The Asimeto Plug Thread Gauge from the 695 Series is a precision internal-thread measurement tool designed for quick, reliable checks of 1/4 x 20 UNC holes. Built for machinists, quality control technicians, and assembly engineers, it delivers consistent results that you can trust on every part.

• Thread Size: 1/4 x 20 UNC, right-hand threads for accurate evaluation of standard coarse threads.
• Internal Thread Class: 2B tolerance to ensure correct engagement with mating parts and reliable go/no-go assessment.
• Standards Covered: Conforms to UNC, UNF, and UNEF thread standards, supporting a range of common internal hole measurements.
• Construction: Robust steel body with a textured, durable finish and a prominent red indicator band for easy handling and orientation.
• Tapered Design: Gentle taper aids smooth insertion into threaded holes, enabling fast, repeatable checks without cross-threading.
• Ergonomic Handling: Integrated grip area and a color-coded feature to simplify seating and reduce user fatigue during frequent inspections.

Using this gauge, you can quickly determine whether a hole’s threads fall within specification, accelerating inspection cycles and reducing guesswork. The tight 2B tolerance supports consistent thread mating, helping prevent assembly delays and downstream rework. Ideal for production floors, maintenance shops, and precision manufacturing, this gauge provides dependable measurements for 1/4-20 UNC holes and related internal thread applications. For best results, pair it with a clean, debris-free hole and perform insert-and-remove checks to confirm fit across multiple components and assembly scenarios.