3a thread class right-hand 0.438" thread length flat chamfer head style 40 thread quantity per inch black oxide alloy steel socket head cap screw oxide surface treated unc thread series
2a thread class right-hand 0.972" thread length flat countersunk head style 28 thread quantity per inch 18-8 stainless steel phillips flat head machine screw unf thread series
3a thread class right-hand 0.375" thread length flat chamfer head style 32 thread quantity per inch black oxide alloy steel socket head cap screw oxide surface treated unc thread series
Used on 04951400-2 (50225) rfdacs hf sw chassis and 04951400-2 (50225) rfdacs uhf sw chas. 2a thread class right-hand 0.359" thread length flat chamfer head style 32 thread quantity per inch captive panel screw unc thread series
Used on 2350-01-565-3460 armored reconnaissance-airborne assault vehicle,m2a2. 2a thread class 0.182" thread length fillister head style socket head shoulder screw thread:coarse