Thread series cover how diameter/pitch combinations are measured by the number of threads per inch (TPI). Get your free thread pitch charts here.
Metric Bolt Thread Pitch Chart
Metric Threads: Dimensions, Classes & Formulas (full Guide)
Thread Data Charts-FINE PITCH (BSF) BRITISH THREAD DATA CHART
Metric Thread Pitch Table - Monster Bolts
Hydraulic Fitting Thread Chart
Thread Pitch Chart - Metric and Imperial
Thread Chart (Metric) Major and Minor Diameters
Machinist Shop Manual & Charts, Decimal Equivalents, Thread Pitch US & Metric
ISO 724 - Metric Threads
Fastenerdata - THREAD CHART 10b - Fastener Specifications