Coach screws are heavy-duty, hexagonal-headed fasteners designed for high-torque timber-to-timber and metal-to-timber connections.

These structural fixings combine the deep-thread grip of a wood screw with the robust head of a bolt - allowing you to secure heavy fencing, decking, and timber frames with a standard wrench or impact driver. - found in most toolboxes.

You can choose from zinc-plated options, which provide reliable protection for internal projects and dry environments, or A2 stainless steel coach screws, which offer superior corrosion resistance for coastal sites and high-moisture outdoor applications. For pressure-treated landscaping timber, Net-Coat Green finishes ensure your fixings blend into the wood for a clean, professional appearance.

Pre-drilling a pilot hole is recommended to prevent timber splitting - ensuring you achieve a permanent, rock-solid bond in both hardwoods and softwoods. These screws are engineered to withstand significant shear forces in structural construction and heavy-duty joinery.

Stock up on trade-quality coach screws from trusted brands, such as Timber-Tite and FandF.

How Should Coach Screws Be Used?

One of the main reasons for using coach screws is the strong hold they provide, making them ideal for securing h eavy timber to timber or metal to timber. They are versatile and robust enough to be used on masonry and concrete too. When using coach screws, you first need to drill a pilot hole. A twist drill bit is recommended for timber and wood, while you’ll need an SDS drill bit for masonry. At Toolstation, you’ll find a wide range of professional-quality coach screws at affordable prices from brands such as Timber-Tite and FandF. Coach screws are available in various sizes and finishes, including zinc plated and A2 stainless steel, best suited to outdoor use.

M8 40mm (L) Coach Screws

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