 li li material carbon steel li li package quantity 100 li li thread size 1 4 20 li li drive type combination slotted phillips li li driver size 3 li li head type round li li meets exceeds ansi b18 .6.3 li li rockwell hardness b69 to b100 li li head dia . 0.472 0.443 li li head height 0.175 0.160 li ul