70 Pcs Thread Checker Nut and Bolt Thread Checker Set with 37 Inch and 33 Metric Box Set Thread Gauge SAE and Metric Sizes Perfect for Tight Spaces Ideal for Bolt and Nut Size Checking

Effortless Access & OrganizationThe user-friendly design of the screw size gauge features a smooth black box with a foam storage rack, making it simple to access and store. ay goodbye to the inconvenience of trips to the hardware store when you can easily find the right size at your fingertips.
Three Reading MethodsThis bolt and nut identifier gauge offers three distinct ways to read sizes clearlythrough engraved markings on the gauges, easy-to-read stickers on the foam storage, and color coding (blue for standard sizes and red for metric), ensuring you have multiple options at hand.
High-Quality MaterialConstructed from premium aluminum, our thread gauges are designed for durability and longevity. The clear and lasting laser-etched markings on each gauge ensure they remain easy to read, providing reliable measurements every time you check bolt or nut sizes.
37 Standards Shown In Blue size2-56 UNC, 2-64 UNC, 3-48 UNC, 3-56 UNC, 4-40 UNC, 4-48 UNC, 5-40 UNC, 6-32 UNC, 6-40 UNC, 8-32 UNC, 8-36 UNC, 10-24 UNC, 10-32UNF, 12-24 UNC, 12-28 UNC, 1/4-20 UNC, 1/4-28UNF, 5/16-18 UNC, 5/16-24 UNF, 3/8-16 UNC, 3/8-24 UNF, 7/16-14 UNC, 7/16-20 UNF, 7/16-24 UNF, 1/2-13 UNC, 1/2-20 UNF, 9/16-12 UNC, 9/16-18 UNF, 9/16-20 UNF, 5/8-11 UNC, 5/8-18 UNF, 3/4-10 UNC, 3/4-16 UNF, 7/8-9 UNC, 7/8-14 UNF, 1-8 UNC, 1-12 UNC.