ITW GRK Fasteners 17079 Finishing Trim Head Screws #8 By 2-1/2 Inch Reverse Thread 100 Pack

Zero stripping with 6 points of contact. recessed star srive eliminates mushrooming. trim head for a clean finished look. w-cut: low torque, smoother drive zip-tip for no pre-drilling, faster penetration. esr-3201 approved for structural application. case hardened steel for high tensile, torque and shear strength. climatek coating is ac257 code approved for use in treated lumber. for interior and exterior use.