Steel U-bolt mounting plates attach to U-bolts to fasten objects to ceilings or walls. The mounting plates allow the U-bolts to hold heavier objects than just a nut provides. Mounting plates come in a black oxide finish, which is corrosion resistant in dry environments, a zinc-plated finish, which is corrosion resistant in wet environments, or can be hot dipped galvanized for extra protection in wet environments. The U-bolts are also available in 304 stainless steel.

Square U-bolts suspend flat-bottomed objects from ceilings and walls. U-bolts are fastened with nuts for a tight connection. They are stronger than routing clamps and hangers and are corrosion resistant if made of galvanized steel or coated with zinc. Zinc-plated U-bolts are corrosion-resistant in wet environments. These U-bolts may also be hot dipped galvanized for extra corrosion resistance. Other types of U-bolts are made of aluminum for light-duty lifting, while 304 stainless steel U-bolts are also resistant to chemicals.

Cushioned U-bolts absorb friction, reduce vibration, and support heavy loads hanging from ceilings, mounted on walls, and attached to pipes. They fasten with nuts for a tight connection.

Vibration-dampening U-bolts, also known as vibration-damping U-bolts, are wrapped in a plastic cushion to minimize movement and noise. These U-bolts have nylon-threaded nuts that resist loosening when used in equipment that vibrates. These U-bolts are used in heavy-duty construction where metal-to-metal fastening is required. A zinc-plated finish on these bolts makes them corrosion-resistant in wet environments, and they are available in 316 stainless steel.