A versatile heavy duty coach screw with a hex flange head and is the modern replacement for tradit...A versatile heavy duty coach screw with a hex flange head and is the modern replacement for traditional DIN 571 coach screws. Benefits from an aggressive slash point tip for easy driving and reduced splitting. Suitable for softwood, hardwood, man-made board or masonry with the use of a nylon plug. Zinc plated and yellow passivated for improved corrosion resistance. CE Standard WebBS EN 14592:2008Corrosion Rating2 - Occasionally damp/wet, rural and sheltered areasFinishZinc & YellowFixed Washer Dia. mm12.60Head Dia. mm11.93Head TypeHex FlangeInner Thread Dia. mm3.73Length mm80MaterialCarbon SteelPack Dimensions L x W x H mm15 x 90 x 163Pack Weight kg0.114Point TypeSingle SlashProduct Code680SCSYPSize mm6.0 x 80Socket Size mm8SubstratesHardwood, Softwood, Man-Made Board, Brick (with plug)Thread Dia. mm6.0Thread Length mm48Thread TypeSingle Coarse. Power tool compatible Single slash point for quick installation.
This guide is for DIY enthusiasts and professional tradespeople needing a reliable, heavy-duty fastener for woodworking and construction projects. The Timco Coach Woodscrew offers superior driving performance and corrosion resistance, making it a modern replacement for traditional coach screws. A potential caveat is the need for a nylon plug when fastening into masonry.
All features
Colour
Gold
Model Part Number
680SCSYP
Brand
TIMco
Extended Product Information
FAQs
What is the main advantage of the hex flange head?
The hex flange head provides a larger surface area, which distributes pressure more evenly and offers a more secure fixing compared to standard hex heads.
Can these screws be used outdoors?
Yes, they have a zinc and yellow passivation finish offering Corrosion Rating 2, suitable for occasionally damp/wet, rural, and sheltered areas. For prolonged or harsh outdoor exposure, additional protection or specific exterior-grade fasteners may be needed.
Do I need to pre-drill for these screws?
The aggressive slash point tip reduces the need for pre-drilling, especially in softwoods. However, for very hard woods, dense man-made boards, or when using masonry plugs, pre-drilling is recommended.
What socket size is required for the head?
An 8mm socket or wrench is required to drive the hex flange head.
Are these screws suitable for use with impact drivers?
Yes, they are power tool compatible and can be used with impact drivers fitted with an appropriate 8mm socket bit.
What does CE Standard EN 14592:2008 mean?
This standard relates to fasteners used in timber structures, ensuring the screws meet specific performance and quality requirements for structural applications.
How do these compare to traditional DIN 571 coach screws?
They are designed as a modern replacement, offering improved driving performance with the slash point tip and often a more secure head type, while maintaining structural integrity.
Troubleshooting
Screw difficult to drive into wood.
Ensure you are using the correct size pilot hole for the wood density. The slash point is designed for reduced splitting, but very hard woods may still benefit from pre-drilling.
Screw head strips during driving.
Ensure the socket bit is fully engaged with the hex flange head and that the drill/driver is set to an appropriate torque setting. Avoid over-tightening.
Screw does not hold securely in masonry.
Verify that a suitable nylon plug is being used and that it is correctly inserted into the pre-drilled hole. Ensure the screw size is appropriate for the plug and the load.
Pros and Cons
Pros
Excellent driving performance with minimal wood splitting.
Durable carbon steel construction for secure joints.
Good corrosion resistance for protected outdoor or damp conditions.
Versatile application across various wood types and masonry.
Modern design offers a superior alternative to traditional coach screws.
Cons
Requires a nylon plug for use in masonry.
Corrosion resistance is rated for 'occasionally damp/wet' conditions, not continuous exposure.
The hex flange head may be larger than desired for very fine woodworking applications.
Setup, Compatibility & Care
Setup:
Select the appropriate drill bit for pilot holes if required (especially in dense hardwoods or when using masonry plugs).
Use an 8mm socket or wrench for the hex flange head.
For masonry, first drill a hole and insert a suitable nylon plug before driving the screw.
Compatibility:
Power Tools: Compatible with standard power drills and impact drivers fitted with an 8mm socket bit.