This jaw screw set consists of 8 hardened and tempered screws specifically designed for use with the Precision 100 woodturning chuck and jaws. They are plated to prevent corrosion and have an Allen head to prevent slippage when tightening. It is recommended that the screws have a thin coat of machine and tool wax (product code R3110) applied prior to fixing, to ensure that the screws can be removed easily when changing jaws. ©