SiDAX Exterior Timber Frame Screws 8mm Hex Head Green (Box of 50)

Uncompromising Structural Power

When assembling heavy timber frames, pergolas, or retaining walls, you need a fastener that won't cam out or strip under immense pressure. The SiDAX Timber Screw features a solid 8mm hexagon head, allowing you to use a socket driver to apply massive amounts of torque safely. Once driven, the deep 40° single thread bites aggressively into the timber, providing a secure, structural hold that resists shear forces and prevents joints from pulling apart over time.

Intelligent Anti-Split Technology

Driving thick structural screws often risks splitting the timber, which ruins the structural integrity of your project. This screw is engineered to prevent that entirely. It starts with a Type 17 cutter tip (often called a slash point), which acts like a drill bit to carve its own pilot hole. Further up the shank, specialized knurling grinds away excess wood debris, slightly widening the hole for the unthreaded upper section. This drastically reduces the friction on your drill battery and allows the screw to clamp the two pieces of timber tightly together without causing the wood to bulge or split.

1000-Hour Ruspert Protection

Landscaping timber is almost always pressure-treated with chemicals that can be highly corrosive to standard zinc screws. Furthermore, outdoor structures are constantly exposed to rain and varying temperatures. The SiDAX screw is fortified with a premium Green Ruspert exterior plating. This advanced coating has been independently tested to survive 1000 hours of direct salt spray, ensuring your fasteners will not rust, degrade, or fail under harsh environmental conditions. As an added bonus, the green hue blends seamlessly with treated wood for a professional, unobtrusive finish.

Key Features

• Type 17 Slash Point: Actively cuts and clears wood fibers as it drives, drastically reducing the risk of the timber splitting, even when driving close to the edge.
• Knurled Shank: Strategically placed knurling clears debris from the hole and slightly widens the channel above the thread, reducing driving friction and improving clamping force.
• Deep 40° Single Thread: Provides exceptional pull out resistance and secure anchoring in both softwoods and dense landscaping timbers.
• Aesthetic Integration: The green exterior plating camouflages perfectly against standard pressure treated sleepers and joists.
• Heavy Duty Trade Pack: Supplied in a box of 50 pieces, perfect for large structural frames and retaining walls.