Carriage Bolts
Temperature Range:-50°C to 300°C
UV Resistance:the protective finish on carriage bolts provides UV resistance
Corrosion Resistance:The corrosion resistance of carriage bolts can be quantified by their material and finish;
Chemical Resistance:with resistance levels varying based on the material and protective treatments applied.
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Product Description
Product Introduction: Carriage bolts, also known as coach bolts, are a type of fastener that features a smooth domed head and a square section under the head. They are designed to be tightened by hand or with a wrench and are commonly used in wood and some types of metal applications where a flush, clean finish is desired.
Product Details:
- Material: Typically made from carbon steel, stainless steel, or brass, chosen for strength and resistance to corrosion.
- Thread Type: Available in various thread types, including machine screw threads for use with a nut or wood screw threads for direct insertion into pre-drilled holes. — Finish: Often (galvanized) or plated with other materials to protect against rust and improve appearance.
- Application: Suitable for a wide range of applications, from furniture assembly to automotive and construction projects.
Structural Features:
- Domed Head: The rounded head of the carriage bolt sits flush against the material surface, providing a clean, professional finish.
- Square Neck: The square section under the head prevents the bolt from turning when tightened, which is ideal for wood and some metal applications.
- Threaded Shaft: The shaft of the bolt is threaded to facilitate secure fastening into the material.
- Corrosion Resistance: The protective finish helps to prevent rust and corrosion, prolonging the life of the bolt.
Installation Process:
- Hole Preparation: Drill a hole in the material that matches the diameter of the bolt’s threaded shaft.
- Bolt Insertion: Insert the bolt through the hole, aligning it with the nut or material to be fastened.
- Nut Tightening: If a nut is used, tighten it onto the bolt by hand or with a wrench until secure.
- Final Check: Ensure the bolt is properly tightened and the materials are securely fastened together.
Applicable Environmental Conditions:
- Temperature Range:
- Carriage bolts are typically designed to withstand a wide range of temperatures, from approximately -50°C to 300°C, making them suitable for both cold and hot environments.
- UV Resistance:
- For outdoor applications, the protective finish on carriage bolts provides UV resistance, ensuring they do not degrade due to sunlight exposure for extended periods.
- Corrosion Resistance:
- The corrosion resistance of carriage bolts can be quantified by their material and finish; for example, galvanized bolts offer a certain level of protection against salt spray for up to 1,000 hours, depending on the specification.
- Chemical Resistance:
- Carriage bolts made from stainless steel or with specific coatings can resist various chemicals, with resistance levels varying based on the material and protective treatments applied.
Specifications
3/8 Diameter – Minimum Tensile Strength 4.250 lbs
| Catalog number | Bolt Length (in) |
Thread Length(in) | Weight/100(lbs) |
|---|---|---|---|
| LR8634 | 4 | 3 | 16 |
| LR8634-1/2 | 4.5 | 3 | 16 |
| LR8635 | 5 | 3 | 18 |
| LR8636 | 6 | 3 | 22 |
| LR8637 | 7 | 4 | 24 |
| LR8638 | 8 | 4 | 26 |
| LR8640 | 10 | 4 | 34 |
1/2”Diameter – Minimum Tensile Strength 8,500 lbs
| Catalog number | Bolt Length (in) |
Thread Length (in) | Weight/100(lbs) |
|---|---|---|---|
| LR8645 | 5 | 3 | 35 |
| LR8646 | 6 | 3 | 41 |
| LR8647 | 7 | 4 | 44 |
| Lr8648 | 8 | 4 | 51 |
Product Advantages
- 1. Carriage bolts offer superior tensile strength compared to regular screws or nails. This means they can withstand heavy loads without breaking or bending easily. This makes them an excellent choice for constructing structures that require durability and longevity. They are often preferred over other types of bolts because of their ability to resist twisting or rotating, which can cause loosening and compromise the integrity of the joint.
- 2. Easy Installation: The unthreaded shank simplifies the installation process, allowing the bolt to be easily placed into pred-drilled holes.
- 3. Versatility: Available in various materials and finishes, carriage bolts can be selected for different levels of strength and corrosion resistance.
- 4. Security: The large head helps prevent the bolt from loosening, making them reliable for outdoor applications where elements can cause movement.
- 5. Compatibility: The square or hexagonal head design allows for use with a wrench, providing a strong grip and ease of tightening.
- 6. Variety: They come in a range of sizes to accommodate different materials and loads, offering flexibility in project design.
Application Places
-
Secure and Robust Connection:
- Woodwork and Furniture Making: Carriage bolts are ideal for woodwork, providing a strong hold without the need for a nut, which is particularly beneficial in furniture making where a clean, uninterrupted surface is desired.
Versatile Applications:
- Attaching Metal to Timber: They are commonly used to attach metal plates or brackets to timber, offering a secure connection between dissimilar materials that is resistant to movement or loosening over time.
Exterior Fastening:
- Fences and Gates: Carriage bolts are perfect for fastening exterior features like fences or gates due to their weather-resistant coatings, which protect against the elements and ensure long-lasting performance.
Machinery Assembly:
- Securing Machinery Parts: In machinery assembly, carriage bolts are used to secure moving parts or where a strong, non-loosening connection is necessary, providing a reliable fastening solution that can withstand the rigors of mechanical stress.
Structural Fastening:
- Structural Elements: They are also used for fixing structural elements such as beams or trusses, where the integrity of the connection is paramount to the stability and safety of the structure.
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hengwang cable company has passed ISO9001 quality management system, ISO14001 environmental management system, ISO45001\German TUV certification\CE certification, the company is a finalist for the state power grid and a national”High-tech Enterprise.
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