Decking Screws - PZ - Double Countersunk - Exterior - Green

£5.83

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Timco exterior green 4.5×50 mm decking screws feature a double‑countersunk ribbed head and helix shank for flush finish and debris clearance. With a 25° sharp point, PZ2 recess, and up to 500 hours salt spray resistance, these CE‑marked screws deliver fast, secure clamping in softwood decking and landscaping timber applications. Available in boxes of 200. Trade or DIY use.

Size

4.5 x 50 4.5 x 60 4.5 x 70 4.5 x 80

Quantity

200

Product variants

Delivery and Shipping

Place your order before 3pm for next working day delivery.

Please note: Additional delivery charges may apply for Northern Ireland, Isle of Wight, Isle of Man, Isles of Scilly, Scottish Highlands & Islands, and Channel Islands. We will contact you to inform you of any additional costs once your order is received, or you can call us on 0800 111 4898 beforehand to confirm.

Description

4.5 × 50 mm Pozi‑Drive Green-Plated Timber Screws

Timco exterior decking screws offer fast, secure fastening for softwood and treated timber decking. Finished in green organic plating with up to 500 hours salt spray resistance, they combine a sharp 25° point and helix shank for fast starts and cleaner insertion. The double‑countersunk ribbed head ensures a flush finish while minimizing wood splitting—driven with a PZ2 bit for precision and control. :contentReference[oaicite:2]{index=2}

Key Features & Benefits

500 hr Salt Spray Rated: Reliable corrosion resistance in exterior/urban applications.
Helix Shank Design: Removes timber debris during installation for superior clamping power.
25° Sharp Point: Provides rapid bite and accurate thread entry without pre‑drilling in softwoods.
Double-Countersunk Ribs: Heads seat cleanly below surface for a tidy finish.
PZ2 Drive: Standard Pozidriv recess for efficient torque transfer and reduced cam‑out.

Product Details

Diameter: 4.5 mm (Gauge 9)
Length: 50 mm (thread length approx. 32 mm)
Material: Carbon steel, green organic plated finish
Corrosion Rating: ≈500 hr salt spray resistance (Rating 3 for low-salt environments)
Complies with: BS EN 14592:2008 standard
Pack Options: Box of 200; Tub of 2,000 pieces (product code 50TDECK for 50 mm size)
Head Diameter: ≈8.76 mm; Point Type: 25° sharp; Recess: PZ2

Typical Uses

Securing softwood decking boards to timber joists
Outdoor joinery and landscaping timber fixings
Construction of balustrades, steps, cladding, and other wood-to-wood applications
Recommended for flush, clean installations with minimal surface disturbance