Metric & Inch Nut and Bolt Thread Checker Set
🔩 Metric & Inch Nut and Bolt Thread Checker Set — Find the Thread Match Before You Buy
Stop guessing the size of that loose nut or bolt. This Metric & Inch Nut and Bolt Thread Checker Set helps you identify thread sizes, sort mixed hardware, and get a clearer reference for replacement parts. Keep it close to your workbench for home repairs and garage projects.

🔧 Check Nuts and Bolts with the Same Gauge
Thread a nut onto the external stud, or insert a bolt into the gauge's threaded opening. Turn gently by hand and look for a smooth match before reading the label. If the threads bind, stop and try another size instead of forcing the connection.

🔴🔵 Find Metric and Inch Gauges at a Glance
Red gauges identify metric threads, while blue gauges identify inch threads. Contrasting markings make the matched size easier to read, helping you distinguish fasteners that look similar but use different thread pitches.

📏 Compare Thread Sizes Before Choosing Parts
The assortment brings multiple thread diameters and pitches together for side-by-side checking. Use the marked gauges to narrow down an unknown fastener's specification. Match your required sizes to the confirmed contents of the set you select.

🚗 Make Replacement Searches More Specific
When a repair leaves you with an unlabeled fastener, check its thread before searching for a replacement. Recording the matched specification gives you more useful information than appearance alone. Also match the required fastener length, head style, material, and strength grade for the job.

🧰 Keep Your Thread References Organized
The storage case shown provides individual positions for the gauges, so you can return each one after checking a part. Use the set to organize reusable nuts and bolts into labeled bins and keep thread references ready for your next maintenance task. These gauges identify threads; they do not cut or repair them.

🚚 Shipping: US$5.99. Free shipping on orders of US$80 or more.
Give that drawer of mystery nuts and bolts a useful label. Add this thread checker set to your toolbox and start your next repair knowing the thread size you need.