Bolts & Threaded Bar

Learn more about bolts and threaded bars

A bolt and a length of threaded bar basically do the same job. They hold parts together under load, but they suit different situations. A bolt has a formed head and a fixed length, which makes it quick to install for brackets, steelwork connections and general assembly. Threaded bar, sometimes called threaded rod, is much longer and threaded along its full length so you can cut it to size and use nuts and washers at each end to build a stud arrangement.

Screwbolts are designed for direct fixing into masonry or concrete where that method suits the application. For anchoring plates, frames and other loadbearing fixings, anchor bolts and threaded bar give you a flexible way to set out and adjust the connection on site.

Typical uses

• Bolts for brackets, steelwork connections and general assembly work.

• Threaded rods for construction work where you need a longer length fixing or a stud arrangement.

• Screwbolts for direct fixing into masonry or concrete where the application suits that method.

• Anchor bolts and threaded bars for anchoring plates, frames and other loadbearing fixings.

How to choose the right bolts and threaded bars

• Steel tensile grades: Use standard 4.8 grade steel for light-duty joinery. Step up to 8.8 or 10.9 high-tensile steel for load-bearing structural steelwork and heavy engineering joints.

• Protective finishes: Select bright zinc plated finish for dry indoor applications. Use hot-dipped galvanised or stainless steel for outdoor weathering, marine environments, or pressure-treated timber.

• Metric thread diameter: Ensure your metric thread sizing (such as M6, M8, M10, or M12) matches your pre-drilled holes, structural washers, and internal nut threads.

Before you order

Verify your structural engineer's drawings to confirm bolt diameters, lengths, and tensile grade ratings. Make sure you have the cutting equipment you need, such as angle grinders, metal cutting discs, as well as thread deburring tools and matching nuts and washers to complete your installation cleanly. Additionally, confirm you have essential Personal Protective Equipment (PPE), including safety glasses, cut-resistant gloves, and ear protection, ready for steel fabrication work. 

Explore our range of bolts and threaded bars

Browse bolts and threaded bar options for everyday fixing and heavier construction work. Find the exact thread diameters, lengths, and steel grades your project requires. 

Order online today and take advantage of our free Click & Collect service from your nearest Travis Perkins branch. We also offer fast delivery direct to site to keep your build moving.