Measuring your screw thread helps you determine the correct screw size you need. Check out our quick guide on how to determine your screw thread size.
A guide to measuring your screws correctly.
NOS Screw Chek'r # 36R SAE Screw Thread Size Gauge 1 to 5/16, 1/8 Inch Plastic
Basic Thread Concepts
Bolt Science - Basic Terminology related to Screw Threads
BA Threads - Classic Fasteners
Understanding Metric and Inch Thread Sizes in Fasteners
What are screw thread sizes?
Metric Screw Thread Chart, Tooling, Inc. - Axial Thread Rolling System - Metric Screw Threads
Determining Bolt & Nut thread sizes by RCF Bolt & Nut
Left-handed and right-handed fastener threads: Everything you need to know
How to Measure Screws & Bolts - US & Metric Sizing
Thread Sizes (Dimensions) Explained - Imperial & Metric Thread Sizes Chart
What is the difference between metric and standard fasteners?
Thread Size Chart – Grand Brass Lamp Parts, LLC.
