Dual US and metric thread pitch measurement enables versatile use for various bolt sizes
Injection-molded construction ensures durability and long-lasting accuracy
Water, alcohol, oil, and grease resistance allows for use in tough workshop environments
Compact size fits easily in a pocket for convenient portability
No need to refer to external tables or perform trial-and-error measurements
Summarized by Shop
A must-have for any garage or workshop, this bolt size gauge is excellent for sizing bolts, screws, nuts (USS, SAE and Metric), washers (USS, SAE) and twist drills. A unique feature of this tool is that it has both US and Metric thread pitch injection-molded right into it! Simply hold up the threads of your bolt and quickly and accurately
Measurement Range
US SAE and metric thread pitch
Dimensions
8 5/8 in x 3 1/4 in
Material
Injection-molded plastic
Resistant to
Water, alcohol, oil, grease
Color
White
Summarized by Shop
4.8
101 ratings
5
4
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Best thing ive purchased for under $7 in a long time. Makes hardware runs a breeze
Sean · September 29, 2025
I liked it so much that I gave my son-in-law one!
J
Johnny · September 7, 2025
Bolt & Thread gauge
It's great, takes the "Guess work" out of what sizes are and if it's standard or metric plus how many thread per, course/fine. Definitely a time saver, highly recommend it 👍👍