Bolt Kit 6pc

The Wilwood Bolt Kit 6pc (Part No. 230-3328) is a precision brake hardware set engineered for high-performance braking systems. This six-piece kit contains 5/16-18 inch threaded hex-head bolts in natural steel finish, each measuring 0.75 inches in length. Designed specifically for rotor-to-adapter mounting applications up to 10.750-inch rotor diameters, these fasteners deliver the clamping reliability required in demanding brake installations where rotor runout and torque consistency are non-negotiable.

The 5/16-18 thread specification is the OEM standard for modern brake rotor retention across high-performance automotive and powersports applications. The hex head geometry enables controlled torque application without stripping, critical when securing rotors that must maintain absolute concentricity under extreme thermal cycling and friction load. The natural steel finish offers baseline corrosion resistance suitable for standard operating conditions; applications requiring enhanced protection in salt-air or high-moisture environments should consider stainless steel alternatives. The 0.75-inch length ensures proper clamping depth when fastening through adapter plates to hubs, preventing bottoming and thread galling—a common failure point in undersized hardware.

This kit serves brake system builders, performance automotive shops, motorsports teams, and experienced enthusiasts restoring or upgrading brake assemblies. The six-piece count covers a complete rotor set (front and rear paired rotors with spares), making this an efficient replacement or service hardware option. Precision brake hardware is not interchangeable; using OEM-spec fasteners ensures rotor stability, eliminates vibration, and maintains brake feel across all conditions.

Wilwood is recognized across the brake systems industry for manufacturing high-fidelity calipers, rotors, and related hardware engineered to professional performance standards. This bolt kit reflects that commitment to exact specification and reliability. Stocking verified OEM and OEM-equivalent brake fasteners eliminates the guesswork in sourcing critical hardware.