2a thread class right-hand 0.375" thread length double chamfer head style 20 thread quantity per inch furnished with retainer color black, stainless steel oxide fastener surface treated unc thread series
2a thread class right-hand 0.295" thread length pan no. 2 head style 24 thread quantity per inch navy special project passivate fastener surface treated unc thread series
3a thread class right-hand 0.262" thread length flat chamfer head style 24 thread quantity per inch passivate fastener surface treated unrc thread series