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.

These screws come with a traceable lot number and a physical and chemical test report. Use them for high-strength fastening.

About half as strong as medium-strength steel screws, these screws can be used for light duty fastening applications, such as securing access panels.

Twice as strong as low-strength steel screws, these Grade 5 screws are suitable for fastening most machinery and equipment. The flange distributes pressure where the screw meets the surface, so you don’t need a separate washer.

Twice as strong as low-strength steel screws, these Grade 5 screws are suitable for fastening most machinery and equipment. Serrations under the head grip the surface of your material to help resist vibration. The flange distributes pressure where the screw meets the surface, so you don’t need a separate washer.

Made from Grade 8 steel, these screws are at least 25% stronger than medium-strength steel screws. They can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. Serrations under the head grip the surface of your material to help resist vibration.

These Grade 5 steel screws are over 70% stronger than our stainless steel wire-lockable hex head screws. Wire these screws together through the hole in the head to get more vibration resistance than any other screw.

Also known as Sems screws, these screws have a washer that’s permanently attached but rotates freely. The washer has sharp teeth around the outside edge that bite into the screw and the material it's installed on for vibration resistance. Twice as strong as low-strength steel screws, these Grade 5.1 screws are suitable for fastening most machinery and equipment.