Description
Product Overview
The Dvvsav Bolt Size Finder Keychain is engineered for professionals and hobbyists who need rapid, reliable thread identification without the bulk of traditional gauges. Crafted from hardened stainless steel and an aluminum alloy body, the tool offers a corrosion‑resistant surface that stands up to daily wear in workshop, field, or garage environments. Its dual‑scale design presents clear metric measurements ranging from 8 mm to 25 mm and SAE sizes from 5/16 in to 1 in, allowing users to read thread dimensions at a glance. The compact form factor—measuring just 3.54 in on each side and weighing under 5 oz—means it can be attached to a keyring, belt loop, or bag strap, ensuring that accurate thread data is always within reach.
Usage
Whether you are assembling machinery, performing automotive repairs, or working on DIY furniture projects, the Bolt Size Finder Keychain simplifies the process of matching nuts and bolts. Simply slide the adjustable jaws to the thread’s outer diameter, align the appropriate scale, and read the size without the need for separate calipers or reference charts. Its lightweight construction makes it ideal for on‑site inspections where portability is essential, while the robust materials guarantee consistent accuracy even after repeated use. The tool is also valuable for educational settings, allowing students to explore thread standards hands‑on, and for inventory management in warehouses where quick verification of fastener specifications can reduce errors and improve efficiency.
Why Choose Us
Choosing the Dvvsav Bolt Size Finder means selecting a product that blends precision engineering with everyday practicality. Each unit undergoes a rigorous quality‑control process that verifies scale accuracy to within 0.02 mm, ensuring that measurements are trustworthy for critical applications. The combination of stainless steel and aluminum alloy not only provides a sleek, polished appearance but also delivers resistance to rust, dents, and scratches, extending the tool’s service life far beyond typical keychain accessories. Dvvsav stands behind its products with a responsive customer‑support team ready to assist with any questions, and offers a straightforward warranty that covers manufacturing defects, reinforcing confidence in the purchase.
Key Features
- Dual‑scale metric (8‑25 mm) and SAE (5/16‑1 in) markings for universal thread identification.
- Hardened stainless steel and aluminum alloy construction provides long‑lasting durability and corrosion resistance.
- Compact keychain size lets you carry the gauge wherever you work, eliminating the need for bulky tools.
- Adjustable jaws give quick, accurate measurements without additional equipment.
- Responsive Dvvsav customer support and warranty ensure peace of mind after purchase.
FAQ
How do I read the metric and SAE scales on the keychain?
Place the gauge’s jaws around the bolt or nut, then align the outer edge of the thread with the nearest marking on the appropriate scale. The metric scale reads in millimeters, while the SAE scale reads in inches; both are clearly labeled for easy interpretation.
Can this tool measure thread pitch as well as diameter?
The keychain is primarily designed to determine thread diameter. For pitch measurement, a dedicated thread pitch gauge is recommended, though the visual reference on the scale can help estimate common pitches.
Is the tool suitable for both stainless steel and coated fasteners?
Yes. The hardened stainless steel body resists wear from contact with various materials, and the aluminum alloy components are non‑reactive, making the gauge safe for use on coated, chrome‑plated, or galvanized fasteners.
What warranty does Dvvsav provide for this product?
Dvvsav offers a one‑year limited warranty covering any manufacturing defects. If you encounter an issue, contact the support team with your purchase details for a replacement or repair.




Nut and Bolt Thread Checker - 30 Standard and Metric Bolt Size Finder Bolt and Nut Identifier 15 Standard & 15 Metric Portable Thread Identifier Gauge with Hanging Hole (Circle Shape)
Reviews
There are no reviews yet.