Heli-coil A1084-5CN150 Free Running Insert M5 X 0.8

Product Description

The HELI-COIL A1084-5CN150 is a free running wire thread insert designed to install into a drilled and tapped host bore, creating a strong metric coarse thread in metal, plastic, or composite base materials. It accepts M5 x 0.8 fasteners and measures 15 mm (0.5906 inches) in overall insert length, placing it in the 3D length-to-diameter ratio class. Manufactured from 304 stainless steel with a bright, uncoated finish, it delivers corrosion resistance without added surface treatments. Machinists, maintenance technicians, and assembly specialists use these inserts to restore stripped threads or establish durable new threads in parts that see repeated fastener engagement.

This insert is suited for precision thread repair and thread reinforcement applications in both light manufacturing and field maintenance environments. The tanged drive design allows installation with a standard HELI-COIL or compatible tang-drive installation tool, then the tang is broken off after seating. Applications span aerospace, automotive, industrial equipment, and general mechanical assemblies where a metric coarse M5 thread is required and long-term fastener retention is critical.

Key Features

• M5 x 0.8 metric coarse thread size for broad fastener compatibility
• 15 mm overall insert length at a 3D length-to-diameter ratio for deep thread engagement
• Tanged design for precise installation depth control using a tang-drive tool
• 304 stainless steel construction for corrosion resistance in demanding environments
• Bright, uncoated finish with 15-1/8 free coils for consistent spring-lock action

Compatibility

Designed for use in any drilled and tapped bore prepared to accept an M5 x 0.8 metric coarse free running wire thread insert, following the corresponding HELI-COIL drill and tap specifications for the host material.

Installation Notes

Installation is performed by qualified machinists or maintenance technicians using a compatible tang-drive installation tool sized for M5 inserts. The host bore must be drilled and tapped to the correct HELI-COIL insert tap specification before installation. After driving the insert to the correct depth, break off the drive tang using a tang break-off tool. Always de-energize or lock out any equipment before performing thread repair on components in service.