Heli-coil A1185-2CN246 8-32 Unc Threaded Insert 0.246 in

Product Description

The HELI-COIL A1185-2CN246 is a tanged, free running wire thread insert designed to create or restore strong, permanent internal threads in materials that are too soft or too thin to hold standard fastener threads reliably. Manufactured from 304 stainless steel with a bright, uncoated finish, this insert measures 0.246 inches in overall length and accepts 8-32 UNC thread size. The 1-1/2D length-to-diameter ratio and 6 free coils provide solid thread engagement for high-stress fastener applications. Installation requires a standard HELI-COIL tap and installation tool.

This insert is suited for repair and original-equipment thread reinforcement across a wide range of industries including aerospace, automotive, electronics assembly, and general mechanical maintenance. It is commonly installed in aluminum, magnesium, cast iron, and plastic housings where thread pullout or cross-threading has compromised the original bore, or where a stronger thread is required by design. The tanged style allows positive driving during installation. Minimum order quantity is 10 inserts; this listing represents a single insert quantity.

Key Features

• 8-32 UNC thread size for standard inch-series fastener compatibility
• 304 stainless steel construction for corrosion resistance and durability
• 0.246 inches overall length with 1-1/2D length-to-diameter ratio
• 6 free coils provide consistent thread engagement across the insert length
• Tanged design for controlled installation with a standard driving tool
• Bright, uncoated finish - no surface treatment to interfere with thread dimensions

Compatibility

Designed as a free running threaded insert replacement for any application requiring 8-32 UNC internal threads with a 1-1/2D engagement depth. Fits bores prepared with the corresponding HELI-COIL 8-32 tap.

Installation Notes

Installation is performed by a mechanic, assembler, or maintenance technician using a properly sized HELI-COIL tap to prepare the host bore, followed by the correct installation tool to drive the insert to depth. Power down or de-energize any assembly before performing thread repair on live equipment. After seating, the installation tang is broken off with a tang break-off tool. Follow the fastener manufacturer and applicable industry guidelines for thread insert usage in structural or safety-critical joints.