Corner Plates – Zinc – Box 50

Zinc corner plates are one of those unglamorous bits of metalwork that quietly hold a lot of construction together. Used to reinforce and repair timber joints at 90-degree angles, they are a staple for carpenters, joiners, general builders, and anyone working with stud walls, timber frames, shelving, or furniture repairs. The zinc plating gives them decent corrosion resistance for internal use, and the countersunk holes mean the screw heads sit flush rather than proud of the surface — which matters when you are fitting plasterboard over a studwork frame or finishing off a piece of joinery you actually want to look tidy.

These are available in two sizes: 50 x 50 x 13mm for lighter-duty or tighter applications, and 75 x 75 x 16mm where you need a bit more bearing surface and pull-out resistance. Both come in a box of 50, which is the kind of quantity that makes sense if you are framing a room, building out a stud partition, or just want a stock of them in the van without paying silly money per piece.

Where Zinc Corner Plates Get Used on Site

The 50mm size tends to get used on furniture repairs, internal joinery, stud framework, and anywhere the joint is not carrying a heavy structural load. The 75mm size suits heavier timber connections — think floor framing repairs, larger studwork, or situations where you want more mechanical grip across the joint. Neither size is intended for external use. Zinc plating handles indoor humidity well enough, but if you are building something exposed to weather, you want hot-dipped galvanised or stainless.

Countersunk Holes: A Small Detail That Actually Matters

It sounds basic, but countersunk fixing holes make a real difference in practice. A raised screw head on a corner plate that ends up behind a sheet of plasterboard is just waiting to cause a problem later. Flush fixings mean cleaner assembly, no unexpected bumps under sheet material, and a neater result on visible joinery work. The holes are pre-punched at spacing that suits standard wood screws, so no faffing about with a drill to open them up.

Supplied in a box of 50, these zinc corner plates represent solid everyday value for trade use, site stock, or keeping a sensible quantity on the shelf.