Fasteners are essential in holding together various items, from furniture to industrial equipment. These small but mighty pieces come in various sizes, shapes, and materials, enabling them to perform various functions. They can be made from materials such as steel, brass, copper, aluminium, or titanium and are available in different finishes, including nickel-plated, zinc-coated, or powder-coated, each with unique properties. Regardless of the specific type or material, the primary purpose of fasteners is to provide a strong, secure, and long-lasting joint. Whether you're a DIY enthusiast or work in manufacturing, understanding the different types of metal fasteners and their applications can make your project successful.

Fasteners are an essential component of construction and engineering projects. They are used to join two or more objects together, providing strength, stability, and reliability. Some common fasteners include screws, bolts, nuts, rivets, and washers. Steel fasteners are known for their strength and durability, while brass and copper fasteners have excellent thermal and electrical conductivity. Different types of metal fasteners also have specific uses, such as self-tapping screws for sheet metal, carriage bolts for wood applications, and anchors for concrete. Overall, fasteners are crucial in ensuring the structural integrity and safety of buildings, bridges, and industrial equipment

Types of Fasteners: -

Some of the most commonly used Fastener types are listed below with their purposes: -

• Bolts: -Bolts are a type of threaded fastener consisting of an external male thread. Bolts are commonly misinterpreted with screws. Both have different structures and purposes altogether. Bolts are often used in making bolted joints, for the assembly of two unthreaded components. Types of Bolts include Anchor Bolts, Arbor Bolts, Elevator Bolts, Hex Bolts, Carriage Bolts, Lag bolts, J-Bolt, U-Bolt, Hanger bolts, and so on.
• Screws: - A screw is somewhat similar to a Bolt and is characterised by a typical helical ridge, also known as the male thread. A screw usually has a head with a special cut that allows it to be tightened into a softer base using a tool.
• Nuts: - Nuts are normally used along with a fastening bolt to fasten multiple parts together. Hexagonal nuts are popular as they provide easy access for a tool and require only one-sixth of rotation to reach the next side and obtain optimal grip.
• Washers: - A washer is a thin plate of metal that is basically used to distribute the weight of any threaded fastener. Washers usually have an outer diameter twice the inner diameter.

Special Considerations

There are several special considerations to consider when selecting a fastener.

• First, you must ensure the fastener is compatible with the material it will be used on.
• Additionally, you need to consider the fastener's strength requirements and operating environment (e.g., temperature, vibration).
• It is also essential to check that the fastener meets all applicable industry regulations.
• Finally, you should ensure the fastener has an appropriate corrosion resistance rating for its intended application.

Fasteners FAQs

HSN Code Of Fasteners?

The HSN Code for metal fasteners is 7318. This code covers a wide range of metal products, including screws, bolts, washers and nuts.

How to Weld Fasteners?

Welding metal fasteners requires an understanding of the metals, pre-cleaning of the joints and selecting the correct filler material.

Are Fasteners Magnetic?

Yes, metal fasteners are magnetic as long as they are made from a ferromagnetic material like iron or nickel.