SPAX Decking Screws 6x100mm A4 316 Stainless Steel are the premium marine-grade choice for the most demanding decking applications. The 100mm length and 6mm diameter deliver exceptional holding strength for extra-thick hardwood boards, double-layer decking, and heavy structural applications in coastal environments.

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 maximum shear strength and holding power.
• 100mm length — maximum penetration depth for the strongest possible connection in thick timber members.
• 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.
• CUT Point — no pre-drilling required on most timbers.
• Box of 200 — great value for large projects.

Ideal Applications

The 6x100mm A4 316 is the heavy-duty choice for extra-thick hardwood decking, double-layer decking, jetties, boardwalks, marine structures, and any application where maximum penetration depth and marine-grade corrosion resistance are both required.

Specifications

• Length: 100mm
• Diameter: 6mm (12G)
• Head Type: Cylindrical Head
• Drive: T-Star Plus T25
• Material: A4 316 Stainless Steel (Marine Grade)
• Quantity: Box of 200
• SKU: 0538000601003

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