GRK's Trim Head screws are an excellent choice for most fine carpentry applications, as well as window extension jambs and more. The Trim Head screws have the smallest screw head available; with screw lengths of 2". Most material splitting is prevented because of the Trim Head screw's exceptionally small head and the W-Cut thread design. 100 count Recessed star drive zero stripping, with 6 points of contact Trim head for a clean finished look Reverse threads eliminate mushrooming W-Cut low torque and faster drive Zip-Tip no pre-drilling, faster penetration ESR-3201 approved for structural application Case hardened steel for high tensile, torque and shear strength For interior/exterior use Climatek coating is AC257 code approved for use in treated lumber Package type: Handy-Pack. Specifications Series: RT Composite Type: Exterior & self-tapping Screw size: #8 Length Under Head: 2 in Head Style: Trim.