Bolts
(114 Products)Bolts are externally threaded fasteners typically used in combination with nuts to secure two or more components together. They are essential in numerous industries and applications, providing strong, reliable connections that can be tightened or released as needed. Whether you are working on a construction project, manufacturing machinery, or tackling a DIY task, choosing the right bolt for the job ensures long-lasting, secure results.
What Are Bolts?
Bolts are fundamental fasteners designed to securely join two or more components. Featuring external threading, they are typically used with a corresponding nut to form a strong, yet removable connection. In most applications, the bolt's threaded shaft is inserted into a pre-drilled hole through the materials being fastened. A nut is then threaded onto the exposed end, and as it is tightened, it pulls the components together, creating a firm and stable joint.
The combination of the bolt's thread and the nut provides a reliable, non-permanent fastening solution. Unlike rivets or welding, bolts can be removed or replaced if necessary, which makes them ideal for applications that require disassembly or maintenance.
They are designed to be used with washers, which are flat, disc-shaped components that are placed between the bolt head or nut and the surface being fastened. Washers help distribute the load more evenly and protect the surfaces from damage. They can also help prevent the bolt from loosening over time due to vibration or wear.
Basic Structure of a Bolt
A typical bolt consists of several key parts:
- Head: The large, flat end of the bolt, usually designed to be gripped with a tool such as a wrench or screwdriver for tightening or loosening. Bolt heads come in various shapes, such as hexagonal (the most common), round, square, or even custom shapes for specific applications.
- Shank: The smooth, unthreaded portion of the bolt that may run the length of the bolt, typically in the middle. In some cases, this portion may be entirely threaded, while other bolts may have part of their shank unthreaded.
- Thread: The helical grooves or ridges that run along the shaft of the bolt. These threads are what allow the bolt to be inserted into a matching nut or tapped hole and create a strong, secure fastening.
- Tip: The pointed end of the bolt that often serves to ease installation by allowing the bolt to enter a pre-drilled hole. In some cases, the tip may be flat or chamfered, depending on the bolt type.
Applications
- Construction and Building: In the construction industry, bolts are essential for assembling structural components like beams, columns, and frameworks. Structural bolts provide the stability and strength necessary to support heavy loads, making them crucial for both residential and commercial buildings. Bolted connections are also used in bridges, steel frames, and other infrastructure projects.
- Furniture Assembly and Woodworking: In furniture manufacturing, bolts are frequently used to join wooden components, such as tables, chairs, and cabinets. Coach bolts, in particular, are often used for their secure, tamper-resistant design, which ensures a tight connection between the parts. Bolts are also commonly used in DIY woodworking projects to build strong, durable structures like sheds, fences, and outdoor furniture.
- DIY Projects and Home Improvement: Bolts are a go-to fastener for DIY enthusiasts. Whether you're building a deck, installing a fence, or assembling furniture, bolts provide a reliable and secure way to join materials. Their strength makes them suitable for heavy-duty tasks, while their versatility ensures they can be used for a wide range of home improvement projects.
- Metalwork, Machinery, and Automotive: In metalworking, bolts are used to fasten parts of machines, engines, and equipment. These fasteners are designed to withstand high stresses and vibrations, ensuring that parts remain securely connected during operation. In the automotive industry, bolts are used to secure components such as engines, chassis, and exhaust systems, ensuring the structural integrity of vehicles.
Materials and Finishes
- Steel (Bright Zinc-Plated): Many of our bolts are made from high-strength steel and are finished with a bright zinc plating to provide mild corrosion resistance. Zinc-plated steel bolts are ideal for general-purpose use in dry environments. While they offer strength and durability, they may not perform as well in wet or highly corrosive environments.
- Stainless Steel: Stainless steel bolts are known for their excellent corrosion resistance, making them the preferred choice for outdoor and marine applications. These bolts are ideal for use in humid or wet conditions, as they are resistant to rust and deterioration. Stainless steel bolts offer strong performance and a clean, polished finish, making them suitable for both functional and decorative applications.
- Galvanised Steel: Galvanised bolts are steel bolts coated with a thick layer of zinc, offering superior corrosion resistance compared to standard zinc-plated bolts. The galvanisation process makes these bolts perfect for outdoor use or applications where they will be exposed to moisture. Galvanised steel bolts are commonly used in construction, fencing, and other outdoor projects that require durable, long-lasting fasteners.
Choosing the Right Bolts for Your Needs
When selecting bolts for your project, it's important to consider factors such as the materials being fastened, the environment, and the load requirements. Our bolts are available in various sizes, lengths, thread types, and materials to meet the demands of any application. Each product listing includes detailed specifications, allowing you to choose the perfect bolt for your needs.
Main Types of Bolts in Our Range
We stock an extensive variety of bolts, each designed to meet the specific demands of various applications. Below are some of the main types of bolts available in our store:
- Roofing Bolts: Roofing bolts, also known as mushroom head bolts, are specifically designed for roofing applications. They feature a large, flat head and a fully threaded shaft, making them ideal for fixing thin materials like metal roofing sheets or cladding.
- Coach Bolts (Carriage Bolts): Coach bolts are heavy-duty fasteners commonly used in woodwork and construction. They feature a smooth, rounded head and a square neck beneath the head that prevents the bolt from turning when tightened.
- Loose Bolts: Loose bolts refer to individual bolts that are not pre-assembled with nuts or washers. These bolts are commonly used in a variety of applications, from metalworking and automotive assembly to general DIY projects.
Frequently Asked Bolts Questions
What Is The Difference Between A Bolt And A Screw?
The primary difference between a bolt and a screw is that bolts generally require a nut to secure the fastening, while screws can be fastened directly into a material. Bolts tend to be larger and used for heavy-duty applications, while screws are often used for smaller, lighter tasks.
Are Stainless Steel Bolts Corrosion-Resistant?
Yes, stainless steel bolts are highly resistant to corrosion, making them an excellent choice for applications in moist or outdoor environments. The material's resistance to rust makes it ideal for marine, coastal, and other high-humidity applications.
What Is The Role Of A Washer With A Bolt?
A washer is often used with a bolt to distribute the pressure more evenly across the surface and prevent damage. It also helps to create a more secure fit, preventing the bolt from loosening due to vibration or wear over time.
How Do I Properly Tighten A Bolt?
To properly tighten a bolt, ensure that the bolt and nut are correctly aligned and threaded. Use a wrench or socket set to tighten the nut, making sure not to over-tighten, which could strip the threads or damage the components. For heavy-duty applications, it's important to use the recommended torque specifications.
Can I Reuse Bolts?
In many cases, bolts can be reused as long as they are in good condition and have not been damaged or worn out. However, it's important to inspect bolts for any signs of wear or corrosion before reusing them, especially in critical applications where failure could have serious consequences.
How Long Do Bolts Typically Last?
The lifespan of a bolt depends on several factors, such as the material it's made from, the environment it's exposed to, and how well it's maintained. Stainless steel bolts in outdoor environments can last many years without significant corrosion, while bolts in high-stress applications may need to be replaced more frequently.
