2a nut thread thread class right-hand nut thread 0.327" nut thread thread length 2.000" overall length 16 nut thread thread quantity per inch 9/64 inch drilled hole on thds for a cotter pin unf nut thread thread series
2a nut thread thread class right-hand nut thread 0.327" nut thread thread length 1.875" overall length 18 nut thread thread quantity per inch 9/64 inch hole in the thds for cotter pin unf nut thread thread series
Used on w/s: los angeles class ssn (688). 3a thread class right-hand 1.250" thread length flat countersunk head style 16 thread quantity per inch unc thread series