2a thread class right-hand 0.312" thread length pan head style 32 thread quantity per inch nylon 6/6 pan head slotted machine screw material plastic type nylon 6/6 unc thread series
3a thread class right-hand 0.425" thread length dished hexagon head style 0.046" hole diameter 2.052" grip length 28 thread quantity per inch bolt tension hex head close tolerance, A286 cres, long thread, reduced major thread diameter, self-locking cadmium surface treated unjf thread series