Nuts OT nuts 15 PCS Coach Bolts M8 x 40mm Cup Square Carriage Bolts and Hex Nylon Lock Nut Set Zinc Plated Carbon Steel Carriage Bolts for Wood Furniture Construction

• Practical Set: You'll receive 15 PCS M8 x 40mm galvanized coach bolts and 15 PCS M8 galvanized hexagonal locknuts. The carriage bolts are 8mm in diameter and 40mm in length. This comprehensive set is sufficient for everyday installation, repairs, and DIY projects, and is easy to use and ready to use.
• High-quality Materials: The m8 coach bolts are made of high-quality carbon steel, offering a durable, impact-resistant, scratch-resistant, and resistant to breakage and deformation. The galvanized surface creates a uniform, rust-resistant, corrosion-resistant coating, ensuring long-term stability in humid and outdoor environments.
• Round Head and Square Neck Design: The coach bolts m8 feature an integrated round head and square neck. The round head provides a smooth contact surface, while the square neck automatically locks into the wood when tightened, preventing rotation. This design is ideal for joining wood and metal, ensuring a secure, non-loose connection without requiring additional fixings during installation. Coach bolt is ideal for woodworking and metal assembly.
• Hex Nylon Lock Nut: The nut is embedded with a blue nylon ring, increasing friction with threads to prevent loosening from vibration or force, ensuring a secure, long-lasting connection. The precise hexagonal design lets tools apply force easily for uniform tightening; high-quality threads fit tightly with long bolts, enlarging contact area and improving load-bearing capacity. When used with dome head bolts, it evenly distributes pressure and enhances stability.
• Wide Application: This set of galvanized carriage bolts combined with hex nylon lock nuts is strong, durable, rust-resistant, and anti-loosening, making it suitable for various installation and fastening scenarios. Whether for wood connections, furniture assembly, fence construction, garage and shed reinforcement, machinery maintenance, metal structure assembly, or outdoor engineering projects, it delivers reliable fastening performance.

1. Coach bolts m8 are made of high-strength galvanized carbon steel, which is corrosion-resistant and impact-resistant, suitable for humid environments, and durable. 2. The Coach bolt feature a round head and square neck design for self-locking and anti-rotation, making them easy to install and optimized for wood-to-metal connections. 3. The precision hexagonal nut is easy to use, and the high-quality threads enhance engagement and support greater load-bearing capacity. 4. The dome head bolts are suitable for high-strength fastening needs in machinery, construction, auto repair, and carpentry. 5. Use the coach bolts with the hexagonal nut and tighten them securely into the fitting. 6. Check the threads before installation, avoid overtightening, and check the tightening status regularly. Product Specifications: Material: Carbon Steel Color: Silver Dimensions: M8x40 Package Includes: 15 PCS M8x40 mm galvanized carriage bolts 15 PCS M8 galvanized hexagonal locknuts Notes: 1. Due to manual measurement, please allow 1-2 mm deviation. 2. If you have any questions, please contact us and we will provide you with satisfactory service.