2a thread class right-hand 0.422" thread length round extended washer head style 32 thread quantity per inch nickel screw surface treated unf thread series
2a thread class right-hand 1.812" thread length pan no. 2 head style 20 thread quantity per inch cadmium or zinc screw surface treated unc thread series
3a nut thread thread class right-hand nut thread 1.250" stud thread thread length 5.562" overall length 14 nut thread thread quantity per inch one pointed end 0.312 in. tapering to a 60 degree angle with a microinch finish of 125 cadmium surface treated uns stud thread thread series
1a thread class right-hand 0.740" thread length round w/wrench flats chamfered head style 0.740" grip length 24 thread quantity per inch groove under head 0.110 min 0.130 max length 0.309 min 0.312 max dia 32 finish nickel surface treated unjf thread series
3a thread class right-hand 1.250" thread length flat chamfer head style 16 thread quantity per inch three 0.094 in. dia locking slots equally spaced, drilled at right angles to the bearing surface unc thread series