Free Automotive Calculators & Reference Tools
Welcome to UK Motor Factors' collection of professional automotive calculators and reference tools. Whether you're a mechanic, engineer, or DIY enthusiast, our free tools help you work faster and more accurately. All calculators are mobile-friendly and work instantly in your browser.
Bolt Size Calculator
Identify bolt sizes from head measurements. Works with metric and imperial bolts.
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Thread Pitch Identifier
Determine thread pitch (coarse or fine) for metric and imperial threads.
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Torque Converter
Convert between Nm, ft-lbs, and in-lbs instantly.
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Drill Size for Tap
Find the correct drill size for tapping threads.
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Stud Length Calculator
Calculate required stud length for through-hole applications.
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Socket Size Finder
Find the correct socket size for any bolt or nut.
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Wrench Size Guide
Quick reference for wrench sizes across different standards.
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Bolt Grade Strength
Look up tensile strength for different bolt grades.
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Metric to Imperial Converter
Convert between metric and imperial measurements.
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Bolt Torque Specifications
Standard torque specs for common bolt sizes.
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Nut & Bolt Compatibility
Check if nuts and bolts are compatible.
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Allen Key Size Chart
Reference chart for hex/Allen key sizes.
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Washer Size Calculator
Find the correct washer size for your application.
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Clearance Hole Calculator
Calculate proper clearance hole sizes.
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Lock Nut Selection Guide
Choose the right lock nut for your application.
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Fastener Material Guide
Reference for fastener materials and properties.
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Thread Engagement Calculator
Calculate minimum thread engagement depth.
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Helicoil Size Guide
Find the correct Helicoil insert size.
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Screw Thread Chart
Complete reference chart for screw threads.
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Bolt Head Styles
Visual guide to different bolt head types.
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Anchor Bolt Calculator
Size and depth calculations for anchor bolts.
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Set Screw Selection
Choose the right set screw type and size.
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Cap Screw Guide
Reference for socket cap screw dimensions.
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Machine Screw Chart
Comprehensive machine screw size chart.
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Self-Tapping Screw Guide
Selection guide for self-tapping screws.
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Wood Screw Size Chart
Complete reference for wood screw sizes.
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