2a thread class right-hand 0.281" thread length flat chamfer head style 32 thread quantity per inch head vertically knurled passivate fastener surface treated unc thread series
3a thread class right-hand 0.291" thread length flat countersunk undercut head style 28 thread quantity per inch cadmium screw surface treated furnished with one flat polytetrafluoroethylene washer unjf thread series
3a thread class right-hand 0.938" thread length 1.656" overall length 32 thread quantity per inch navy special project passivate surface treated round, closed w/shoulder unf thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.282" grip length 10350 double pounds per square inch shear strength passivate surface treated
3a thread class right-hand 0.340" thread length dee chamfer head style 1.410" grip length 20 thread quantity per inch underside of head flat chamfered 0.040 in. min, 0.050 in. max lg by 45 deg cadmium surface treated unjf thread series
2a thread class right-hand 0.270" thread length double chamfer head style 32 thread quantity per inch T250 microinch finish except 32 microinch finish on periphery of point. undercut 0.062 in. wide, 0.380 in. dia between head bearing surface passivate surface treated un thread series
