Thread Checker, 44 Nut and Bolt Thread Checker Individually Housed in Case, Bolt Size and Thread Gauge 23 Inch & 21 Metric, Suitable for Size Check in Tricky and Narrow Areas

★★★★★ 4.9 44 reviews

$16.28
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$16.28
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Free shipping Free 30-day returns

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Management number 210919285 Release Date 2026/04/04 List Price $6.51 Model Number 210919285
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  • 【Three Clear Ways to Read Sizes】Sizes are clearly marked in three ways: laser-engraved on the gauge, displayed on a size chart sticker, and printed on the foam padding. This ensures quick size identification, making it easy to find and match the correct size.
  • 【23 Inch & 21 Metric Sizes】The set includes 23 common inch sizes and 21 metric sizes, covering a wide range of applications: Inch sizes (Blue): 1-12, 1-8, 3/4-16, 3/4-10, 5/8-18, 5/8-11, 9/16-18, 9/16-12, 1/2-20, 1/2-13, 7/16-20, 7/16-14, 3/8-24, 3/8-16, 5/16-24, 5/16-18, 1/4-28, 1/4-20, 10-32, 10-24, 8-32, 6-40, 6-32. Metric sizes (Red): M3-0.5, M4-0.7, M5-0.8, M6-1.0, M7-1.0, M8-1.0, M8-1.25, M10-1.0, M10-1.25, M10-1.5, M12-1.25, M12-1.5, M12-1.75, M14-1.5, M14-2.0, M16-1.5, M16-2.0, M20-1.5, M20-2.5, M24-2.0, M24-3.0.
  • 【Quick Identification & Time Saver】Simply screw a nut or bolt onto the thread checker to instantly verify its size in seconds. No more trips to the hardware store to check sizes — quickly identify and replace damaged, rusted, or worn-out nuts and bolts, saving time and increasing efficiency.
  • 【Convenient Storage Case】Each thread checker is individually housed in a foam storage case, keeping nuts and bolts organized and easily accessible. This design allows you to quickly grab the required piece, especially in tight or hard-to-reach areas. No need to handle a bulky gauge set.
  • 【Laser-Etched Sizes on Both Sides】Each thread gauge features laser-etched sizes on both the front and back for easy readability. Sizes are color-coded , and the double-sided etching eliminates the need to flip the gauge around.
  • 【Well-Organized 44-Piece Set】This set includes 44 pieces of male and female gauges, covering the most commonly used sizes for mechanical work and DIY projects. It helps keep your nuts and bolts sorted, preventing misplacement and ensuring everything stays organized in the compartment case.

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4.9 out of 5
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44 ratings | 18 reviews
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