HELI-COIL Thread Gauge: Thread Gauge, Helical Inserts
The HELI-COIL Thread Gauge (MPN 3694-4) is an inch-system installation tool for helical inserts, designed for 1/4"-28 right-hand coarse external threads. It verifies thread compatibility for helical inserts…
SKU 3G-OTH-530979
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Product Description
The HELI-COIL Thread Gauge (MPN 3694-4) is an inch-system installation tool for helical inserts, designed for 1/4"-28 right-hand coarse external threads. It verifies thread compatibility for helical inserts, supporting accurate sizing during installation.
Frequently Asked Questions
What is the HELI-COIL Thread Gauge 3694-4 used for?
The HELI-COIL Thread Gauge 3694-4 is used to verify thread compatibility for helical inserts during installation. It checks that 1/4"-28 right-hand coarse external threads are correctly sized, helping ensure accurate insert seating in maintenance and repair applications across industrial equipment.
What are the specifications of the HELI-COIL Thread Gauge 3694-4?
The HELI-COIL Thread Gauge 3694-4 is an inch-system tool for helical inserts. It is compatible with 1/4"-28 right-hand coarse external threads. The tool type is a thread gauge, and the manufacturer part number is 3694-4. It is designed for use with HELI-COIL brand helical inserts.
Where to buy the HELI-COIL Thread Gauge 3694-4 worldwide?
3G Electric supplies the HELI-COIL Thread Gauge 3694-4 to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance for international delivery. Contact us to source this thread gauge for your helical insert installation needs.
How to use the HELI-COIL Thread Gauge 3694-4 for helical insert installation?
To use the HELI-COIL Thread Gauge 3694-4, first clean the tapped hole. Insert the gauge into the 1/4"-28 thread to verify it fits correctly before installing the helical insert. The gauge confirms thread size and pitch compatibility, reducing the risk of cross-threading or improper insert seating.
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Common applications for HELI-COILHELI-COIL Products
3G Electric supplies HELI-COIL installation tools for helical inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









