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- SUS304 STAINLESS BOLTS – Rustproof, precision-machined bolts that are up to 10× more durable than zinc or carbon steel—ensuring long-lasting Go/No Go thread accuracy.
- 6061 ALUMINUM BASE – This bolt size and thread gauge features an aerospace-grade 6061 aluminum board that’s lightweight, corrosion-resistant, and far more durable than plastic or steel.
- 28 METRIC & SAE SIZES – Identify M4 x 0.7–M14 x 2.0 and #6-32 to 1/2-20 threads with this compact screw thread gauge and bolt thread identifier.
- LASER-ETCHED DOUBLE SCALES – Inch and cm rulers are permanently engraved to resist fading, ensuring quick, accurate bolt and thread size checks every time.
- MOUNTABLE & PORTABLE – With pre-drilled holes and a compact profile, this thread checker tool goes anywhere your tools do—shop, truck, or toolbox.
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