Our 12-point counterbore screws feature 12 drive surfaces for high torque driving. The design provides the same bearing surface as hex or socket head cap screws of comparable size and fit a standard 12-point socket. Generally available in both course and fine threads in diameters from 3/16" to 2" and lengths to 30". Minimum tensile is 170,000 PSI.
Our site will include a full listing of 12-point counter bore screws in the near future. If you have a current requirement or need additional information, please contact us.