GRK FIN/Trim Screws are an excellent choice for most fine carpentry applications, as well as window extension jambs, joining cabinets, and more. A combination of the smallest screw head available and code-approved structural performance means the most secure, concealed fastening in the industry. FIN/Trim Screws have a Climatek Coating for installation in both interior and exterior conditions where exposure to moisture is intermittent and is code-approved for use in treated lumber.
GRK's Trim Head Screws are an excellent choice for most fine carpentry applications, as well as window extension jambs and more. These trim head screws have the smallest screw head available with screw lengths from 1-1/4-Inch to 5-Inch. Most material splitting is prevented becasue of the Trim Head screw's exceptionally small head and the W-cut thread design. Pre-drilling is only necessary if the building material's limitations require a pilot hole to be drilled, as in hardwoods like Mahogany and Ipe'.