hardware screws
socket set screw steel black 4 40 cup hex drive .050 oal 5 16 pk 100
socket set screw alloy steel black oxide finish thread size 4 40 point type cup point material alloy steel drive type hex socket drive size 0.050 overall length 5 16 point dia . 0.051 to 0.061 class 3a rockwell hardness hrc 45 53 meets asme b18 .3 astm f912 package quantity 100 br b features b ul li meets asme b18 .3 astm f912 li li material alloy steel li li package quantity 100 li li class 3a li li decimal equivalent 0.050 li li drive type hex socket li li point type cup li li item socket set screw li li thread size 4 40 li li point dia . 0.051 to 0.061 li li point material alloy steel li li finish black oxide li li drive size 0.050 li li overall length 5 16 li li rockwell hardness hrc 45 53 li ul