Galvanised round wire nails for general timber fixing. Full round head gives solid clamping, medium duty rust protection, and conforms to Eurocode 5 service class 2. Available in a range of sizes and weights.
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Size
Weight
Pack Type
Price
QTY
40 x 2.65mm
2.5kg
TIMtub
£9.83£11.80
50 x 2.65mm
2.5kg
TIMtub
£9.83£11.80
65 x 2.65mm
2.5kg
TIMtub
£9.83£11.80
65 x 3.35mm
2.5kg
TIMtub
£9.83£11.80
75 x 3.75mm
2.5kg
TIMtub
£9.83£11.80
90 x 4.00mm
2.5kg
TIMtub
£9.83£11.80
100 x 4.50mm
2.5kg
TIMtub
£9.83£11.80
125 x 5.60mm
2.5kg
TIMtub
£9.83£11.80
150 x 6.00mm
2.5kg
TIMtub
£9.83£11.80
40 x 2.65mm
2.5kg
TIMbag
£8.78£10.54
50 x 2.65mm
2.5kg
TIMbag
£8.78£10.54
65 x 2.65mm
2.5kg
TIMbag
£8.78£10.54
65 x 3.35mm
2.5kg
TIMbag
£8.78£10.54
75 x 3.75mm
2.5kg
TIMbag
£8.78£10.54
100 x 4.50mm
2.5kg
TIMbag
£8.78£10.54
150 x 6.00mm
2.5kg
TIMbag
£8.78£10.54
40 x 2.65mm
1kg
TIMbag
£3.24£3.89
50 x 2.65mm
1kg
TIMbag
£3.24£3.89
65 x 2.65mm
1kg
TIMbag
£3.24£3.89
65 x 3.35mm
1kg
TIMbag
£3.24£3.89
75 x 3.75mm
1kg
TIMbag
£3.24£3.89
90 x 4.00mm
1kg
TIMbag
£3.24£3.89
100 x 4.50mm
1kg
TIMbag
£3.24£3.89
125 x 5.60mm
1kg
TIMbag
£3.24£3.89
150 x 6.00mm
1kg
TIMbag
£3.24£3.89
40 x 2.65mm
0.5kg
TIMbag
£1.82£2.18
50 x 2.65mm
0.5kg
TIMbag
£1.82£2.18
65 x 2.65mm
0.5kg
TIMbag
£1.82£2.18
65 x 3.35mm
0.5kg
TIMbag
£1.82£2.18
75 x 3.75mm
0.5kg
TIMbag
£1.82£2.18
100 x 4.50mm
0.5kg
TIMbag
£1.82£2.18
125 x 5.60mm
0.5kg
TIMbag
£1.82£2.18
150 x 6.00mm
0.5kg
TIMbag
£1.82£2.18
The galvanised round wire nail is one of those products that holds an awful lot of the built environment together without anyone giving it much credit. Available in sizes from 40 x 2.65mm right up to 150 x 6.00mm, these nails cover the bulk of everyday structural and general timber work where you need reliable holding power and a degree of weather resistance. The full round head distributes the clamping force cleanly across the surface, reducing the risk of the timber splitting or the head pulling through under load.
Galvanising gives these nails medium duty rust protection, making them a solid choice for external and semi-exposed applications where a bright nail simply would not last. They conform to Eurocode 5 and service class 2, which matters when you are working on projects where the fixing specification is being checked. Eurocode 5 covers the structural use of timber, and service class 2 covers conditions where higher moisture content is expected, think covered outdoor structures, unheated buildings, or timber framing where humidity can fluctuate. Not glamorous information, but useful when the building inspector turns up.
Where Galvanised Round Wire Nails Get Used
These are a workhorse fixing used across carpentry, framing, fencing, decking substructure, roofing battens, formwork, and general site timber work. The range of available sizes means you can grab what you need for light carcassing at the smaller end or heavy structural nailing at the larger end without switching product lines. Available in TIMbag or TIMtub formats and in 0.5kg, 1kg, and 2.5kg weights, so you can buy a manageable quantity for smaller jobs or stock up properly for a run of work.
Ordering by weight rather than count is the practical way to buy nails, and the bulk pricing here makes it straightforward to keep the nail bag topped up without making a special trip to the merchant. Stock a couple of sizes, keep a tub in the van, and you are covered for most jobs that come through the door.
Pro Tip: When nailing into timber close to an end grain or edge, use the smaller diameter nail for the given length to reduce the risk of splitting, particularly in dry hardwoods or pre-dried structural timber.
Galvanised round wire nails are used across a wide range of timber fixing tasks on site and in general construction. They are well suited to stud work, roofing batten fixing, fence panel construction, decking frames, sheathing boards, formwork assembly, and general carpentry where the nail will be exposed to moisture or the elements over time. The full round head makes them particularly effective where clamping force matters, such as boarding, cladding, or layered timber construction.
Best For
General timber framing and carcassing
Roofing battens
Fencing and decking substructure
Formwork assembly
Sheathing and cladding boards
Semi-exposed and external applications
Available In
40 x 2.65mm
50 x 2.65mm
65 x 2.65mm
65 x 3.35mm
75 x 3.75mm
90 x 4.00mm
100 x 4.50mm
125 x 5.60mm
150 x 6.00mm
0.5kg, 1kg, 2.5kg weights
TIMbag or TIMtub pack format
Key Properties
Full round head for clamping
Galvanised for medium duty rust protection
Conforms to Eurocode 5
Service class 2 rated
Suitable for moisture-variable environments
Not suitable for: Not suitable for highly corrosive or coastal environments where stainless steel fixings would be the appropriate specification. Not recommended for use in direct contact with treated timber that contains copper-based preservatives, where stainless or hot-dip galvanised nails should be used instead.
Select the nail size appropriate to the timber thickness. As a general rule, the nail length should be two and a half to three times the thickness of the piece being fixed. Drive nails at a slight angle when face nailing for improved holding strength, and pre-drill close to end grain to avoid splitting.
Select the correct nail size based on timber thickness, aiming for nail length of two and a half to three times the top piece thickness.
Check the timber for any splits or checks near fixing points and move the nail position if needed.
Pre-drill pilot holes when nailing close to the end grain or edge of a board to prevent splitting.
Drive the nail square or at a slight angle to maximise holding strength.
Set the head flush or just below the surface using a nail punch where a clean finish is required.
What does service class 2 mean for these galvanised round wire nails?
Service class 2 means the nails are rated for use in conditions where timber moisture content may be higher than in a dry internal environment, such as covered outdoor structures, unheated agricultural buildings, or areas subject to humidity fluctuation. It is a Eurocode 5 classification relevant when a structural specification is in place.
Are these nails suitable for use with pressure-treated timber?
Standard galvanised nails can react with some copper-based preservative treatments used in modern pressure-treated timber, which can accelerate corrosion. For treated structural timber, hot-dip galvanised or stainless steel nails are the safer choice. If in doubt, check the timber supplier's fixing recommendations.
These round wire nails are manufactured from wire rod, formed to a full round head profile and galvanised for medium duty corrosion protection. They conform to Eurocode 5 structural timber design standards and are rated to service class 2, covering environments where timber moisture content may exceed 20 percent due to climatic conditions. Available in wire diameters from 2.65mm to 6.00mm and lengths from 40mm to 150mm.
Finish
Galvanised
Head Type
Full round
Sizes Available
40 x 2.65mm, 50 x 2.65mm, 65 x 2.65mm, 65 x 3.35mm, 75 x 3.75mm, 90 x 4.00mm, 100 x 4.50mm, 125 x 5.60mm, 150 x 6.00mm
Pack Weights
0.5kg, 1kg, 2.5kg
Pack Format
TIMbag, TIMtub
Standard
Eurocode 5
Service Class
2
Corrosion Protection
Medium duty
Size
100 x 4.50mm, 125 x 5.60mm, 150 x 6.00mm, 40 x 2.65mm, 50 x 2.65mm, 65 x 2.65mm, 65 x 3.35mm, 75 x 3.75mm, 90 x 4.00mm
Weight
0.5kg, 1kg, 2.5kg
Pack Type
TIMbag, TIMtub
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