5/16-18 L9 Hex Nut Alloy Cadmium Yellow and Wax Coated Domestic USA (4000) . L9® High Tensile Strength Hex Nuts 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® nuts from AISI alloy steels.
L9® components are fabricated from high-grade alloy steel AISI 8640H on state-of-the-art equipment right here in the USA.
L9® Hex Nuts are for use with corresponding L9® Hex Cap Screws only.