Masonry Nails – Medium Gauge – 3.0mm – Box 100

These 3.0mm medium gauge masonry nails are hardened carbon steel fixings designed to be driven directly into masonry, concrete blocks, and brickwork without pre-drilling. If you have ever tried hammering a standard wire nail into a block wall and watched it fold like a wet crisp, you will appreciate what a properly hardened masonry nail actually does. The bright zinc plating keeps them suited to internal use, and the countersunk head sits flush once driven home — no proud head catching on timber or plasterboard.

The 35-degree sharp point is ground to cut into masonry cleanly rather than just battering its way through. That matters on harder substrates like dense concrete block, where a blunt or poorly formed point will crack the face or deflect off the aggregate. These nails go in straight and stay put.

Where 3.0mm Medium Gauge Masonry Nails Get Used

Medium gauge is the right choice for the vast majority of everyday masonry fixing jobs. At 3.0mm diameter, these sit between lighter pin nails and the heavier 4.0mm gauge, giving you solid holding power without the risk of splitting lighter blockwork or thin render keys. The range of lengths — from 25mm up to 80mm — means you can match the nail to the job rather than making do.

Hardened Steel Makes the Difference

The hardening process is what separates a masonry nail from an ordinary bright wire nail. The carbon steel is heat-treated to significantly increase surface hardness, allowing the nail to withstand the hammer blows needed to penetrate concrete and block without bending, mushrooming, or snapping. That hardness also means they resist withdrawal forces well once set, which is what you actually need when fixing battens, frames, or conduit clips to a wall.

Sold in boxes of 100, these are a straightforward stock item for any trade bag or van. Competitively priced and available in nine sizes, so you can pick the exact length for the substrate and fixing depth you are working with.