Best Bolt Gauges of 2026

Maximize accuracy in your life with a set of WEN Metal Thread Pitch Gauges. This pair of instruments provides a variety of measuring solutions, including threads, angles, conversions, and more.

JoblikeBrez Thread Gauge is a precision tool that simplifies identifying 30 nut and bolt thread sizes, adhering to ANSI standards for accurate sizing. By matching your hardware with the corresponding slots, you can effortlessly determine the size and pitch, eliminating guesswork. Crafted from durable aluminum, it includes drill gauges for added functionality. With its intuitive design and easy-to-read markings, even beginners can use it with ease. The versatile mounting options make it convenient for both hanging on a wall and placing on any surface while working.

The Stainlesstown Nut Bolt Thread Gauge is a versatile tool that allows you to measure the diameter, thread pitch, and length of nuts, bolts, and screws. With the ability to measure both fractional and metric bolts, this gauge covers a wide range of sizes, from #4 to 1" and 3mm to 22mm. Made of durable 1/4" thick hard plastic, this gauge is built to last. Its compact size, measuring 1/4" thick x 8-3/4" long x 3-3/8 wide, makes it easy to carry and store. Whether you are a DIY enthusiast or a professional, the Stainlesstown Nut Bolt Thread Gauge is a must-have tool that will save you time and effort in accurately determining the dimensions of your fasteners.

Manalete Bolt Thread Gauge is an excellent identification tool that quickly identifies 28 different sizes of bolts and nuts in both inch SAE and metric threads. The durable thread checker is made of high-quality materials ensuring maximum thread strength and precision accuracy. The easy-to-read markings with white lettering on a red background make identification quick and accurate. Its convenient design with pre-drilled mounting holes allows for easy storage and portability, making it a must-have tool for professionals and DIY enthusiasts.

The Manalete Thread Checker Kit offers a versatile set of 55 detachable gauges, making it easy for you to quickly find the exact thread size you need, even in tight or hard-to-reach spots. Its lightweight and flexible design stands out from traditional bulky tools, providing convenience during inspections. Crafted from high-quality aluminum, this kit ensures precise and reliable measurements that meet industry standards, so you can avoid guesswork and mismatched parts. Additionally, it features three clear ways to read thread sizes—engraved dimensions, a printed chart, and labels on the foam holder—helping you identify sizes quickly and efficiently for both professional and DIY use.

The Manalete Thread Checker is a handy tool that helps you quickly identify the size of screws, bolts, and nuts with ease. It includes 45 thread gauges covering both standard inch and metric sizes, so you can work efficiently without guessing. This tool saves you time by eliminating the need to search through containers for the right fastener, especially when dealing with hard-to-remove nuts or bolts. Made from durable steel, each gauge is clearly labeled and can be rotated for easy reading. Plus, its hanging design lets you keep it organized and within reach in your workspace.

The Manram Thread Checker is a handy wall-mounted tool that helps you quickly identify various bolt and nut thread sizes with ease. Its durable construction ensures it can handle frequent use without losing accuracy, making it a reliable addition to your workshop. Thanks to its compact design, it can be conveniently mounted on your wall, saving workspace and keeping it within easy reach. This tool covers a broad range of common thread sizes, including both metric and standard types, so you can confidently find the right thread size and pitch every time. It’s a practical solution that simplifies your work and saves you time.

The Manalete Thread Checker is an essential tool for anyone working with nuts and bolts. With 26 gauges, including both inch and metric sizes, you can quickly determine the dimensions of your fasteners, saving you time and effort. No more rummaging through containers; this tool allows you to verify thread sizes before starting a project, especially beneficial for hard-to-reach bolts. Made from high-quality stainless steel, it resists rust and wear, ensuring durability. The clear labeling and hanging design make it easy to use and store, enhancing your overall efficiency in any task.

The XINRINTONG Bolt Thread Gauge is a handy tool that helps you quickly identify 34 different bolt sizes, including both metric and imperial threads. This means you can be sure your bolts fit perfectly without guesswork. Crafted with precision using CNC machining, it guarantees accurate measurements for internal and external threads, making your work more reliable. Its versatile design includes mounting holes for easy wall or toolbox installation, and dual-sided scales in centimeters and inches for convenient measuring. Plus, it comes with 19 drill bit gauges, so you can also measure drill sizes without extra tools. This gauge is perfect for anyone who wants organized, precise, and efficient hardware work.

The Giwaelro Thread Checker is designed to make identifying nut and bolt sizes quick and easy. Each gauge is stored separately in a foam case, allowing you to take only the pieces you need without carrying around the entire set, which is especially helpful in tight or hard-to-reach spaces. The gauges are color-coded—blue for inch sizes and red for metric—so you can easily tell them apart. Both sides of each gauge are laser-etched with size markings, saving you time by eliminating the need to flip the gauge around. Plus, you can read sizes in three ways: directly on the gauges, on a size chart, and on the foam case, making it simple to find the right size quickly.