2a thread class right-hand 0.812" thread length ball head style 32 thread quantity per inch flat on top of ball head 0.209 in. width; 0.158 in. length from top to most fullness of ball head unef thread series
2a thread class right-hand 0.636" thread length pan no. 2 head style 24 thread quantity per inch cadmium or zinc screw surface treated unc thread series
3a thread class right-hand 1.140" thread length pan no. 2 head style 0.045" hole diameter 32 thread quantity per inch passivate screw surface treated unjf thread series
3a thread class right-hand 1.196" thread length flat countersunk head style 24 thread quantity per inch cadmium screw surface treated unjf thread series