Coachscrews are heavy-duty fixings designed for strong fastening into timber, masonry, and other solid materials. Commonly used in construction and structural projects, they provide a secure hold where strength and long-term durability are essential.
At RCF Bolt & Nut, we supply a reliable range of coachscrews in multiple sizes, finishes, and head types, making it easy to match the correct fixing to your project requirements. Whether you’re working on timber framing, fencing, structural supports, or outdoor installations, our coachscrews deliver the performance you need.
We stock coachscrews suitable for a wide variety of industrial and construction applications. Our range includes:
Hexagon head coach screws
Square head coach screws
Lag screws
Zinc plated coach screws
Galvanised coach screws (ideal for external use)
Available in different diameters and lengths, our coachscrews are built for strong thread grip and dependable fastening into timber, brickwork, and structural materials.
Coachscrews are mainly used for heavy-duty fastening into timber and masonry. They are commonly used in fencing, decking, roofing, timber frames, and structural construction work where strong fixing strength is required. They are especially useful when a standard wood screw isn’t strong enough and a more secure structural fixing is needed.
Yes, coach screws are often referred to as lag screws, particularly in American terminology. Both names describe the same type of heavy-duty threaded fixing used for timber and structural applications. They are especially useful when a standard wood screw isn’t strong enough and a more secure structural fixing is needed.
In most cases, yes. Drilling a pilot hole reduces the risk of splitting timber and makes installation easier, especially when using larger diameter coach screws. A pilot hole also improves accuracy and helps the screw drive in straighter, especially in hardwood or dense materials.
Yes, galvanised coach screws are ideal for outdoor projects because they offer strong corrosion resistance. They’re commonly used in fencing, garden structures, outdoor timber framing, and exposed environments. The protective coating helps prevent rusting over time, even in wet or harsh weather conditions.
Zinc plated coach screws are typically used indoors or in low-moisture environments, offering basic corrosion resistance. Galvanised coach screws have a thicker protective coating, making them far better suited for outdoor and high-exposure conditions. If the project will face rain, damp, or coastal air, galvanised is almost always the better long-term option.
Yes, washers are often recommended with coach screws, especially in timber applications. A washer helps distribute the load and prevents the screw head from sinking into softer materials. This improves the overall strength of the fixing and gives a cleaner, more secure finish once tightened.
Coachscrews can be used in a wide range of applications, including construction, woodworking, furniture manufacturing, and general building projects. They provide a reliable fastening solution for materials such as timber, metal, and masonry, making them a highly adaptable choice for both residential and commercial use.
Known for their strong grip, coachscrews feature a coarse thread design that bites firmly into the material. This ensures a secure connection capable of withstanding heavy loads, vibration, and long-term stress, making them ideal for structural and load-bearing applications.
Coachscrews are designed to be installed using standard tools such as drills or spanners. When used with a correctly sized pilot hole, installation is smoother and more controlled, reducing the risk of material splitting and ensuring accurate positioning.
Galvanised coachscrews are specifically designed for outdoor use, offering enhanced resistance to corrosion and weathering. This makes them ideal for fencing, decking, timber framing, and other applications exposed to moisture or changing weather conditions.
Coachscrews are suitable for fixing into timber, securing metal components, or anchoring into masonry and concrete when used correctly. Their versatility makes them a dependable solution for projects that involve multiple materials or structural connections.
Available in a variety of diameters and lengths, coachscrews can be selected to suit specific load requirements and material thicknesses. This range allows for precise fastening, ensuring optimal performance and a secure fit for each application.
Once installed, coachscrews provide a strong and stable fixing that minimises the risk of loosening over time. This contributes to the overall structural integrity of the project and ensures long-term reliability, even in demanding conditions.
Contact our team to discuss your coachscrew requirements or bespoke specifications.
We are pleased to have secured a £10,000 grant from Walsall Business Support towards our investment in advanced CNC technology. The funding, awarded in October, contributed towards the purchase of our new Doosan Lynx 2100LB CNC lathe and forms part of our continued programme of machine shop development and expansion. This type of backing allows […]
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We’re proud to reveal the brand-new look of our company van. We worked closely with the team at GingerApple Signs & Graphics Ltd, to refresh the vehicle branding for both RCF Bolt & Nut and our sister company Union Fasteners. The updated design reflects our brand clearly and consistently, while presenting a clean and modern finish […]
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We are pleased to announce that, effective Friday 2 January 2026, the entire business of GSS Fasteners Ltd has been acquired by its sister company, RCF Bolt & Nut. This internal transfer represents a significant milestone for the business and marks an important step in bringing our operations even closer together. RCF Bolt & Nut […]
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