Trapezoidal thread form - Wikipedia
Guidelines for External Thread Production - Wagner Tooling Systems - English
Fastener Thread Designations and Definitions Pitch, Minor, Major Diameters
Vol. 12 Back to Basics Series! Screw Reference Dimensions | NBK | The Motion Control Components
Thread Pitch and Pitch Diameter - All America Threaded Products
Thread Calculator
TR knowledge base | Thread geometry - metric coarse
Vol. 12 Back to Basics Series! Screw Reference Dimensions | NBK | Couplings, Screws, Clampers
Common Thread Information: Diameters, Pitch, and Threads per Inch | GD&T Basics
SCREW THREADS
Fastenerdata - THREAD BASICS knf - Fastener Specifications
Thread rolling in nominal diameter - U-Bolt Europe
Thread Sizes | Types of Threads | Metric Thread Sizes Chart
Thread Sizes - Spraytech Systems
Dimensioning threaded fasteners | Engineering Design - McGill University
Determination of the Best Pitch Diameter and Thread Class for Your Application — Omnia MFG
ANSI External Screw Threads Size Tolerances Chart
Fundamentals of Basic Bolting – Part 2 - SmartBolts
What is the difference between the major and minor diameter of a screw? - Quora
What is the difference between the major and minor diameter of a screw? - Quora
Screw Threads: Types of Screw Threads & Terminology - PDF
Basic concept and nominal dimensions | Bossard Group
Basic Thread Concepts | Park Tool
Common Thread Information: Diameters, Pitch, and Threads per Inch | GD&T Basics
Thread Allowance (es) - Machining Doctor
Thread profiles - Determining variables on the thread
