Metric Screw Thread Gauge G1/8–G13/8 Bolt Nut Measuring Tool
Bolt Nut Screw Thread Gauge – Metric Engineering Measuring Tool
Take the guesswork out of hardware identification with this handy Screw Thread Gauge. Whether you're a DIY woodworker, home repair enthusiast, or professional tradesperson, this compact checker lets you instantly identify bolt, nut, and screw specifications — so you always grab the right wrench the first time.
Key Features
- High-Quality PP Material: Crafted from durable polypropylene plastic for long-lasting, everyday workshop use.
- Wide Measurement Range: Covers G1/8 through G13/8 metric thread sizes, making it versatile for a broad range of fasteners.
- Clearly Marked Numbers: Each gauge slot is boldly labeled for fast, accurate identification at a glance.
- Portable Keyhole Design: Built-in keyhole allows you to hang it on a hook or attach it to a keyring — always within reach on the workbench or toolbox.
- Compact Size: Measures just 6.4 cm × 4.9 cm (2.52" × 1.93"), small enough to slip into any pocket or tool bag.
- Wrench Selection Made Easy: Quickly match nut specifications to the correct wrench size, eliminating rounding or slipping due to wrong-sized tools.
Specifications
| Material | High-quality PP (Polypropylene) |
| Measurement Range | G1/8 to G13/8 |
| Dimensions | 6.4 cm × 4.9 cm / 2.52" × 1.93" |
| Country of Origin | Made in China |
Package Includes
- 1 × Screw Thread Gauge Measuring Tool
Note: Please allow slight dimensional variance due to manual measurement. Colors may appear slightly different depending on your monitor settings.
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Frequently Asked Questions
Q: What thread sizes does this screw gauge measure?
A: This screw thread gauge covers metric sizes from G1/8 through G13/8, making it suitable for checking a wide range of standard bolts, nuts, and screws used in woodworking, plumbing, and general engineering applications.
Q: What material is the screw thread gauge made from?
A: The gauge is made from high-quality PP (polypropylene) plastic, which is durable, lightweight, and resistant to everyday workshop wear and tear.
Q: Is this gauge easy to carry to job sites?
A: Yes! The compact size (6.4 cm × 4.9 cm) and built-in keyhole design allow you to hang it in your toolbox, on a pegboard hook, or even clip it to a keyring for quick on-the-go access.
Q: How do I use the screw thread gauge to select the right wrench?
A: Simply slide the nut or bolt head through each labeled slot until you find the one that fits snugly. The marked size on that slot tells you the exact specification, so you can choose the correct wrench with confidence.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.