Coach Screw - Silver - M6 x 100mm

'M6' refers to the nominal diameter of the screw's thread, which is approximately 6 millimeters. '100mm' indicates the length of the screw from the underside of the head to the tip, which is 100 millimeters.

Yes, pre-drilling a pilot hole is highly recommended, especially when working with timber, to prevent splitting the wood and to ease the insertion of the screw. For masonry, you will need to drill a hole for the appropriate nylon wall plug.

Due to its traditional hexagon head, you will need a socket wrench or socket driver of the correct size. For an M6 coach screw, this typically means a 10mm or 11mm socket.

These coach screws are primarily designed for strong fastenings in timber and, when combined with nylon wall plugs, in masonry. They are generally not recommended for direct fastening into metal as their coarse thread is not suited for tapping into metal effectively.

Zinc plating is a protective coating applied to the steel screw. It helps prevent rust and corrosion, extending the lifespan of the fastener, especially in outdoor or damp environments. It's a sacrificial coating, meaning it corrodes before the underlying steel.

Yes, the zinc plating provides good resistance against rust and corrosion, making them suitable for many outdoor applications such as fencing, decking supports, and general construction where exposure to weather is expected.

A single thread means the screw has one continuous helical groove from tip to shank. This design offers higher pull-out values and generally allows for quicker insertion into timber compared to screws with multiple threads.

This usually indicates an insufficient or missing pilot hole. Ensure you pre-drill a pilot hole with a diameter slightly smaller than the screw's core and a depth slightly less than the screw's length before insertion.

Confirm you are using the correct size socket driver for the hexagon head. Using an ill-fitting socket or excessive force can cause stripping. Replace the damaged screw if necessary and use the correct tool.

Verify that you are using a nylon wall plug of the correct size and type for the M6 coach screw, and that the hole drilled for the plug matches the plug manufacturer's specification. Ensure the plug is fully seated before inserting the screw.

Minor scratches can occur during installation. The zinc plating provides a sacrificial layer; however, if the base metal is exposed, apply a cold galvanizing paint or zinc-rich primer to the exposed area to maintain corrosion resistance.