8G-10 x 50 mm Square Drive Trim Head Decking Screw

The Square Drive Trim Head Decking Screw A4 (316) is a stainless steel decking screw for coastal and marine timber decking installation. Supplied in A4 / 316 Stainless Steel, it is suited to professional installation and long-service applications in marine, coastal, and industrial environments.

Where this product is used

• Coastal and waterfront timber and composite decking installations.
• Marine pontoons, jetties, and boardwalk decking.
• Outdoor decking where rust staining from standard fasteners is unacceptable.

Key specifications

Selecting the right option

Select screw length so that at least two-thirds of the screw engages the bearer below the decking board. For hardwood, pre-drill to prevent splitting. Choose 316 grade for all coastal and waterfront applications — 304 may stain in severe salt environments.