2a thread class right-hand 1.250" thread length hexagon head style 13 thread quantity per inch 1/2"-13X2" grade 8 yellow zinc hex cap screw material steel grade 8 zinc surface treated unc thread series
3a thread class left-hand straight pan head style 0.875" grip length 28 thread quantity per inch 11800 double pounds per square inch shear strength id color coded, black, on threaded end aluminum alloy surface treated unjf thread series
2a thread class right-hand 1.500" thread length hexagon head style 11 thread quantity per inch 5/8"-11X5-1/2" grade 8 yellow zinc hex cap screw material steel grade 8 zinc surface treated unc thread series
3a thread class right-hand straight pan head style 0.750" grip length 24 thread quantity per inch 14600 double pounds per square inch shear strength id color, black, on threaded end aluminum alloy surface treated unjf thread series
3a thread class right-hand straight pan head style 0.875" grip length 24 thread quantity per inch 14600 double pounds per square inch shear strength id color, black, on threaded end aluminum alloy surface treated unjf thread series
3a thread class right-hand 1.000" thread length flat fillister head style 20 thread quantity per inch screw, hex head socket low head style unc thread series
2a thread class right-hand 1.125" thread length hexagon head style 14 thread quantity per inch 7/16"-14X2-1/4" grade 8 yellow zinc hex cap screw material steel grade 8 zinc surface treated unc thread series
3a thread class left-hand straight pan head style 0.750" grip length 28 thread quantity per inch 9300 double pounds per square inch shear strength id color coded, black, on threaded end aluminum alloy surface treated unjf thread series
Used on aircraft, c-5. 3a thread class right-hand 0.768" thread length double hexagon extended washer head style 2.500" grip length 20 thread quantity per inch bolt unjf thread series
Used on aircraft, c-5. 3a thread class right-hand 0.625" thread length double hexagon extended washer head style 2.000" grip length 24 thread quantity per inch bolt unjf thread series
2a thread class right-hand 0.720" thread length hexagon head style 18 thread quantity per inch material steel grade 8 zinc surface treated unc thread series