SPAX Decking Screws 6x50mm A4 316 Stainless Steel are the premium marine-grade choice for decking in coastal and high-moisture environments. A4 316 stainless steel offers significantly superior corrosion resistance compared to A2 304, making these screws the right choice where salt air, moisture, and chemical exposure are a concern.

Key Benefits

• A4 316 Stainless Steel — marine-grade stainless with superior corrosion resistance. The go-to choice for coastal, waterfront, and high-moisture decking applications.
• 6mm diameter (12G) — heavier gauge for increased shear strength and holding power.
• T-Star Plus Drive (T25) — exclusive to SPAX. Provides a positive, secure bit engagement for better driving torque and reduced cam-out.
• Cylindrical head (7mm) — countersinks cleanly into timber with minimal splitting, leaving a neat, professional finish.
• Fixing thread — locks the decking board firmly in place, minimising cupping, squeaking, and movement over time.
• SPAX Ground Serration Thread — allows quick and easy fastening with reduced driving torque.
• CUT Point — no pre-drilling required on most timbers.
• Box of 200 — great value for decking projects.

Ideal Applications

The 6x50mm A4 316 is ideal for coastal and marine decking, pool surrounds, jetties, boardwalks, and standard hardwood decking boards in high-moisture environments where maximum corrosion resistance is essential.

Specifications

• Length: 50mm
• Diameter: 6mm (12G)
• Head Type: Cylindrical Head
• Drive: T-Star Plus T25
• Material: A4 316 Stainless Steel (Marine Grade)
• Quantity: Box of 200
• SKU: 0538000600503

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