UK Motor Factors

Professional Automotive Tools & Calculators

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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 Grade Identifier

Identify bolt strength grades, torque specifications, and material properties. Covers SAE, metric, and UK bolt grades with head markings.

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Bolt Helper

Quick reference for bolt sizing, head types, and common applications. Perfect for selecting the right bolt for your project.

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Screw Length Calculator

Calculate the correct screw length for your application. Accounts for material thickness, thread engagement, and fastener type.

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Fastener Weight Calculator

Calculate the weight of bolts, screws, and other fasteners. Useful for inventory management and shipping calculations.

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Washer Matcher

Find the correct washer size for your bolts and screws. Includes flat washers, lock washers, and specialty washers.

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Thread Pitch Identifier

Determine thread pitch (coarse or fine) for metric and imperial threads. Measure threads per inch or millimeter.

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Thread Identifier Tool

Identify thread types, sizes, and specifications. Works with metric, UNC, UNF, BSW, and BSF threads.

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Tap Drill Calculator

Calculate the correct drill bit size for tapping threads. Includes metric and imperial thread standards.

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Drill Bit Chart

Comprehensive drill bit size reference chart. Converts between fractional, decimal, metric, and wire gauge sizes.

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Torque Converter

Convert between Nm, ft-lbs, and in-lbs instantly. Essential for accurate torque specifications.

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Torque Conversion Calculator

Advanced torque conversion with multiple units. Includes kgf·m, N·m, lb·ft, and more.

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Metric-Imperial Converter

Convert between metric and imperial measurements. Length, weight, volume, temperature, and more.

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Unit Converter

Universal unit converter for engineering and automotive applications. Covers length, area, volume, weight, and temperature.

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Wire Gauge Calculator

Calculate wire gauge (AWG) based on current, length, and voltage drop. Essential for electrical installations.

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Cable Lug Calculator

Select the correct cable lug size for your wire gauge and stud size. Includes crimp and solder lugs.

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Fuse Rating Calculator

Calculate the appropriate fuse rating for electrical circuits. Prevents overload and protects your equipment.

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Car Bulb Finder

Find the correct replacement bulb for your vehicle. Search by make, model, year, and bulb location.

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Battery Cross Reference

Cross-reference battery part numbers across different manufacturers. Find equivalent batteries quickly.

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Tire Size Converter

Convert between different tire size formats. Compare tire dimensions, diameter, and circumference.

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Tire Pressure Converter

Convert tire pressure between PSI, BAR, and kPa. Quick and accurate pressure conversions.

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Fuel Consumption Calculator

Calculate MPG, L/100km, and fuel costs. Track your vehicle's fuel efficiency accurately.

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O-Ring Calculator

Calculate O-ring sizes and groove dimensions. Find the right O-ring for hydraulic and pneumatic applications.

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Hose Clamp Calculator

Select the correct hose clamp size for your hose diameter. Includes worm gear and T-bolt clamps.

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Paint Coverage Calculator

Calculate how much paint you need for your project. Estimates coverage based on surface area and coats.

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Bearing Cross Reference

Cross-reference bearing part numbers across manufacturers. Find equivalent bearings from different brands.

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Stainless Steel Grade Guide

Reference guide for stainless steel grades. Properties, applications, and equivalent grades worldwide.

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