WOOD Screw

● Lag screws (commonly called lag bolts) are essential for heavy wood-to-wood connections where ordinary screws lack the necessary shear strength. They're routinely specified for securing deck ledger boards to house frames.

● Sinsun's lag screws feature full-length sharp threading on grade-5 steel that bites deep into wood fibers, delivering pull-out resistance exceeding 1,800 pounds. Available in diameters from 1/4" to 3/4" and lengths up to 12", they're manufactured with hexagonal heads for full wrench torque application and self-tapping points that eliminate the need for pilot holes in most applications. The corrosion-resistant zinc plating ensures lasting performance in outdoor environments

● Sinsun black wood screws deliver the discreet durability that elevates any wood project. Our specialized black oxide and phosphate coatings aren't just about looks - they provide serious corrosion resistance while maintaining a consistent, non-reflective finish that hides seamlessly in your work.

● From black pan head wood screws creating sleek lines in modern furniture to decorative black wood screws adding subtle accents to cabinet installations, these fasteners are designed to disappear into your design.

● Our black outdoor wood screws and black exterior wood screws feature enhanced corrosion protection that withstands seasonal changes and moisture exposure. For heavier applications, black structural screws provide the shear strength needed for deck framing and pergola construction

● Sinsun's 3 inch construction screws provide the necessary penetration for securing wall plates to floor systems and connecting multiple layers of dimensional lumber. These construction wood screws are specifically engineered for assembling timber frames, installing roof trusses, and building structural sheathing .

● What sets our screws apart is their ability to drive straight without pilot holes, The sharp self-tapping tip cuts through treated lumber without splitting, and the corrosion-resistant coating on our exterior construction screws stands up to jobsite moisture without staining the wood. Contractors report using 30% fewer screws thanks to their consistent performance and significantly reduced installation time compared to traditional framing methods.

● Sinsun deck screws are specifically formulated to standing up to decades of outdoor exposure.

● Our 3 inch decking screws provide the ideal length for securing 5/4 decking boards to joists while maintaining full thread engagement.

● The key lies in our dual-protection coating system that withstands 1000 hours in salt spray testing - 5x longer than standard zinc coatings. The sharp self-drilling points install flush without pre-drilling, while the deep-cut threads provide 50% more withdrawal resistance in wet lumber.

● Sinsun TEK screws eliminate drilling steps by cutting directly through steel brackets,Our TEK wood to metal screws solve common installation challenges where traditional fasteners fail. They're specifically designed for securing wooden frames to steel beams, any application requiring direct fastening through metal brackets into wood substrates without pre-drilling.

● Available in #8 through #12 gauges with lengths from 2 to 6 inches, these screws feature a self-contained drill point that maintains sharpness through 1/8-inch steel before the threads engage the wood. The six-point Torx drive prevents cam-out under high torque

● Sinsun screws are built specifically to handle plywood's unique challenges, preventing lifting and splintering for a clean, professional result.

● Plywood's glued layers are prone to splitting when a screw drives in. Sinsun's sharp self-tapping tip and fine threads act like a hot knife through butter, gently pushing fibers aside rather than forcing them apart. This means you can drive them within 1/4 inch of the edge without that dreaded crack, a common headache with cheaper screws.

● It's not just about getting the screw in; it's about it staying put. Our corrosion-resistant coating isn't just a fancy name—it's tested to withstand over 96 hours of salt spray, equivalent to years of use in a garage or humid basement.

● Particle board demands specialized fasteners that can grip its granular structure without causing splitting or stripping. Sinsun's chipboard screws are specifically designed to create strong, lasting connections in engineered wood materials.

● Our Particle board screws feature a unique dual-thread design. The alternating high-low thread configuration provides 200% more thread engagement in the material, while the specially angled threads prevent material separation.

● The sharp self-tapping tip starts cleanly without pilot holes and continues smoothly through the board's density variations. Our #6 and #8 gauge screws maintain consistent driving torque without the common issue of thread stripping that plagues standard wood screws in particle board.

● Sinsun floorboard screws are engineered to bite deep and stay put, eliminating the creaks and groans that come from loosening fasteners.

● Sinsun's aggressive, self-drilling tip gets through the tough wood fibers without the need for pre-drilling in most cases. This means you can move faster during installation, whether you're securing a softwood subfloor or nailing down that final strip of oak.

● Ordinary screws can work themselves loose over thousands of footsteps, leading to that familiar squeak. We use a combination of full-length, sharp threads and a corrosion-resistant coating that matches the lifespan of your flooring.

● Sinsun large head screws deliver unmatched holding power through.

● These washer-head screws are specifically designed for applications where standard screw heads would sink or pull through the material. They're the ideal solution for attaching metal brackets to wooden frames.

● Featuring a head diameter 2.5 times larger than conventional wood screws, our large head design provides 40% greater surface contact to prevent pull-through in softwoods and composite materials. The integrated washer design creates a weather-tight seal in outdoor applications, while the sharp self-tapping point ensures smooth installation without pre-drilling. Available in #10 through #14 gauges

● Sinsun wood screws, designed specifically for door hinges, ensure quiet and long-lasting performance.From bedroom to kitchen doors that open and close dozens of times a day, loose screws can cause noise and potential safety issues. Sinsun wood screws feature a thickened shank and finely spaced threads, proven to withstand over a decade of frequent use.

● Sinsun screws come with a rust-resistant coating, maintaining stability even in humid conditions. The self-tapping design allows quick and secure installation without slipping. Tested under 300 daily open-close cycles, these screws consistently hold firm, reducing maintenance needs.