Irwin Metric Thread Pitch Gauge

A thread pitch gauge is used to determine distance between individual thread rises. This will then show many threads are present in a measured length of a screw or bolt. Whether using metric to measure in millimeters, or standard/SAE to measure in inches, this measurement is used to determine if a given screw or bolt has a coarse thread, or a fine thread.

This brass-plated gauge has 16 leaves, that measure from .35mm to 3mm spacing between threads.

• Metric thread guages
• 16 sizes, from 3.5mm to 3mm
• Brass plated for long service life