2b single mounting facility thread class 1.750" overall length 1.000" overall width 40 single mounting facility thread quantity per inch unc single mounting facility thread series
4.157" overall length 1.734" overall width 32 single mounting facility thread quantity per inch tap, square frame unc single mounting facility thread series
2b thread class right-hand 1.120" overall length 0.792" overall width 24 thread quantity per inch cadmium surface treated gland nut type unef thread series