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Coach Screws
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Coach screws, also sometimes called lag screws or lag bolts, are a type of heavy-duty screw commonly used for construction and woodworking projects. Designed to provide a strong and secure fixing, coach screws feature a sharp point and threaded shank for a strong grip into timber. Lag screws also have an hexagonal head that allows for tightening with a spanner or wrench for high torque. This type of screw is especially suited to heavy-duty applications like fixing beams or decking.
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4Trade M10 x 100mm Coach Screws Bright Zinc Plated Qty 20
Retail price
£6.24
each£5.20 ex. vat
£0.25per item
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£5.72
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4Trade M10 x 150mm Coach Screws Bright Zinc Plated Qty 20
Retail price
£8.33
each£6.94 ex. vat
£0.42per item
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£7.66
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3 (2 reviews)
4Trade M10 x 150mm Coach Screw Bright Zinc Plated Qty 5
Retail price
£2.08
each£1.73 ex. vat
£0.42per item
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£1.91
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3 (1 review)
4Trade M10 x 130mm Coach Screw Bright Zinc Plated Qty 5
Retail price
£1.85
each£1.54 ex. vat
£0.37per item
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£1.70
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5 (1 review)
4Trade M10 x 75mm Coach Screws Bright Zinc Plated Qty 20
Retail price
£5.86
per pack£4.88 ex. vat
£0.29per item
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£5.38
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4Trade M10 x 100mm Coach Screw Bright Zinc Plated Qty 5
Retail price
£1.56
each£1.30 ex. vat
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£1.43
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4Trade M8 x 50mm Coach Screw Bright Zinc Plated Qty 5
Retail price
£1.61
each£1.34 ex. vat
£0.32per item
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£1.48
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4Trade M6 x 40mm Coach Screw Bright Zinc Plated Qty 5
Retail price
£0.62
each£0.52 ex. vat
£0.12per item
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£0.58
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4Trade M8 x 75mm Coach Screw Bright Zinc Plated Qty 5
Retail price
£1.85
each£1.54 ex. vat
£0.37per item
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£1.70
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4Trade M6 x 50mm Coach Screw Bright Zinc Plated Qty 5
Retail price
£0.76
each£0.63 ex. vat
£0.03per item
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£0.70
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4Trade M10 x 75mm Coach Screw Bright Zinc Plated Qty 5
Retail price
£1.15
each£0.96 ex. vat
£0.23per item
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£1.06
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4Trade M8 x 100mm Coach Screw Bright Zinc Plated Qty 5
Retail price
£12.66
per box£10.55 ex. vat
£0.51per item
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£11.64
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4Trade M10 x 50mm Coach Screw Bright Zinc Plated Qty 5
Retail price
£1.04
each£0.87 ex. vat
£0.21per item
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£0.96
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4Trade M8 x 50mm Coach Screws Bright Zinc Plated Qty 20
Retail price
£4.04
per pack£3.37 ex. vat
£0.20per item
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£3.71
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4Trade M10 x 50mm Coach Screws Bright Zinc Plated Qty 20
Retail price
£4.15
per pack£3.46 ex. vat
£0.21per item
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£3.80
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Showing 1—15 items of 15
Learn more about coach screws
Coach screws are timber fixings used on site for timber to timber work. Check the product specifications for size, head type, drive type and finish before you order.
Typical uses
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Heavy timber framing: Fastening structural posts, roof trusses, and wall plates in timber frame construction.
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Landscaping and exterior structures: Anchoring timber sleepers, pergolas, decking joists, and retaining walls.
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Ironmongery and gate fitting: Mounting heavy-duty strap hinges, gate brackets, and security plates onto solid wood posts.
How to choose the right coach screws
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Choose the size to suit the thickness of the timber and the loadbearing needs of the fixing.
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Match the length to the connection, not just the visible timber face.
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Hex head coach screws are common on site because they are straightforward to drive with the right tool.
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Check your project requirements against the product specs to guide your choice.
Before you order
Have the timber size, fixing length and drive type to hand before you place the order. You can then compare the range and choose the right product for the job in hand.
Explore our range of coach screws
Browse coach screws by size, finish and application suitability to find the right fixing for the job. The range includes options for internal framing work and corrosion resistant choices for outdoor timber projects, so you can compare products against the task in hand.
Order coach screws online, use Click & Collect or check stock at your local branch.
FAQs about coach screws
What are coach screws used for?
How do I choose the right coach screw size?
What is the difference between a coach screw and a coach bolt?
Are coach screws the same as lag screws or lag bolts?
What should I check before I order coach screws?