AnchorMark Decking Screw A4 316 S2 5.5x70 TTM\BiMetal x 100

Stock Code:
663661
Price:
$130.35

AnchorMark Decking Screw A4 316 S2 – 5.5 x 70mm TTM/BiMetal (Box of 100)

Engineered for demanding environments, the AnchorMark A4 316 S2 Decking Screw (5.5 x 70mm) with TTM/BiMetal design is the premium choice for fastening timber decking to steel or aluminium substructures. Featuring a sharp self-drilling point and a dual-material BiMetal construction, these screws combine stainless corrosion resistance with steel-strength performance.

Crafted with an A4 (316) stainless steel body for maximum corrosion protection—especially in coastal or marine environments—paired with a hardened drill tip for effortless penetration into metal substrates. The S2 drive recess provides secure bit engagement and smooth installation with reduced cam-out.

Key Features:

  • Size: 5.5mm x 70mm

  • Material: A4 316 stainless steel body with hardened carbon steel drill tip

  • Type: TTM (Timber-to-Metal) / BiMetal construction

  • Drive: S2 – Torx/Star for precise, slip-free driving

  • Application: Ideal for decking timber to steel or aluminium subframes

  • Finish: Suitable for outdoor, coastal, and marine environments

  • Quantity: 100 screws per box

Applications:

  • Timber decking to steel frames

  • Boardwalks, jetties, or pergolas in marine zones

  • Long-term outdoor timber-to-metal fastening

Built for strength, speed, and corrosion resistance, these AnchorMark screws deliver unmatched performance where timber meets metal.

Details

  • Diameter:
    5.5mm
  • Length:
    70mm