Products for bench top machinists | LittleMachineShop.com

BoltSize-It - Bolt and Nut Checker

BoltSize-It - Bolt and Nut Checker - Main image
$4.93 $6.95 In stock

Size bolt diameter by pushing bolt through sizing holes

Gauges hex nuts and washers (USS, SAE)

Gauges metric hex nuts and washers by holding under metric holes

Measure US and metric thread pitch

Special notch gauges flat headed metal and wood screws

Ruler marked with inches and millimeters

Sturdy and lightweight plastic resists water, alcohol, oil, and grease

Fits in shirt pocket (8-5/8" x 3-1/4" or 217 mm x 82 mm)

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Owen N. ★★★★★

Finally, a tool that actually tells me the thread pitch without squinting at a magnifying glass. This thing made quick work of sorting out all the random bolts from my last project.

Hazel ★★★★★

I was tired of guessing which nut or bolt I needed for repairs, but this checker’s thread pitch gauge makes it so easy, I finished my project in half the time.

Leo ★★★★★

Finally a tool that handles both metric and SAE in one place, the thread pitch gauge is a lifesaver for my random bolt bin. It took me less than a minute to identify a mystery nut I've been tripping over for months.