Forge 10CS660 Coach Screw Hexagon Head Single Thread ZP M6 x60mm Bag of 10. These Forgefix single thread Coach Screws are Zinc plated for increased durability. Head: Hexagon Head. Finish: Zinc Plated. Single Thread Screw. Used Predominantly When Fixing To Timber In Many Fencing And Joinery Applications. Heavy Duty Fixing. Conforms To Din571 Standards. Traditional Hexagon Head Suitable For Use With Socket Drivers. Zinc Plated For Improved Durability. Widely Used In Conjunction With Nylon Wall Plugs In Particular The Satellite Industry. These coach screws are tough, reliable and easy to use - with a sharp tip and coarse thread, they're easy to insert for a firm and secure fit, and the traditional hexagon head allows you to achieve even greater torque with a socket driver. Single thread screws for a strong, heavy-duty fixing. Hexagon head for greater torque with a socket driver. Perfect for fixing to timber in fencing and joinery applications. Zinc-plated for even greater durability.