2a thread class right-hand 1.375" thread length knurled no. 4 head style 16 thread quantity per inch finish color black; optional class 3a oxide surface treated unc thread series
2c thread class left-hand 5.377" thread length flat chamfer head style 5 thread quantity per inch with unthreaded portion between threads passivate surface treated acme thread series
2c thread class right-hand 5.377" thread length flat chamfer head style 5 thread quantity per inch with unthreaded portion between threads passivate surface treated acme thread series