Galvanised Steel Round Head Nails Timber Decking Fence Wire Wood 40-200mm

Technical Specification

Our galvanised, zinc-plated steel round head nails (round wire nails for wood) are manufactured from steel and finished with a protective zinc plating, giving a durable barrier against rust so that fences, decking, sheds and outdoor joinery keep their strength and appearance for years. On the five largest, structural-rated sizes (4.2mm diameter and above) the manufacturer's own CE declaration confirms a minimum zinc coating thickness of 5 microns, so the corrosion protection is a genuine, verified spec. The ideal fastener for professional tradespeople and DIY enthusiasts alike.

The nails are supplied across nine diameter/length combinations, from a fine 2.0 x 40mm (1 1/2in) fixing nail right up to a heavy-duty 6.0 x 200mm (8in) structural nail, so there is a size for everything from delicate feather-edge boarding to full timber framing. A smooth shank and sharp diamond point make for fast, easy driving with minimal splitting, while the classic flat, round head is designed to resist pull-through and hold sheet materials firmly in place. Whether you are building a new garden fence, laying a deck or constructing a shed, this range delivers the corrosion resistance and holding power outdoor timber work demands.

• Corrosion-resistant zinc coating: a protective zinc layer guards against rust and decay in damp, harsh outdoor environments, keeping fixings sound.
• Verified coating thickness on structural sizes: the manufacturer's CE declaration confirms a minimum zinc coating thickness of 5 microns on the 4.2mm-and-above sizes, not just a stated finish.
• Heavy-duty performance: manufactured from steel for reliable, consistent holding power across general construction, joinery and fencing work; the CE marked sizes have a declared minimum tensile strength of 450 N/mm2.
• Flat, round head design: resists pull-through and keeps fence panels, decking boards and roofing felt held firmly and securely against the timber.
• Nine sizes in one all-purpose range: from 2.0 x 40mm (1 1/2in) up to 6.0 x 200mm (8in), covering fencing, decking, shed building, roofing and structural timber framing from a single product line, in packs of 10, 20, 50, 100, 200 or 1000.
• Diamond point and smooth shank: engineered for fast, low-effort driving into timber with a reduced risk of splitting the wood.
• CE-marked structural option: the five largest sizes (4.2 x 100mm to 6.0 x 200mm) are CE marked to EN 14592:2008+A1:2012 with third-party notified-body (System 3) oversight, for use in structural connections of load-bearing wooden elements.
• Imperial equivalents throughout: every metric diameter and length is quoted alongside its inch equivalent, making it easy to match against existing timber, drawings or older fixings.

Structural Certification (4.2mm Diameter and Above)

The five largest sizes in this range (4.2 x 100mm, 4.6 x 125mm, 5.0 x 150mm, 6.0 x 175mm and 6.0 x 200mm) are manufactured to a declared minimum tensile strength of 450 N/mm2 and carry CE marking under the harmonised structural timber fastener standard EN 14592:2008+A1:2012, with third-party notified-body oversight (System 3 assessment) for use in structural connections of load-bearing wooden elements. For each of these diameters the declaration states characteristic values for yield moment, withdrawal, head pull-through and tensile capacity, with reaction to fire class A1. The four smaller sizes (2.0 x 40mm to 3.4 x 90mm) are for general fixing and joinery, so use the size table above to match the right nail to the job.

Typical Applications

This is a genuinely all-round timber range for a wide variety of indoor and outdoor tasks, and the nine sizes are spread so that builders, fencers, carpenters and DIYers alike can find the right nail without moving to a different product line:

• Fencing and gates: securing fence posts and rails, feather-edge and overlap boarding, gravel boards and gate battens.
• Decking and outdoor flooring: fixing deck boards and joists where a flat, round head is wanted to sit flush against the board face.
• Shed and outbuilding construction: covers cladding, framing and roofing felt battens, with roofing felt in particular benefiting from the round head's resistance to pull-through in windy conditions.
• Structural timber framing: the CE-marked 4.2mm-and-above sizes are suited to load-bearing connections in timber frames, stud walls and heavier outdoor structures, where the EN 14592 certification and declared tensile strength matter.
• General landscaping and garden joinery: raised beds, garden furniture, pergolas, trellis and general outdoor repair work, where corrosion resistance matters.
• Trade and DIY repair work: replacing rusted bright nails in existing outdoor timber, or general maintenance where a reliable, weather-resistant fixing is needed on hand for a range of jobs.

Zinc-Plated Finish for Exterior Timber Work

These zinc-plated nails are specifically designed for exterior use, giving the weather protection outdoor timber work needs to stand the test of time. The zinc-plated finish is well suited to general outdoor fencing, decking and shed timber.

Fitting & Installation Guidance

• The sharp diamond point and smooth shank are designed to drive straight into timber with a hammer, with no pre-drilling needed for the general-purpose sizes.
• Drive the flat, round head flush with the timber surface so it seats fully against boarding, fencing or roofing felt without crushing the surrounding wood fibres.
• Match the nail length to the timber thickness being fixed, allowing sufficient penetration into the receiving timber for a secure, long-term hold.

Choose the professional standard for all your outdoor timber work.

Common Questions

• Which length do I need? Nine lengths run from 40mm nails for wood (1 1/2in) up to 200mm (8in) long nails for wood, including 100mm nails (4 inch nails) and 150mm 6 inch nails for wood. Match the nail length to the timber thickness being fixed, allowing enough penetration into the receiving timber for a secure, long-term hold.
• Can I use them outdoors? Yes. The protective zinc plating gives a durable barrier against rust for fences, decking, sheds and outdoor joinery.
• What pack sizes are available? Every size comes in packs of 10, 20, 50, 100, 200 or 1000 nails.