The nylon flange head adds stability in hollow surfaces

5/8-11 x 16 Socket Cap Screw Alloy

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

1/2-20 x 6 Socket Cap Screw Alloy

5/8 x 12 Hex Lag Screw Hot Dipped Galvanized

1 1/4-7 Finished Hex Nut SS 316 (A4) 5/8-18 Hex Cap Screws 18-8 Stainless Steel The nylon flange head adds1 1 4 7 Finished Hex Nut SS 316 (A4) . Finished Hex Nuts in 316 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. 316 stainless steel differs from 18 8 by it's molybdenum content (2 3%) and a higher nickel content (10 14%). This gives 316 stainless steel a higher degree of corrosion resistance and superior strength at raised