UNC / UNF Helicoil STI Thread Plug Gauge GO / NO-GO (#1–3/4")
UNC / UNF Helicoil STI Thread Plug Gauge GO / NO-GO (#1–3/4")
The UNC / UNF Helicoil STI Thread Plug Gauge GO / NO-GO is designed for accurate inspection of internal STI threads for Helicoil and wire thread insert applications. It is used to verify the tapped thread before installation of the thread insert, ensuring that the STI thread meets the required dimensional limits.
Each gauge features separate GO and NO-GO checking ends, providing a fast and reliable inspection method for production, machining, and quality control applications.
Key Features
- GO / NO-GO STI thread plug gauge
- For checking internal threads designed for Helicoil / wire thread inserts
- UNC and UNF STI threads
- For inspection before installation of the thread insert
- Available in 2B and 3B tolerance classes, depending on size
- Right-hand thread
- Size range: #1-64 to 3/4"-16
- Quick and reliable thread inspection
- Suitable for production and quality control applications
Certification
Most gauges are supplied with a manufacturer’s inspection certificate. An accredited laboratory calibration certificate is available upon request at an additional cost.
Applications
- Inspection of tapped holes for Helicoil / wire thread inserts
- Verification of UNC / UNF STI threads prior to insert installation
- CNC machining quality control
- Production line inspection
- Incoming and final inspection