Allen Bolt Head Types
Manufactured to iso 4014 or din 931 and therefore includes an unthreaded section of the shaft.
Allen bolt head types. The most common type of bolt head types includes square hex slotted hex washer and socket cap. Screwhead buying guide chart showing 60 types of screws screw heads bolts nuts and washers chart finding the right type of screw head for your project when there are hundreds of combinations of the drive type and head shape can be confusing especially for beginning diyers. The most common type of fastener a hex head bolt is designed to be tightened with a standard spanner or ratchet and socket. Types of lug nuts types of construction nails wood screws vs.
Socket screws used with allen keys to fasten them therefore are also known as allen head screws. Machine screws designed to be used with a tapped hole or interior nut thread. Eye bolts a bolt with a circular ring on the head end. However this type of head also does tend to burr.
Bolts with a smooth rounded head that has a small square section underneath. Eye lags similar to an eye bolt but with wood threads instead of machine thread. Also available with a square bend. Abbrevi ated hhmb or hxbt.
Learn about the different parts of screws and what the options you have. This type of bolt is commonly used with prison door locks automobile ignition. All the different screw types have a range of different parts options to choose from. Used for attaching rope or chain.
The earliest bolt heads in use were the square heads. The parts or features of screws and the different kinds of screw understand the different screw features including types of screw head types of screw thread and drives. Either method leaves only a smooth bolt head exposed. This head type has four points of contact instead of two.
Allen bolts or screws come with various head styles including cap heads button heads and countersunk heads each prefixed commonly with the word socket or allen. Bolts with a hexagonal head with threads for use with a nut or tapped hole. U bolts bolts in u shape for attaching to pipe or other round surfaces. This means that either a slotted head screw driver or philips head screw driver can be used.
The hex head is used to drive the bolt into the countersunk hole then either a wrench or hammer is used to break the shank and hex head from the flat head or it is driven until the driving head shears off. These heads are made in order to grip the tools that are used to tighten them. Allen sets or grub screws tend to refer to screws without a head where the allen key socket is integrated with the screw thread. Socket screws also known as allen head are fastened with a hex allen wrench.
This head type was brought in to improve the quality of the overall performance when in contact with the screwdriver. J bolts j shaped bolts are used for tie downs or as an open eye bolt. Some of our most popular fixing categories include.