Banjo Bolts

Banjo Bolts are specialized fasteners used in various automotive applications, particularly in hydraulic systems. A banjo bolt is a hollow bolt with a hole drilled through its length and one or more holes drilled perpendicular to the main bore. This unique design allows fluid to pass through the bolt, making it an essential component for connecting brake lines, fuel lines, and other fluid transfer systems. These bolts are commonly used in conjunction with a banjo fitting, which is a cylindrical component with an inlet and an outlet for fluid flow. The banjo fitting is placed over the banjo bolt, and the entire assembly is then secured to the component, such as a brake caliper.

The proper function of a banjo bolt assembly relies on a secure, leak-free seal. This is typically achieved by using two crush washers, one on each side of the banjo fitting, between the bolt head and the component housing. When the banjo bolt is tightened, the crush washers deform slightly, creating a tight seal that prevents fluid leaks. Banjo bolt brake line connections are particularly critical for the safe operation of a vehicle's braking system, so using the correct size and type of hollow bolt and crush washers is paramount. These automotive fasteners are vital brake system components, ensuring the integrity of the hydraulic system.