Bolt Torque Calculator

How to Use This Bolt Torque Calculator

The Choice City Moto Bolt Torque Calculator is your go-to resource for accurate torque specs and bolt torque values. Whether you’re building a custom motorcycle, restoring a vintage bike, or maintaining your daily ride, our bolt torque calculator ensures every fastener is tightened to the correct torque specification for safety and performance.

• Select your bolt size and bolt class from the dropdown menus.
• Choose the thread material—the metal your bolt is threading into.
• Set your thread engagement (how deep the bolt is threaded in).
• Adjust the nut factor (K) for lubricated or plated fasteners if needed.
• Your safe clamp load and recommended torque will update instantly below.

This bolt torque calculator uses proven engineering formulas to compare thread pullout strength and bolt proof load, always providing the safest torque value for your specific application. Perfect for custom bike builders, restoration experts, and any rider who wants to torque motorcycle bolts right the first time.

Have questions about bolt torque specs, choosing the right bolt size, or improving your motorcycle fastener setup? Contact Choice City Moto, we’re here to help you build, wrench, and ride with confidence!