• A4 (316) stainless steel shank. A corrosion rating of 5 means it holds in coastal and industrial air where standard fixings rust and stain.
• Colour-matched polymer head. Moulded to blend into fascias, soffits and trims so the fixing barely shows.
• UV stable and impact resistant. Keeps its colour outdoors and takes the hammer without cracking.
• Safe in corrosive timbers. Suits oak and cedar, where an ordinary nail reacts with the tannins and streaks the wood.
• 12mm head on a 3.2mm shank. A wide head seats thin board and trim without pulling through.

Polymer headed nails are the tidy way to fix external roofline and timber where the head is on show. The colour-matched head disappears against the board and the stainless shank shrugs off the weather.

• Fixing uPVC and coated soffits and fascias.
• Roofline trims, bargeboards and external cladding.
• Decorative external timber and heritage joinery.
• Oak and cedar boards that stain around a standard nail.

• Brand: TIMCO
• Material: A4 (316) austenitic stainless steel
• Head: Polymer, UV stable and impact resistant
• Head diameter: 12mm
• Shank diameter: 3.2mm
• Colour: Oak (RAL 8001)
• Sizes: 50mm x 3.2mm
• Corrosion rating: 5 (coastal and industrial)
• Substrates: External timber, including corrosive woods such as oak and cedar
• Product codes: PN50O

What are polymer headed nails?

They are A4 stainless steel nails with a moulded, colour-matched plastic head. The head hides the fixing against the trim and stands up to UV and weather, while the stainless shank resists corrosion. That makes them the usual choice for visible external roofline work.

What are polymer headed nails used for?

Fixing soffits, fascias, roofline trims, cladding and decorative external timber, where you want the fixing to blend in and last outdoors. They are especially good on oak and cedar, which stain around ordinary nails.

Can I use them in coastal or exposed locations?

Yes. The A4 (316) stainless steel gives a corrosion rating of 5, the top of the scale, which covers coastal and industrial atmospheres with salt in the air.

What size polymer headed nail do I need?

For most fascia and soffit boards a 50mm nail suits, with 65mm for thicker sections and 40mm for lighter trim. Every size runs on a 3.2mm shank with a 12mm head.

Will they stain oak or cedar?

No. Standard nails react with the tannins in oak and cedar and leave dark streaks. The stainless shank avoids that, so the timber stays clean.