Material: Forged with 12.9 grade carbon steel material, black oxide finish, with a high load rate,Made of high hardness and wear resistance. Compact and sturdy, built to last.
Advantage: Left-hand reverse thread design, The hex head is not easy to slip during the rotation process. The flange part acts as a flat washer, which can be locked more firmly.
Note: To tighten a reverse threaded screw, please turn it in counterclockwise. The bolt is a standard part and should be measured with a standard vernier caliper.
After-sale guarantee: what we have been pursuing is customer satisfaction. If you are not satisfied with the product, please contact us! We will show you our sincere attitude and satisfactory solution.
