Spring pin is the pivot and attachment point used on many leaf spring suspensions. Spring pins are manufactured using high grade steel, hardened and it may be either threaded or smooth surface. Spring pins are drilled and tapped for grease and may have channels in the body to effectively deliver grease to the spring bushes. Leaf spring pins may have notches cut into them where bolts are used to lock them into place and keep them centered.
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A Hub Bolt typically refers to a type of fastener used in mechanical applications, often to secure components like wheels to a hub or to fasten parts of machinery. Hub bolts are usually designed to withstand significant loads and stresses, making them crucial for safety and functionality.
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U-Bolt is a type of fastener shaped like the letter "U." It's typically used to secure components to a vehicle's frame or axle, such as suspensions, exhaust systems, or leaf springs.
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Center bolt is one of the most important piece in a leaf spring assembly. At the center of each leaf is a hole. The bolt gets slotted through this hole in each of the leaves that comprise a spring. The center bolt holds the leaves together and puts them in contact with the axle. The head of center bolt connects to the axle, which gives the truck its suspension in combination with the leaf springs.
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