Ametalin Cap Nails™ Box of 250

Ametalin Cap Nails are collated strips of ten nails, each with a 25 mm impact resistant polymer cap on a 25 mm ring shank galvanised nail. Box of 250, supplied as 25 strips.

Why a cap rather than a staple

A staple holds a membrane by two thin wire legs. Ametalin put the holding power of a cap nail at over twenty times a plain nail or staple, because the cap spreads the wind load across 25 mm of membrane instead of concentrating it on a slit. On an exposed site, or on a frame that will stand wrapped for weeks before the cladding arrives, that is the difference between a wrap that is still on the wall and one that has torn off at every fixing.

It also seals the hole it makes

The cap sits over the penetration, so the fixing point stays sealed against air, vapour and water rather than becoming a leak in the barrier.

Timber framing

These are for timber. Fix at 300 mm centres on a timber framed cavity wall and 150 mm centres direct to stud, before the cladding goes on. On a foam cored product such as ThermalBreak 7, drive the cap so it holds without crushing the foam. For steel framing, use Double Sided Fixing Tape instead.

How to use the strip

Take one strip of ten from the box, place the point of the last cap nail where the fixing goes, centre the cap on the stud, tap to start then drive it home, and twist the rest of the gang off. End tabs let you use the last cap in the strip.