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

1/4-28 x 3/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (3325)

so send back what you don’t want or need at any time

1-8 x 4 Socket Set Screw Cup Point Alloy

1 1/4-7 x 13 Socket Cap Screw Alloy

5/8-11 x 9 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (75) 3/4-16 Hex Cap Screws 316 Stainless Steel Finished Hex Nuts in 18-85 8 11 x 9 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (75) . 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