Finished Hex Nuts in 18-8 stainless steel are for use with stainless steel bolts or screws with a specified minimum tensile strength equal or less than the specified proof stress of the mating nut

The slots are on the end opposite the bearing surface

3/4-10 x 2 1/2 Socket Cap Screw 18-8 (A2) Stainless Steel

1-14 x 4 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated

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3/4-10 x 6 1/2 Socket Cap Screw Zinc 9/16-18 Socket Cap Screws Alloy Finished Hex Nuts in 18-83 4 10 x 6 1 2 Socket Cap Screw Zinc . Alloy Socket Head Cap Screws from Brighton Best. Hardness of RC 38 43, meets or exceeds ASTM A574. Manufactured from heat treated alloy steel, 1960 series.