Basic Information

Normal Sizes: M5-M12

Material: Carbon Steel, Stainless Steel

Surface Treatment: Zinc, YZ, BZ, HDG, E-coat, Ruspert, Black

Brief Introduction

Coach screws, also known as lag screws or lag bolts, are heavy-duty wood screws with a sturdy construction. These screws typically feature coarse threads and a sharp point, designed for fastening wood to wood or wood to metal. The large size and coarse threads provide excellent grip and holding power, making coach screws suitable for applications requiring a strong and secure connection. They are commonly used in construction, woodworking, and various structural projects where durability and stability are crucial.

Functions

Coach screws serve several functions in various applications:

Wood Joinery: Coach screws are commonly used for joining heavy timber components in construction and woodworking projects. Their coarse threads provide a strong grip in wood, creating a secure and durable connection.

Structural Support: These screws are often utilized in structural applications where a robust fastening solution is needed. They help provide stability and support in structures such as wooden beams, frames, and other load-bearing elements.

Outdoor Construction: Due to their durability and resistance to corrosion, coach screws are suitable for outdoor projects. They are commonly used in decks, fences, and other outdoor structures where exposure to the elements requires a reliable fastening method.

Metal-to-Wood Connections: Coach screws with the appropriate specifications can be used to fasten metal components to wood. This versatility makes them valuable in projects that involve both wood and metal elements.

Securing Hardware: They are often used to secure hardware components, brackets, or other fixtures to wood, providing a strong and stable attachment.

DIY and Home Improvement: Coach screws are popular in do-it-yourself (DIY) projects and home improvement tasks, especially when a heavy-duty fastening solution is required.

Advantages

Coach screws offer several advantages, making them a preferred choice in specific applications:

Strong Fastening: Coach screws provide a robust and secure connection due to their coarse threads and large size. This strength is particularly beneficial in applications where a reliable and durable fastening solution is essential.

Versatility: They are versatile fasteners suitable for various materials, including wood and metal. This versatility makes coach screws valuable in projects that involve multiple materials or require a combination of strength and adaptability.

Ease of Installation: Coach screws are relatively easy to install, especially in comparison to other heavy-duty fasteners. Their design, featuring a pointed tip and coarse threads, facilitates efficient penetration into wood or other materials.

Durable Construction: Typically made from durable materials such as steel, coach screws exhibit resistance to wear and corrosion. This durability ensures a long-lasting connection, making them suitable for both indoor and outdoor applications.

Stability in Wood-to-Wood Connections: In woodworking applications, coach screws excel at creating stable and strong wood-to-wood connections. This is crucial in construction and carpentry projects where structural integrity is a priority.

Securing Heavy Loads: Due to their strength and stability, coach screws are effective in securing heavy loads. This makes them ideal for applications where weight-bearing capacity is a critical factor.

Reliable Outdoor Use: Coach screws are often used in outdoor projects such as decking and fencing. Their resistance to corrosion helps maintain the integrity of the connection even in environments exposed to the elements.

DIY Friendly: These screws are popular in do-it-yourself (DIY) projects because of their ease of use and effectiveness. DIY enthusiasts often find coach screws convenient for various home improvement tasks.

Applications

Coach screws find applications in various construction and woodworking scenarios due to their strength and versatility. Some common applications include:

Timber Construction: Coach screws are widely used in timber construction for joining heavy timber components, such as beams and posts, where a strong and secure connection is crucial for structural integrity.

Decking Installation: They are employed in the construction of decks, securing deck boards to the underlying framework. The durability and resistance to corrosion make coach screws suitable for outdoor decking projects.

Fencing: Coach screws are utilized in fencing projects for fastening fence posts to horizontal rails or attaching fence panels securely. The strength of coach screws contributes to the stability of the overall fence structure.

Wooden Framing: In carpentry and framing applications, coach screws are used to connect framing members, providing stability and strength to the overall structure.

Wood-to-Metal Connections: Coach screws with the appropriate specifications are employed to fasten wood to metal or metal to wood, making them valuable in projects where both materials are involved.

DIY Projects: Due to their ease of use and versatility, coach screws are commonly chosen for various do-it-yourself (DIY) tasks. This includes assembling furniture, constructing garden structures, and other home improvement projects.

Securing Brackets and Hardware: Coach screws are used to securely fasten brackets, hardware, and other fixtures to wooden surfaces, providing a reliable attachment.

Roofing: In some roofing applications, coach screws may be used to secure components of the roof structure, especially in projects involving heavy roofing materials or where additional support is needed.

Construction of Play Structures: Coach screws are often employed in the assembly of outdoor play structures, ensuring a strong and stable connection for safety and durability.

Restoration and Renovation: During restoration or renovation projects, coach screws can be used to reinforce or replace existing fasteners, providing a reliable solution for maintaining or enhancing the structural integrity of a building or wooden structure.

Contact us:

Tel: 86 -0310-6716888

Mobile(WhatsApp): 86-13230079551; 86-18932707877

Email: dd@ddfasteners.com