Heli-coil A3585-2CN246 Screw-locking Insert 8-32 Unc

Product Description

The HELI-COIL A3585-2CN246 is a screw-locking helical coil insert designed to create strong, vibration-resistant threaded repairs and new thread installations in parent materials. The insert accepts an 8-32 UNC fastener and is wound from Grade 304 stainless steel wire, making it suitable for corrosive and high-temperature environments. At 0.246 inches overall length with a 1-1/2D length-to-diameter ratio, it delivers reliable thread engagement in compact bosses. The tanged design allows standard installation tooling to drive the insert to proper depth. Machinists, maintenance technicians, and field service professionals install these inserts in metal and non-metal workpieces where durable internal threads are required.

This insert is used in precision thread repair and original equipment manufacturing across industrial, aerospace-adjacent, and general mechanical applications. The 8-32 UNC thread is a common fastener size found in electronics enclosures, light mechanical assemblies, and instrumentation hardware. The bright finish on Grade 304 stainless steel provides a clean, non-oxidizing surface that integrates well with stainless and dissimilar metal parent materials. Install scenarios include restoring stripped threads in aluminum, steel, or plastic housings, or building durable threads into soft-material components during new fabrication.

Key Features

• Grade 304 stainless steel construction resists corrosion and elevated temperatures
• 8-32 UNC thread size suits a wide range of light mechanical and electronic assemblies
• 1-1/2D length-to-diameter ratio with 0.246-inch overall length for compact thread engagement
• Tanged design compatible with standard HELI-COIL installation tooling
• Maximum locking torque of 9 inch-pounds with minimum break-away torque of 1.50 inch-pounds
• Bright finish provides a clean, scale-free surface straight from packaging

Compatibility

Designed as an OEM-style screw-locking insert for use with standard 8-32 UNC helical insert installation tools. No specific compatible model numbers were provided with this product listing.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using a matched tap, installation tool, and tang break-off tool sized for 8-32 UNC HELI-COIL inserts. The parent material hole must be drilled and tapped to the correct HELI-COIL oversize tap specification before insert installation. Ensure the workpiece is secured and the bore is clean and free of chips or debris before driving the insert. For powered machinery or structural assemblies, follow applicable torque and fastener specifications per the equipment OEM documentation.