3a thread class right-hand 4.875" thread length hexagon head style 13 thread quantity per inch undercut beneath bearing surface of head dia 0.475", width 0.031", at a distance of 1.724" from bearing surface item is grooved 0.219" wide by 0.031 to 0.036" in depth, between these two points the dia has been machined to a dia of 0.490 to 0.495" unc thread series
Used on f-101 engine. 3a thread class right-hand 0.063" thread length 32 thread quantity per inch hex. drive in threaded end depth nom. 0.125 in. unjc thread series
Used on f-101 engine. 3a thread class right-hand 0.746" thread length double hexagon extended washer head style 28 thread quantity per inch unjf thread series
Used on f-101 engine. 3a thread class right-hand 0.667" thread length double hexagon extended washer head style 28 thread quantity per inch unjf thread series
3a thread class right-hand 0.651" thread length double hexagon extended washer head style 24 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.336" thread length hexagon head style 0.072" grip length 32 thread quantity per inch color black oxide surface treated unjf thread series
3a thread class right-hand 0.523" thread length double hexagon extended washer head style 0.072" grip length 32 thread quantity per inch unjf thread series