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- AnchorMark Decking Screw A4 316 S2 5.5x38 TTM\BiMetal x 100
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AnchorMark Decking Screw A4 316 S2 5.5x38 TTM\BiMetal x 100
AnchorMark Decking Screw A4 316 S2 – 5.5 x 38mm TTM/BiMetal (Box of 100)
The AnchorMark 5.5 x 38mm A4 316 S2 Decking Screw with TTM/BiMetal construction is engineered for fast, secure fastening of timber to steel or aluminium subframes—especially in tight-clearance or low-profile applications. Compact yet powerful, this screw combines an A4 (316) stainless steel body for exceptional corrosion resistance with a hardened carbon steel drill tip for clean, efficient drilling into metal without pre-drilling.
Perfect for marine, coastal, or outdoor installations, it features a Torx-compatible S2 drive for slip-free driving, excellent torque control, and a neat, professional finish.
Key Features:
Size: 5.5mm x 38mm
Material: A4 316 stainless steel body with BiMetal hardened tip
Drive Type: S2 Torx/Star
Type: TTM (Timber-to-Metal) self-drilling screw
Application: Ideal for timber to steel or aluminium joists
Finish: Corrosion-resistant, suitable for marine or outdoor use
Quantity: 100 screws per box
Recommended For:
Thin decking boards or low-profile timber installations
Coastal boardwalks, jetties, or aluminium subframes
Projects requiring minimal screw length with maximum grip
The 5.5 x 38mm TTM screw delivers compact performance and long-lasting durability where timber meets metal in demanding environments.
Details
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Diameter:5.5mm
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Length:38mm