5/16"-18 Finished Hex Nut, Grade 8, Coarse Thread, Medium Carbon, Yellow Zinc

5/16"-18 Finished Hex Nut, Grade 2, Coarse Thread, Low Carbon, Zinc CR+3

5/16"-18 Finished Hex Nut, Coarse Thread, Hot Dipped Galvanized

5/16"-18 Finished Hex Nut, Grade 2, Coarse Thread, Low Carbon, Zinc CR+3

5/16"-24 Finished Hex Nut, Grade 2, Fine Thread, Low Carbon, Zinc CR+3

3/8"-16 Finished Hex Nut, Grade 2, Coarse Thread, Low Carbon, Zinc CR+3