flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.812" grip length grit blast top of head passivate sleeve surface treated
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.470" grip length powder blast top of head passivate sleeve surface treated
3a thread class right-hand 0.502" grip length caution restricted usage 0.0156 oversized for repair work. white color on threaded end aluminum surface treated unjc thread series