Pcs Metric Hex Head Bolts and Nuts and Washers Set, Hex Socket M2 M3 M4 M5 1680
Hex Socket Head Cap Screws Bolts and Nuts and Washers Kit: The thread is tight and the force is uniform, it is not easy to deform and slide during rolling and installation, it can withstand greater loads, and it can ensure the stability of the installation.