Special Head Leaf Spring Center Bolts

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Special Head Leaf Spring Center Bolts are designed for leaf spring applications where a standard center bolt will not provide proper fit or engagement.

These bolts are commonly used when the axle seat center hole requires a larger diameter head, when caster shims are installed, or when a standard center bolt head is not long or wide enough to properly locate the axle.

A properly fitted center bolt is critical to maintaining correct axle alignment, preventing spring pack movement, and ensuring safe suspension operation. Special head center bolts provide the added head size and engagement needed for these demanding setups.

Common Applications Include:

• Axle seat holes requiring a larger diameter center bolt head
• Installations using caster shims
• Situations where a standard center bolt head is too short
• Custom or modified leaf spring packs

Why Use a Special Head Center Bolt:

• Ensures proper axle seating and alignment
• Prevents spring pack shifting under load
• Supports caster shim installations
• Improves overall suspension stability and safety

ATS Springs offers multiple sizes of special head leaf spring center bolts to match a wide range of suspension applications. Choosing the correct center bolt is essential for a proper and secure leaf spring installation.

If you are unsure which size or style is required for your setup, contact us and “Just Ask Bob” — our suspension specialists are happy to help you find the correct solution.