4inch Mdf screw

4inch Mdf screw Key Features: • 4mm diameter with 100mm (4 inch) length for thick MDF panels and multi-layer constructions • Self-drilling CUT tip or Type 17 cutting point eliminates need for pre-drilling in most applications • Partial thread design with smooth shank creates maximum clamping pressure between components • Countersunk head with ribbed underside for flush, gap-free installation • T-Star (Torx) T20 drive provides superior torque transmission and prevents cam-out • Hardened steel construction with zinc-plated or WIROX/A3K corrosion-resistant finish • Fine thread geometry with thin core diameter minimizes splitting and bulging in dense MDF • Suitable for furniture assembly, cabinet making, subflooring, and woodworking projects • ETA-11/0190 approved for load-bearing structures on select models • Available in environmental classifications C1 (indoor dry) and C2 (wet areas/covered outdoor)