UNF & UNC IMPERIAL SERRATED FLANGE NUTS TO FIT BOLTS & SCREWS

Thread - Choose ether UNF (Fine) Or UNC (Coarse). 10-32 UNF 0.48" 3/8" 0.21" 32. 1/4" UNF 0.58" 7/16" 0.22" 28. 5/16" UNF 0.66" 1/2" 0.27" 24. 3/8" UNF 0.73" 9/16" 0.33" 24. 1/2" UNF 1" 3/4" 0.45" 20.

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