This gives 316 stainless steel a higher degree of corrosion resistance and superior strength at raised temperatures

1/4-20 x 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (50)

3/4-16 x 2 3/4 Socket Cap Screw Alloy

They are available in high strength

1/4-28 x 1 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (2050)

7/8-14 x 8 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (40) Stainless Steel Rivet / Steel Mandrel This gives 316 stainless steel7 8 14 x 8 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (40) . L9 High Tensile Strength Hex Cap Screws are designed for use in high stress, severe service environments. The highest mechanical strength off the shelf fastening system available, its special features control torque tension characteristics to develop high clamp loads when using properly controlled tightening methods. Brighton Best manufactures L9 bolting from AISI alloy steels. L9