40 by 40 by 30 Angle bracket

Product Description

The 40 x 40 x 30 mm angle bracket is a heavy-duty L-shaped metal connector. It is designed to reinforce 90-degree joints in timber construction, furniture making, shelving units, and general DIY joinery.

This corner brace features leg lengths of 40 mm on each side with a 30 mm strip width. It provides a broader supporting surface than narrower brackets while remaining compact enough for most applications.

The 30 mm width offers enhanced stability and load distribution compared to standard narrow brackets. This makes the angle bracket ideal for medium-duty applications such as reinforcing pergolas, securing shelving units, stabilising bookcases, and connecting timber beams in shed construction.

40 by 40 by 30 Angle bracket

Whether you are a professional tradesperson or a DIY enthusiast, this bracket delivers reliable support where additional strength is required.

What Do the Dimensions 40 x 40 x 30 mm Mean?

A common question is how to interpret the three numbers.

The 40 x 40 mm measurement refers to the length of the two perpendicular legs that attach to the wooden components. The 30 mm measurement is the width of the metal strip itself.

This configuration provides a wider profile than standard brackets. It offers a larger surface area for screw placement and improved load distribution across the joint.

What Material and Finish Is This Bracket Made From?

The angle bracket is manufactured from high-quality steel with protective coatings for corrosion resistance.

The material is steel or mild steel. Finish options include electrogalvanised, zinc-plated, or hot-dip galvanised. The thickness is 2 mm. The hole diameter is 5 mm. The angle is 90 degrees.

Electrogalvanised finishes offer good corrosion resistance for indoor and sheltered outdoor applications. They provide a durable silver finish that resists rust.

For outdoor or exposed environments, stainless steel options are recommended for maximum corrosion protection.

40 by 40 by 30 Angle bracket

What Are the Pre-Drilled Hole Specifications?

The angle bracket features pre-drilled holes for secure fastening.

The hole diameter is 5 mm. The number of holes is 4, with 2 holes per leg on standard versions. The holes are countersunk and recessed to allow screw heads to sit flush with the bracket surface.

The countersunk design ensures a neat, professional finish. It prevents screw heads from protruding, which is particularly important for visible applications or where items may catch on protruding hardware.

What Fasteners Should Be Used with This Bracket?

While the bracket itself comes ready to install, fixings are generally sold separately.

Recommended fasteners include wood screws for timber-to-timber connections. Bolts with nuts are suitable for applications requiring additional strength. Self-tapping screws are used for metal or aluminium profile applications.

For outdoor applications, use stainless steel or galvanised screws to prevent corrosion. The 5 mm hole diameter provides flexibility for various fastener sizes.

How Do You Install a 40 x 40 x 30 mm Angle Bracket?

Installation of the corner brace is straightforward and requires only basic tools.

First, position the bracket firmly against the inside corner of the two workpieces. Second, mark the screw hole locations with a pencil.

Third, pre-drill pilot holes into the wood to prevent splitting. Finally, secure using appropriate screws, tightening until the bracket is flush with both surfaces.

Use a minimum of one fastener in each leg for basic applications. Use all four holes for maximum holding power in heavier-duty installations.

What Are the Typical Applications?

The angle bracket is versatile and suitable for numerous applications.

For furniture assembly, it reinforces chairs, tables, bookshelves, cabinets, and beds. For shelving units, it secures shelf brackets and supports medium loads.

For timber joints, it stabilises corner joints in light timber structures, pergolas, and garden sheds. For woodworking, it repairs wobbly furniture, picture frames, and drawers.

For aluminium profile systems, it is compatible with T-slot profiles using appropriate T-nuts and screws.

40 by 40 by 30 Angle bracket

What Is the Weight of This Bracket?

The angle bracket is lightweight for easy handling. The weight is approximately 0.07 kg to 0.10 kg per piece, depending on material thickness.

What Pack Sizes Are Available?

These angle brackets are available in various pack quantities.

Multi-packs of 10 pieces are common for DIY enthusiasts and small projects. Individual pieces are available for single repairs or replacements. Bulk packs are available for professional use and large-scale projects.

What Is the Difference Between 30 mm Width and Narrower Brackets?

The angle bracket features a 30 mm strip width. This is significantly wider than standard options.

This wider profile provides enhanced load distribution across the joint for improved stability. It offers a larger surface area for screw placement, allowing for stronger connections. It provides greater resistance to twisting under load compared to narrow brackets. It offers an improved bearing surface for heavier applications such as shelving and timber framing.

For light-duty applications such as small picture frames or decorative assemblies, narrower brackets may suffice. For medium-duty applications requiring reliable support, the angle bracket offers the perfect balance of strength and compact size.