30 Piece Folding Screw Pitch Gauge Set for Accurate Thread Measurement

Imperial Multi Gauge - Stainless Steel - Thread & Pitch Identification Gauge

Faithfull Screw Pitch Gauge - 52 Metric & Whitworth Thread Tool

52 Blade Screw Pitch Thread Gauge for Measuring Imperial/Metric Nuts & Bolts

Faithfull Screw Pitch Gauge for Accurate Measurement of Metric and American National Threads

Metric Multi Gauge - Stainless Steel - Thread & Pitch Identification Gauge