SPAX MDF & Finishing Trim Screws are engineered for precision, strength, and clean finishes in woodworking, carpentry, and interior trim projects. Designed to prevent splitting in dense wood, MDF, Medium Density Fiberboard, hardwood trim, baseboards, door jambs, and cabinetry, these screws offer reliable holding power and professional-grade performance. Ideal for fine woodworking where appearance and durability matter most. The razor-sharp 4CUT point eliminates the need for pre-drilling, even in dense MDF or hardwoods, helping prevent splitting and ensuring clean, accurate fastening. Paired with SPAX's patented thread serrations, these screws drive faster with less effort—reducing torque, easing strain on power tools, and extending battery life for professional installs. The low-profile small trim head with cutting ribs and nibs allows the screw to countersink flush, delivering a clean, professional finish in visible applications like cabinetry, molding, and fine furniture. The T-STAR plus drive system offers superior bit engagement, preventing cam-out and stripping for a secure, slip-free installation every time. SPAX MDF screws are tested and recognized for use in untreated and above-ground pressure-treated lumber in interior dry or damp environments (AWPA UC1-UC2), offering exceptional versatility across indoor projects. From cabinet installation and furniture assembly to molding and millwork, SPAX trim screws are trusted by pros and DIYers alike for their performance, durability, and ease of use. SUMMARY OF PRODUCT SPECS: Main Material: Carbon Steel / Drive Size: T15+ / Free Bit Included? Y / Drive Type: Torx T-Star Plus / Head Type: Trim Head / Head Size: 0.230"" / Partial Thread / Thread Length: 1.060"" / Screw Length: 1-1/2"" / Screw Width: #6 / Finish Coating: Clear and yellow zinc coatings are tested for use in untreated and pressure-treated lumber for above-ground interior dry/damp applications (AWPA UC1-UC2).