A Thread Calculator is a specialized tool used by machinists, engineers, and DIY enthusiasts to calculate precise thread dimensions for bolts, screws, and other fasteners. It provides details on thread pitch, major and minor diameters, and thread depth for various thread types, such as Metric, Unified National Thread (UN), and British Standard Thread (BST). This tool ensures accurate measurements for machining, manufacturing, and assembly, reducing the risk of misalignment or mechanical failure.
Select Thread Type: Choose the type of thread you need to calculate, such as Metric, UN, or British Standard. Input Diameter and Pitch: Enter the nominal diameter and pitch of the thread. For metric threads, use millimeters; for imperial threads, use inches. Choose Tolerance Class: Select the tolerance class for internal or external threads, based on your requirements. Calculate Major and Minor Diameters: Use the calculator to determine the major, minor, and pitch diameters for both internal (female) and external (male) threads. View Thread Depth and Pitch: Check thread depth, pitch, and other details like flank angles for precise threading. Refer to Recommended Tolerances: Use suggested tolerances based on application requirements to ensure fit and function. Save or Print Results: Save or print the calculated thread dimensions for reference in your machining or assembly process. Use in Real-Time Machining: Apply the calculated thread measurements directly to your machining setup for accurate thread cutting.