Used on c17 serd 490001. 3a thread class right-hand 0.890" thread length 2.303" overall length 24 thread quantity per inch altered item make from AN45C12a round, closed w/shoulder unf thread series
2a thread class right-hand 2.500" thread length 6.750" overall length 18 thread quantity per inch threaded with nut round, closed w/shoulder unc thread series
2a thread class left-hand 4.540" thread length 11.300" overall length 20 thread quantity per inch supply with 0.250-28unf 2a thd on point 0.400 in. lg nickel surface treated unf thread series
2a thread class right-hand 1.875" thread length 4.624" overall length 10 thread quantity per inch navy special project cadmium surface treated round, closed unc thread series
2a thread class right-hand 1.500" thread length 2.000" overall length 20 thread quantity per inch navy special project round, closed w/shoulder unc thread series