Coach screws are designed for metal to timber connections, or to join heavy timbers. Also known as lag bolts or lag screws, they have a square or hexagonal head engineered to be used with a wrench, spanner, or pliers. These screws come in a wide range of sizes, from the very small ones packed with furniture designed to be assembled by the consumer to extremely big ones used in large scale construction projects.Hex head lag wood screw

Hexagon wood screws are also called Coach screws or Lag Screws. Usually, Hexagon Wood screw is used for drilling Wooden Board. As for the surface treatment, we can make Yellow zinc plated, Blue-White zinc plated, Hot dip galvanized, Nickle, Chrome, Black zinc, Black oxide, Dacromet, Ruspert, etc. For Material, We can produce Carbon steel, SS304, SS316, A2-70, A4-80.
Wood screws are threaded fasteners that are used to join wooden workpieces. They aren’t necessarily made of wood. Rather, wood screws are available in many of the same metals and alloys as other screws. They are simply known as “wood screws” because they are designed for use with wooden workpieces.
Coach screws are designed for metal to timber connections, or to join heavy timbers. Also known as lag bolts or lag screws, they have a square or hexagonal head engineered to be used with a wrench, spanner, or pliers. These screws come in a wide range of sizes, from the very small ones packed with furniture designed to be assembled by the consumer to extremely big ones used in large scale construction projects.
Fasteners are widely used in energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, mold, hydraulic and other industries.
Various fasteners can be seen in various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, instruments and supplies.
They are the most widely used basic mechanical components. It is characterized by various specifications, different performance and uses, standardization, serialization and high universality.
Therefore, some people call a fastener with national standards as standard fastener, or standard fastener for short.