2a thread class right-hand 0.875" thread length hexagon head style 24 thread quantity per inch screw, hex head patch type:self locking unf thread series
3a thread class right-hand 0.500" thread length flat fillister head style 40 thread quantity per inch hole drilled through center of head allows two screws to be wired together to prevent them from loosening due to vibration unc thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.172" grip length 450 single pounds per square inch shear strength anodize surface treated
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.172" grip length 450 single pounds per square inch shear strength anodize surface treated
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.062" grip length 450 single pounds per square inch shear strength anodize surface treated
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.297" grip length 450 single pounds per square inch shear strength anodize surface treated
Used on air support equipment. 2a stud thread thread class right-hand stud thread 1.800" stud thread thread length 1.800" overall length 32 stud thread thread quantity per inch material brass qq-b-637 comp 1 unf stud thread thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.050" grip length 450 single pounds per square inch shear strength anodize surface treated
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.172" grip length 450 single pounds per square inch shear strength anodize surface treated