Choose these metric bolts for fastening most machinery and equipment. They are twice as strong as low-strength steel bolts. Carriage bolts have a smooth, rounded head for a finished look. The square neck keeps these bolts from turning when tightening a nut.

Made from Grade 8 steel, these bolts can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. Carriage bolts have a smooth, rounded head for a finished look. The square neck keeps these bolts from turning when tightening a nut.

More corrosion resistant than 18-8 stainless steel bolts, these bolts have excellent resistance to chemicals and salt water. Carriage bolts have a smooth, rounded head for a finished look. The square neck keeps these bolts from turning when tightening a nut.

These bolts are suitable for fastening most machinery and equipment. Carriage bolts have a smooth, rounded head for a finished look. The knurled neck grips the inside of the hole to keep these bolts from turning when tightening a nut.

The most common heavy hex head screw, these steel screws meet ASTM A325 regulations for structural joints, such as mating I-beams and scaffolding.

50% stronger than our medium-strength steel heavy hex head screws, these screws meet ASTM A490 specifications for structural applications. Use them in joints that require more tensile strength than ASTM A325 screws.