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. Our FIN/Trim™ Head screws have the smallest screw head on the market; With sizes available from 1"1/4(30 mm) to 5"(125 mm), users have plenty of choice.

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. (Always consult wood supplier's / manufacturer's recommendations)

FIN/Trim™ Head screws come with Climatek™ corrosion protection. This will come in very handy when using our Trim™ screws in vinyl or composite decking.

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 TRIM™ HEAD SCREW