Grade 9, Made in the USA, Yellow Zinc Click For More
L9® High Tensile 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® components are fabricated from high-grade alloy steel AISI 8640H on state-of-the-art equipment. All hex cap screws are tested to meet ASTM F606 standards for hardness, classification, fit and elongation. Plating for bolts is Yellow Zinc with a .0002" thick minimum to ASTM B633 Type 2 Class 5 SCI. 180,000 psi minimum tensile strength.