3a thread class right-hand 1.429" thread length crowned hexagon head style 28 thread quantity per inch slotted shank depth 0.097 in. min. passivate surface treated unf thread series
2a thread class right-hand 1.750" thread length hexagon head style 4.250" grip length 8 thread quantity per inch cadmium surface treated unc thread series
3a thread class right-hand 0.875" thread length hexagon head style 0.060" hole diameter A24 thread quantity per inch nickel surface treated unjf thread series
3a thread class right-hand 0.781" thread length hexagon head style 0.740" grip length 20 thread quantity per inch passivate fastener surface treated unjf thread series
