What Are Coach Screws Used For?
Coach screws are heavy-duty wood screws mainly used for fixing timber and attaching fittings to wooden structures. They normally have a coarse thread and a hexagonal head, which can be tightened with a spanner or socket.
Coach screw is commonly used as a general name for heavy-duty hexagon-head wood screws, including screws made to the DIN 571 standard. DIN 571 wood screws are widely used for timber fastening in construction, woodworking, and other general applications.
Coach Screw Applications
Coach screws are mainly used when a strong fixing is needed in timber. Their coarse thread provides good grip in wood, while the hexagonal head makes installation straightforward.
Typical coach screw applications include:
- Fixing timber beams and wooden frames
- Attaching brackets and metal fittings to timber
- Securing wooden supports and structures
- Fixing timber to masonry with a suitable wall plug or anchor
- General construction and woodworking
The screw diameter and length should be selected according to the timber thickness and the required fixing depth.

DIN 571 Wood Screws
Coach Screws for Wood and Masonry
Timber is one of the main materials for coach screws. DIN 571 wood screws are available in different diameters and lengths, making them suitable for many timber fastening applications.
For larger screws, drilling a suitable pilot hole can make installation easier and help reduce the risk of splitting the wood.
Coach screws can also be used to fix timber to brick or concrete, but they should not normally be installed directly into masonry. A suitable wall plug or masonry anchor is needed to provide the required grip.
DIN 571 specifies hexagon head wood screws, which are available in different sizes, materials, and finishes. Carbon steel is commonly used for general applications, while stainless steel can be selected when higher corrosion resistance is required. Zinc-plated finishes are also widely used for general fastening applications.

DIN 571 Wood Screws
Xinchi Fastener Factory
Founded in 2007, Xinchi Fastener Factory has its own fastener manufacturing facility with 102 cold heading machines and a daily production capacity of more than 10 million pieces.
The new factory covers 30,000 square meters and includes two six-story buildings, providing strong production capacity for large-volume fastener orders.

Xinchi Fastener Factory
Xinchi supplies DIN 571 wood screws, DIN1624 T nuts, Hopper Feed T nuts, thread insert nuts, rivet nuts, bolts, washers, and other fasteners in different sizes, materials, and finishes for customers in different markets.
