*Listed price shown includes 20% discount on all GRK products.

GRK's FIN/Trim™ Head screws are an excellent choice for most fine carpentry applications and more. They are also ideal for the installation of window extension jambs. The FIN/Trim™ Head screws have the smallest screw head on the market.

The FIN/Trim™ Head screw's exceptionally small head, along with the W-Cut™ thread design, prevent most material splitting. Pre-drilling is only necessary if the building material's limitations require a pilot hole to be drilled.

FIN/Trim™ Head screws are self-tapping screws with a W-Cut™ thread design, ZipTip™, and Climatek™ coating.

FOR BEST RESULTS, TRIM™ SCREWS SHOULD BE DRIVEN AT HALF SPEED.

TO PROLONG THE LIFE OF THE #10 BIT,
DO NOT USE AN IMPACT DRIVER ON THE #8 (4.0) TRIM™ HEAD SCREW

Patented W-Cut™ Thread Design and ZipTip™

The W-Cut™ is a patented thread design which acts like a saw blade cutting through any fibrous materials with ease. This unique design reduces the amount of torque required to install the screw, and maintains a high pull out strength. By cutting through, rather than pressing fibers aside, the W-Cut™ also reduces material splitting.

The W-Cut™ design is available on all GRK screws, 30mm and longer.

GRK's ZipTip™ is designed for fast starts in any fibrous materials.