Features: Easily measure fasteners, as well as coarse and finethreads. This gauges cover the diameter, pitchs, and length of most nut, bolt, and screws. Make from quality plastic, this gauges is wear resistance, and precise positioning. Its temperature quenching make slip resistant andguarantees long service life. Whether you're a hobbyist or a professional in need of accurate measurements, this gauges is a tool for anyone working with bolt, screws, or nut. It simplifies the measurement of both imperials and metric fasteners, making your projects easy and more efficient. Crafted with precisions and durability in mind, this gauges combines cost saving manufacturing techniques with quality materials. Its constructions ensures it will last for year, providing accurate measurements. From auto repairs to home improvement projects, this gauges is indispensable for measuring bolt, screws, and nut of various size. It tests from#4 to 1" for length and 3mm to 22mm for metric fasteners. Specifications: Material: Plastic Measuring Range: About. 3mm-22mm Size: About. 220x85mm/8.66x3.35in Color: Orange/White/Black/Blue Package Includes: 1x Bolt Nut Gauges note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the items actual color.