Stainless Steel Decking Screws – PZ - Double Countersunk (A2 Stainless)Stainless Steel Decking Screws

4.5 × 50 mm & 65 mm Pozi‑Drive Decking Screws in A2 Stainless Steel (Pack 250)

Timco classic A2 stainless steel decking screws provide exceptional corrosion resistance for outdoor environments—perfect for use with softwood, tropical hardwood, cedar, or green oak. Featuring a double‑countersunk ribbed head, helix shank to remove timber debris, and a single-slash sharp point for easy penetration, these screws deliver strong clamping force and minimal splitting even near edges. Ideal for decking platforms and joinery in coastal or corrosive settings.

Key Features & Benefits

• A2 Stainless Steel (Grade 304): Excellent corrosion performance in coastal or corrosive environments. Corrosion rating up to 4 (urban/industrial).
• Double-Countersunk Head with Ribs: Self-countersinks for flush finish and reduces head shear on installation.
• Helix Shank: Clears timber debris, improves grip and clamping performance. 
• 25° Single Sharp Slash Point: Low torque entry reduces splitting risk near edges.

Product Details

• Sizes: 4.5 × 50 mm and 4.5 × 65 mm lengths available
• Thread Length: Approx. 32 mm (50 mm) or 42 mm (65 mm) depending on model
• Driver Bit: PZ2 Pozi‑recess included in tub packaging
• Pack Quantity: 250 screws per tub/canister
• Standard Compliance: CE-marked, BS EN 14592:2008 compliant 

Typical Uses

• Installing timber decking in softwood, oak, cedar, or composite boards
• Construction of outdoor platforms, garden structures near salt-laden environments
• Fixing into preservative-treated timber or corrosive-resistant hardwoods
• General use where durability and long-term performance outdoors are required