Top Carriage Bolt Supplier for Custom Non-Standard Fasteners

Carriage bolts are essential fasteners in construction, transportation, and agricultural equipment. As an experienced Carriage Bolt Supplier, we understand that global buyers require more than just standard parts; they need reliable, customized solutions. Our factory combines forging, cold heading, CNC machining, and stamping to create carriage bolts with superior mechanical properties. The square neck under the head prevents rotation when the nut is tightened, ensuring secure joints in wood-to-wood or wood-to-metal applications. We produce carriage bolts in diameters from M6 to M24 and lengths up to 300mm, with materials including carbon steel, alloy steel, stainless steel, and brass. Surface treatments such as zinc plating, hot-dip galvanizing, and black oxide enhance corrosion resistance, making our carriage bolts suitable for outdoor and marine environments. Our quality control team inspects every batch for dimensions, thread gauge, and tensile strength, complying with DIN, ANSI, and ISO standards. Whether you are in Europe, North America, or Southeast Asia, our carriage bolts meet your local market requirements. We also offer custom packaging and labeling to streamline your inventory management. Partner with us to reduce sourcing complexity and ensure a stable supply of high-quality carriage bolts.