E-z Lok 650-6 Thread Locking Insert M6x1 3/8-16 Standard Wall

Product Description

The E-Z LOK 650-6 is a standard wall thread locking insert designed to create a strong, permanent internal thread in materials that require a metric internal thread mated to a unified external thread. The insert features an M6 x 1.00 internal thread and a 3/8-16 external thread, allowing technicians to install a metric-threaded fastener interface into a tapped hole cut for a 3/8-16 tap. Manufactured from C12L14 carbon steel with a smooth rolled finish, the 650-6 measures 0.406 inches in overall length. It is suited for use in metal fabrication, repair, and assembly applications where thread conversion or thread repair is required.

This insert is commonly used in industrial maintenance, mechanical assembly, and repair applications where a parent material has a stripped or undersized thread that must be restored or converted. The M6 x 1.00 internal thread accommodates standard metric coarse and metric fine thread fasteners. The 3/8-16 external thread engages a standard tapped hole, making this insert a practical solution for thread conversion work in steel or other machinable materials. Installation is performed using standard tooling compatible with 3/8-16 tapping.

Key Features

• M6 x 1.00 internal thread with Class 2B fit for reliable metric fastener engagement
• 3/8-16 external thread with Class 2A fit installs into a standard tapped hole
• Standard wall design suits typical material thickness applications
• C12L14 carbon steel construction provides strength and machinability
• Smooth rolled finish on external thread surface
• Compatible with both metric coarse and metric fine thread standards on the internal side

Compatibility

Designed as an OEM-style thread locking insert for use with standard 3/8-16 tapped holes requiring an M6 x 1.00 internal thread interface. Compatible with applications requiring a standard tap type.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using standard tapping tools sized for 3/8-16 threads. Power down all equipment and secure the workpiece before tapping and inserting. Ensure the parent material hole is properly tapped and deburred before driving the insert to full depth. Do not exceed the insert length when selecting parent material depth to avoid incomplete thread engagement.