The Original Thread Checker


MEASURING UNIT: Imperial (23 pc)
Sale price$55.00 NZD
In stock (43 units), ready to be shipped


The Original Thread Checker is an accurate and easy-to-use thread verifier for both nuts and bolts. Conveniently assembled onto a wire loop, it is especially well suited for distinguishing between similar inch and metric threads.

Made in U.S.A.


  • Each size has a nut and bolt checker on the same gauge

  • Thread sizes are permanently stamped onto each gauge

  • Inch gauges are clear zinc plated, metric gauges are black oxide

  • Wire cable with loop for convenient hanging 

SAE 23 Piece Set

Inch Sizes:

6-32 10-32 5/16-24 7/16-20 9/16-18 3/4-16
6-40 1/4-20 3/8-16 1/2-13 5/8-11 1-8
8-32 1/4-28 3/8-24 1/2-20 5/8-18 1-12
10-24 5/16-18 7/16-14 9/16-12 3/4-10  


Metric 21 Piece Set

Metric Sizes:

M3x0.5 M7x1.0 M10x1.25 M12x1.75 M16x2.0 M24x3.0
M4x0.7 M8x1.0 M10x1.5 M14x1.5 M20x1.5  
M5x0.8 M8x1.25 M12x1.25 M14x2.0 M20x2.5  
M6x1.0 M10x1.0 M12x1.5 M16x1.5 M24x2.0  


You may also like

Recently viewed