These steel Grade 5 flange bolts have a hexagonal head for use with a wrench. They fasten metal-to-metal areas in machinery and moving systems. They have a low profile, which allows them to be used in small spaces like elevators and manufacturing assemblies. These flange bolts come in a zinc-plated finish for high corrosion resistance.

Grade 8 bolts have a hexagonal head for use with a wrench. These bolts are heavy-duty flange fasteners for military, aerospace, or marine metal-to-metal connections. These bolts can withstand high stress and strong load-bearing pressures. These flange bolts come in a black oxide finish for corrosion resistance in dry environments. They can also be phosphate and oil-treated to prohibit rust in dry environments.

These 8.8 standard flange bolts have a hexagonal head for use with a wrench. They come in a zinc-plated or zinc yellow finish for high corrosion resistance. 

These 10.9 standard flange bolts have a hexagonal head for use with a wrench and come in a black oxide finish.

Grade 5 serrated flange bolts have a hexagonal head for use with a wrench and are armed with teeth-like serrations that grip into surfaces to resist vibration. These flange bolts come in a zinc-plated finish for high corrosion resistance. 

These 12-point steel head cap screws are strong, durable, and often used with heavy loads in harsh environments. They have a flange that helps distribute loads evenly and tighten with a 12-point socket wrench that provides high torque for more secure connections.