Recessed Star Drive: Zero stripping, with 6 points of contact
4-point 3/8 inches diameter threaded sleeve: provides a secure hold in your wooden frame
Micro-adjustments: allow for an absolutely plumb installation
White Zinc Plated: finish for lasting durability
For Shim Free installation: of wooden doors, windows, insulation, paneling, built-in wall units and cabinets
Eliminates Shimming
Fine adjustments are as simple as the turn of a screw, even after years of use and settling