Reinforcing rib for very high bending strength: each bracket is pressed from 2.5mm steel with a rib across the corner, and that rib is what gives the bracket its very high bending strength, for load-bearing 90 degree timber joints that have to carry load and stay square. Galvanised steel with a zinc coating of 275 g/m² on both sides, for high corrosion resistance; fire reaction class A1, non-combustible. Size 150 x 150 x 65mm: arms (A and B) 150mm (5.91in) and 150mm (5.91in), width (C) 65mm (2.56in), 2.5mm thick, holes 28 × ø5, 3 × ø11, 1 slot 11 × 31 (mm). This listing is a pack of 5 brackets. Load data: 18.42 kN, characteristic load-carrying capacity of the joint, with ring shank nails 4mm in diameter and at least 40mm long, in C24 timber or better. CE marked under a European Technical Assessment. Wide, well-spaced hole pattern: fix with nails, wood screws, bolts or concrete anchors, in a standard detail or a joint designed from scratch. Also known as corner braces, corner brackets for wood, L brackets or 90 degree brackets: for post to beam, joist to beam, wall framing and frame corners; the 70mm to 105mm sizes also join timber to concrete or to steel.