Anytime you are working on a car or truck and need to secure a part, it is crucial that you use the right bolt or fasteners to hold the item correctly. The types of fasteners available vary in a lot of ways.
Exhaust Bolts
U-bolt fasteners are often used in the exhaust system. They can secure sections of exhaust pipe together and also attach the pipe to straps or hangers to keep it up tight to the car. The bolts are not typically hardened or even anything special, but they are shaped to fit around specific size pipes without crushing it. You can get them in many sizes and several different styles. Exhaust system u-bolts are inexpensive and available from any auto parts store.
U-Bolts for Universal Joints
Another common place a u-bolt is used in a car is around the universal joints that connect the driveshaft to the differential. The joints have round ends with bearing in them, and the u-bolts hold the round caps tight to the pinion yolk on the car. The u-bolts used in the application are small but very durable and will not break unless there is a lot of stress put on them. Often the universal joint breaks before the u-bolt breaks.
Leaf Springs
U-bolts are used to secure the leaf springs to the axle on cars and trucks that still use this suspension system. The u-bolts for this application are hardened steel and must meet a specific standard for durability. If these bolts shear off while the car or truck in is motion, the axle could come out from under the vehicle and cause a collision. You can get the right u-bolts for suspension systems from a spring manufacturer and some auto parts dealers. The bolts need to have the right diameter for the application as well as the proper tensile strength so be sure to specify the vehicle when you buy u-bolts.
Fastener Suppliers
For all the fasteners you need for your car, some manufacturers and re-sellers can help you find them. If you are looking for a u-bolt for a different project, the same supplier may be able to help you. U-bolts have many uses outside the automotive world as well as on cars, trucks, and SUVs. If you can not find the right u-bolt for your needs at a local supplier, the dealership for your make and model of car can more than likely help but expect the cost to be higher than if you use a private supplier to source your bolts.
