3/8-16X5/8X1/4 Standard Pattern Hex Machine Screw Nut Black Oxide (Pack Qty 2,000) BC-37NHB

Hex Machine Screw Nut: Designed to be used specifically with machine screws. Stainless nuts are used with stainless machine screws where parts are subject to corrosive conditions. Square Machine Screw Nut: Offers a greater bearing surface for wrenching Steel: Any low carbon steel. Stainless: 18-8 stainless steelYou may also like M4-1.79X18 Metric Phillips Flat Head PT Alternative 30 Degree Full Thread A2 Stainless Steel (Pack Qty 3,000) BC-M418PTPFA2.