What Is A Carriage Bolt
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![What Is A Carriage Bolt](https://www.scrooz.com.au/assets/images/what-is-a-carriage-bolt.jpg)
All about Carriage Bolts
Carriage bolts are a type of bolt used in woodworking, mostly in joining wood to metal. Despite being intended for use with wood, carriage bolts have a machine screw thread, and are commonly used to join metal to metal. Carriage bolts have a large domed mushroom head, with a square section right underneath the head.
The domed mushroom head prevents the bolt from being pulled through a wooden construction and prevents removal/loosening from one side. The domed head does mean that carriage bolts cannot be installed by screwdriver bits or a socket and spanner.
The square section under the head of a carriage provides a level of locking ability when tightening into soft materials such as wood. This allows the fastener to be installed with only one tool, a spanner or wrench, working from one side.
![What Is A Carriage Bolt - Carriage Bolt set into wood.](https://www.scrooz.com.au/assets/images/what-is-a-carriage-bolt-carriage-bolts-in-wood.jpg)
Carriage bolts set into wood. Typical used in an outdoor construction sch as a deck.
A popular reason for using carriage bolts is their round head, which can give a finished appearance for many builds uses. This aesthetic appeal sees them used in everything from outdoor wooden stairs and steps to flush faces surfaces in the automotive and transport industries.
![What Is A Carriage Bolt - Carriage Bolts available in full thread and with shank](https://www.scrooz.com.au/assets/images/what-is-a-carriage-bolt-carriage-bolts-outline.jpg)
Carriage bolts come in full thread and with shank.
You can check out our full range of bolts here: Bolts. Our full range of carriage bolts here: Carriage Bolts
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The Scrooz Fasteners Team