M8 Carriage Bolts and Screws Set - 21 Pcs M8x40mm Coach Screws With Cup Square Head, Flange Nuts, and Washers

• Sturdy and Durable Material: Carriage bolts are made of high-quality carbon steel, with a galvanized surface, which is scratch-resistant, corrosion-resistant, not easy to rust, not easy to break or deform, and has long-lasting durability and stability.
• Large Head Cup Square Carriage Bolts: The round head and square neck prevent the bolt from turning when tightening the nut, ideal for wood-to-wood connections, metal to metal, etc. The smooth and rounded mushroom head design prevents opening from the screw head side and helps to better grip the material.
• Flange Nuts and Washers: Flange nuts can make your installation more precise, tighten better, and carry larger loads; washers can increase the contact area, protect the bolts, extend service life, provide strong retention, and maximum clamping Tight force.
• Wide Range of Applications: Our coach bolts are suitable for use in machinery, wood, scaffolding, vehicle manufacturing, accessories, latches, doors, fence exteriors, and other fields. Suitable for manufacturing, glass fittings, metal fittings, wood applications, and metal applications.
• Package Includes: 21 pieces m8x40mm carriage screws, 1 x storage box; The storage box is equipped to help you organize the carriage screws, keep them organized, easy to access, easy to store, and easy to transfer.

What are the advantages of our round head screws? Carriage bolts are made of high-quality carbon steel with galvanized surface treatment, which is scratch-resistant, corrosion-resistant, not easy to rust, and has long-lasting durability and stability. Equipped with flange nuts and washers, providing more precise installation, protecting parts and hardware while being more stable. Round head and square neck prevent the bolt from turning when tightening the nut, perfect for wood-to-wood connections, metal to metal, etc. Smooth and rounded mushroom head design prevents opening from the screw head side and helps to better grip the material. Suitable for use in machinery, wood, scaffolding, vehicle manufacturing, accessories, latches, doors, fence exteriors and other fields. Features: Material: Carbon Steel Color: Silver Surface Treatment: Galvanized Package Includes: 21 Pcs - m8x40mm 1 - Storage Box Warranty after sale: If you have any questions, please contact us in time, and we will solve your questions ASAP. Warm Tips: Color may vary slightly from the online image due to your monitor color settings, please refer to the actual product, thank you for your understanding.