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Types of Bolts, Nuts, and Washers

May 03,2023

Types of Bolts, Nuts, and Washers

There are a variety of screws available at T&Y Hardware, so you better choose the type that suits your job or need. 

Bolts, nuts, and washers are the most popular types of fasteners. Steel and stainless steel are two types of steel that can be use in manufacturing process of these Machine screw.

This contains an image of: 13 Different Types of Nuts (Mechanical) - and Their Uses [With Pictures & Names]



A bolt is a type of fastener that is used to combine or attach materials together. It can be made from steel, stainless steel or bronze.

Bolts such as  hex flange bolt are composed of head, shank and an unthreaded portion. These pieces work in combination to provide a secure and reliable connection between pieces.

A washer is a thin, flat piece of material that is placed underneath the threaded head of a fastener and between the nut and the bolt body. This helps spread out the load and prevents deformation of the material. It also reduces vibration to help keep the threads from loosening and breaking.

2. Nuts

Nuts are small metal blocks with a threads that fits on bolt or screw internal threads. They secure electrical equipment, cars, and spare parts.

Nuts can be brass, copper alloy, steel, or nylon. Material affects fastener strength and durability. They can be square, hexagonal, or round. Applications requiring torque and grip use hexagonal nuts.

You should purchase a nut that has the same tensile strength and alloy as the bolt. During assembly, this will prevent anything from breaking or becoming dislodged.

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Washers fit into threaded fastener heads. They distribute loads evenly and prevent fasteners from slipping, especially on uneven surfaces.They also prevent the surface from cracking while a screw is driven. They're used to fasten wooden furniture and car engines.

Metal washers include aluminum, brass, copper, nickel, spring steel, and hardened steel. Nylon, acetal, and PTFE plastics add lubricity and wear resistance. Washers are flat or sealing. Sealing washers prevent leaks while flat washers distributes the load.

4. U-Bolts

U-bolts are curved like the letter "U." They are threaded like flange bolts. Cold bending or hot forging carbon, alloy, or stainless steel makes them. Pipelines are supported and is also guided by them. Anchors, too.

Gripped and non-gripped piping supports are available at T&Y Hardware. Non-gripped models support pipes, while gripped models prevent pipe movement during transport. Zinc plating protects U-bolts. Coatings for aesthetics or durability are available as well.

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