Round Head Metric Carriage Bolts
Shop round head metric carriage bolts for secure fastening in wood, metal, and construction projects. These bolts feature a smooth, domed head and a square neck that locks into place during tightening.
Springs Fastener carries round head metric carriage bolts in multiple sizes and finishes. Choose individual packages or bulk quantities with tiered pricing.
Most orders ship within 24 hours. We ship across the United States.
Browse round head metric carriage bolts below. For inch sizes, see our carriage bolts page, or view all bolts for more options.
Why Choose Springs Fastener?
Shipping Details
Most orders ship within 24 hours. Shipping is available across the United States.
Comprehensive Inventory
Our extensive catalog includes fasteners in various materials, finishes, sizes, and grades.
Ease of Online Purchasing
We accept Visa, MasterCard, AMEX, and Discover.
Purchasing Options
Our fasteners are available in both individual packages and in bulk quantities with tiered bulk pricing.