Description: Material: This thread measuring gauge is made of quality pp, ensuring durability and longevity. Product Dimensions: The size of the Nut and Bolt Thread Gauge is 22x8.5cm, making it compact and easy to carry around. Versatile Use: This Nut and Bolt Checker can be used to measure screw threads and nuts, making it a must have for any toolbox. Easy to Read: The Thread Checker features clear inch scale markings that are easy to read, ensuring accurate measurements every time. FeatureEasily measure both imperials and metric fasteners, as well as coarse and finethread. This durable gauge covers the diameter, pitchs, and length of most bolts, and screws. Specification: Material: PP Size Chart: 22cmx8.5cm or 8.66inchx3.35inch Package Includes: 1pcs Bolt Nut Thread Checker Note: Please allow slightly errors due to manual measurement and different monitors.