GRK’s adjustable Top Star™ Shim Screw, is in fact a screw within a screw that allows you to install wooden doorsor windows without the use of shims. The quick and easy system reduces labor and allows for hassle free adjustments to ensure plumb installation. Suited to meet the needs of both professional contractors and DIYers making the job easier for one person. Fine adjustments are as simple as the turn of a screw, even after years of use and settling.

Applications

• For shim free installation of wooden doors, windows, insulation, paneling, built-in wall units and cabinets

Features

• Recessed Star Drive for zero stripping, with 6 points of contact
• 4-point 3/8" diameter threaded sleeve provides a secure hold in your wooden frame
• Micro-adjustments allow for an absolutely plumb installation
• Use with GRK's Top Star™ Crown and T-15 Star bit system
• White Zinc Plated finish for lasting durability

Includes

• 1 Crown
• 1 Bit

100 pcs/ctn