Installing key locking inserts (like Keensert, Recoil, or other brands) requires specific tools designed for their unique locking mechanism. Here's a breakdown of the essential special tools:
You absolutely need:
The Correct Special Tap (for the insert's external thread).
The Correct Staking Tool (impact, screw-driver, or key driver type - specific to the insert's size and locking mechanism).
Highly Recommended:
Insert Driver Mandrel (for safe and straight installation).
Additional Considerations:
Manufacturer Kits: Most reputable key locking insert suppliers (like Stanley Engineered Fastening for Keensert, Recoil, etc.) sell complete installation kits. These kits include the taps, staking tools, driver mandrels (often combined with the staking tool), installation instructions, and usually a selection of inserts. This is often the most practical and foolproof way to get started.
Thread-Locking Adhesive: While the keys provide the primary mechanical lock, some applications or manufacturers recommend applying a thread-locking adhesive (like Loctite) to the external threads of the insert before installation for added security and sealing.
Torque: Follow the manufacturer's recommended installation torque for threading the insert into the tapped hole using the driver mandrel. Over-torquing can damage the insert or parent material.
Instructions: Always follow the specific installation instructions provided by the insert manufacturer. Procedures can vary slightly between brands and insert series.
By using the correct specialized tools and following the procedures, key locking inserts provide an extremely strong and reliable threaded connection in a wide variety of materials.