Access panels and other light-duty fastening tasks can be completed using these screws. Their large, flat sides prevent them from turning in square holes and make them easier to hold with a wrench. 

These Grade 5 steel screws can be used to secure the majority of machinery and equipment. Their large, flat sides prevent them from turning in square holes and make them easier to hold with a wrench.

These Grade 8 steel screws are suitable for high-stress applications like motors, pumps, valves, and suspension systems in automobiles. Their large, flat sides prevent them from turning in square holes and make them easier to hold with a wrench. 

These Low carbon steel screws are suitable for Access panels and other light-duty fastening tasks. Their large, flat sides prevent them from turning in square holes and make them easier to hold with a wrench. 

These 8.8 steel screws can be used to secure the majority of machinery and equipment. Their large, flat sides prevent them from turning in square holes and make them easier to hold with a wrench.

These 10.9 steel screws are suitable for high-stress applications like motors, pumps, valves, and suspension systems in automobiles. Their large, flat sides prevent them from turning in square holes and make them easier to hold with a wrench.