Twice as strong as low-strength steel screws, these Grade 5 screws are suitable for fastening most machinery and equipment.

Made from Grade 8 steel, these screws can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws.

The most commonly used heavy hex head screw, these medium-strength steel screws are strong enough to join I-beams and scaffolding. They meet ASTM A325 and ASTM F3125 standards for structural applications.

Made from Grade 8 steel, these screws can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws. The flange distributes pressure where the screw meets the surface, so you don’t need a separate washer.