Bolts - Common Bolt Types
Hex Head bolts are used in construction, machinery and as a general purpose fastener. They can be secured with a nut or screwed into a tapped hole. Also known as Hexcap screws, Hex bolts or Hexagon bolts. Fully threaded bolts are sometimes called Tap bolts or Set screws.
Carriage Bolts commonly called Coach bolts have a domed head with a square neck under the head that stops the bolt from spinning whilst tightening with a nut. Used on gates and doors. Sometimes known as Mushroom head square neck bolts.
Countersunk bolts or Flat head bolts are made to sit flush with the surface of the material being fastened to. A countersinking tool can be used to create the depression the bolt sits into. Sometimes a Cup washer can be used to raise the head above the surface.
Hex Head Flange bolts are Hex head bolts manufactured with a washer attached bellow the head known as a flange. This helps to spread the load of the bolts. Commonly used in the automotive industry and have a wide range of applications.