In mechanical manufacturing, construction, and everyday assembly, we often use a variety of fasteners. The function of fasteners is to securely connect two or more parts together, making the structure more stable.
So what are some commonly used fasteners? Let's take a look.
1. Bolt
Bolts are the most common type of fastener and are usually used in conjunction with nuts.
Features:
Can be repeatedly assembled and disassembled, providing a secure connection.
Commonly used in mechanical and steel structures.
**Common Types:** Hexagonal head bolts, anchor bolts, flange bolts, etc.
2. Nut
Nuts are fasteners used in conjunction with bolts.
Features:
Provides a locking and securing function.
Depending on their application, they are categorized as ordinary nuts, lock nuts, and flange nuts.
**Common Materials:** Carbon steel, stainless steel, copper, etc.
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3. Screws
Screws are generally screwed directly into the workpiece, without the need for a nut. Features:
Easy to install
Suitable for thin sheets, plastics, or wood
**Common types:** Self-tapping screws, machine screws, wood screws, etc.
4. Washer
Washers are typically placed under bolts or nuts.
Purpose:
Distributes pressure
Protectes the connected surfaces
Prevents the nut from loosening
**Common types:** Flat washers, spring washers, sealing washers, etc.
5. Pin
Pin is used to locate or connect parts and sometimes to prevent relative movement.
**Common types:** Cylindrical pins, tapered pins, cotter pins, etc.
6. Rivet
Rivets are primarily used for permanent connections.
Features:
Once installed, they are difficult to remove.
Commonly used in metal structures, vehicles, and aviation manufacturing.
**Common types:** Round head rivets, blind rivets, solid rivets, etc.
7. Threaded Rod
Also called full-thread screw, these rivets have threads on both ends. Applications:
Suitable for applications requiring adjustable length or wide-range fastening.
Commonly used in construction and equipment installation.
8. Other Common Fasteners
In addition to the above categories, there are also:
Retaining Rings (to prevent axial movement)
Expansion Bolts (for wall attachment)
Welding Pins (for welded connections)
Although small in size, fasteners play a crucial role. From bolts and nuts to washers and rivets, different types are suitable for different applications.
If you need to purchase high-quality fasteners in bulk, it is recommended to choose a factory with experience and support for OEM/ODM customization.
