A coach screw is a type of heavy-duty screw that either has a square or hexagonal head.A lag screw or coach screw is an example of a single component screw with a single wood thread that is course, making it the best option for screwing into softer materials like timber. At GNEE RAIL, we offer an extensive range of galvanised hex head and hex head grade 4.6 zinc-plated screws for all your fastening needs.
Coach screws have a hexagonal head, meaning they're designed to be used in conjunction with a spanner, wrench or pliers. This makes it much easier to remove screws or secure them in place. Typically, coach screws are made of steel but can be zinc plated.
The cylindrical thread and sharp point mean that the screw bites onto the timber for a secure grip, making it the perfect screw for a super strong hold. On our site, you'll typically find coach screws in many different sizes, ranging from 6mm x 25mm to 12mm x 200mm.
Types of coach screw
Zinc plated: We offer separate zinc-plated hex head coach screws with an essential protective coating to minimise wear and tear. These can be characterised by their bright zinc-plated appearance compared to other coach screw types.
Hot dipped Galvanised Class 3: The hot dipped galvanised screw refers to the type of coating we use on our screws. Hot-dipped galvanised is the process in which the stainless steel screw is dipped into hot zinc to protect against corrosion. Therefore, hot-dipped galvanised is a weather-resistant coating that can enhance the strength of your screw.
| Specification | Range/Options |
|---|---|
| Thread Size | Coarse thread design |
| Length | 65mm (3 inches) to 200mm (8 inches) or more |
| Shank Diameter | 12mm to 24mm |
| Head Type | Hexagonal or Square |
| Material | Q195 and Q235 Carbon Steel or Stainless Steel |
| Coating | Hot-dip galvanizing, Zinc plating, etc. |
| Flange/Square Neck |
Available/Customizable |
GNEE RAIL manufactures and sells various types of threaded track spikes used for wooden sleepers or concrete sleepers. The product specifications include: Ss1, Ss2, Ss5, Ss6, Ss7, Ss8, Ss16, Ss17, Ss23, Ss24, Ss25, Ss27, Ss28, Ss35, Ss36, Ss76, as well as 3V threaded track spikes V20, V23, V26, and various trapezoidal tooth bolts. The grades available are 4.6, 4.8, 5.6, 5.8, 6.8, 8.8, 10.9, and 12.9. The material grades include Q235, 35, 45, 40Cr, 20MnTiB, 35CrMo, and 42CrMo. The surface treatments available are plain oil, blackening, hot-dip galvanizing, electroplating, and Dacro coating.
