Types of bolt

A bolt is a uniformly threaded fastener. Bolts can be manufactured with or without a head, the same applies to their threads too – they can be threaded wholly or partly.

What is a bolt?

A bolt is a fastener threaded partially, with a shaft (smooth space) left between the head and the end of the threading.

A bolt is designed to fasten objects with the help of a nut. Driven in an already drilled hole; nuts are used to counter lock the bolts, thereby providing reinforcement to the fastened object.

What are the types of Bolt?

The following are the varieties of bolt available:

1. Anchor Bolt

An Anchor bolt functions to joins an object to concrete. Manufactured with an external thread at its end, these bolts are inserted through holes in already constructed parts and are tightened by a nut. They are rust resistant and vigorous.

Uses: This one is useful in nuclear plants, dams, reservoirs, home renovation, etc.

2. Machine Bolt

A Machine bolt functions to clamp two metal objects together. They are manufactured with a threaded shaft with a square or hexagon-shaped head at on end. Commonly called as Anchor screws, a socket wrench is used to either fasten or loosen the bolt during operation. Manufactured from Stainless Steel and Silicon Bronze, these bolts resist corrosion. They are also available in Carbon Steel, Brass, and Aluminium.

Uses: Brass and Aluminium bolt is useful in marine and aerospace sectors.

3. Carriage Bolts

A Carriage bolt functions to fasten Metal to Wood. These bolts have a round head which is twice the diameter of its shaft. The head bears no depression mark; below the head is a square fitting for nut fitting, giving reinforcement to the bolt, preventing it from twisting. They are available in many metals and are put to use in corrosive environments.

Uses: Furniture, automobiles, outdoor decks, machine assembly, etc.

4. Elevator Bolts

An Elevator bolt functions to fasten soft, flexible items. These bolts too are threaded usually have big, flat head with an undercut for a nut. Also known as Belt bolts; they are widely available in Steel, which limits their use to non-rustic surroundings. They are available in Carbon, Carbon Steel, and Zinc plated as well.

Uses: Conveyor systems, agricultural belting systems, etc.

5. T-bolts:

A T-bolt functions to fit into any slot and grips with ease with the help of a wrench. They are durable and convenient, with a full contact surface improving its grip. These bolts resist vibration and get produced in Aluminium, Brass, Stainless Steel, Copper, etc.

Uses: They are used in building construction, automobiles, furniture, instruments, etc.

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