Heli-coil A3585-06CN345 Screw-locking Insert 6-32 Unc

Product Description

The HELI-COIL A3585-06CN345 is a screw-locking helical wire threaded insert designed to provide secure, vibration-resistant thread repair and reinforcement in parent materials. Manufactured from Grade 304 stainless steel with a bright finish, this tangless insert accepts a 6-32 UNC thread and delivers controlled locking torque without the installation complications associated with traditional tang-break designs. The overall insert length is 0.345 inches at a 2-1/2D length-to-diameter ratio. It is installed by licensed maintenance technicians, aerospace mechanics, and industrial service professionals working on metal assemblies requiring reliable threaded engagement.

This insert is suited for applications where thread stripping, corrosion, or repeated fastener cycling demands a permanent, locking thread solution. The 304 stainless steel construction makes it appropriate for environments with moisture exposure or mild chemical contact. The tangless design eliminates the need for a tang removal step after installation, reducing installation time and eliminating the risk of loose tang fragments inside assemblies. Typical uses include precision equipment housings, structural panels, fluid system components, and any assembly where a 6-32 UNC locking thread is required.

Key Features

• Tangless design eliminates tang removal step and prevents loose fragments in the assembly
• Grade 304 stainless steel construction resists corrosion in wet or mildly corrosive environments
• Maximum locking torque of 6 inch-pounds with a minimum breakaway torque of 1.00 inch-pound
• 8-7/8 free coils provide consistent thread engagement across the full insert length
• Bright finish with a minimum outside diameter of 0.178 inches and maximum of 0.193 inches
• 2-1/2D length-to-diameter ratio at 0.345 inches OAL suits standard-depth hole applications

Compatibility

Designed as an OEM-style screw-locking insert for tapped holes requiring a 6-32 UNC internal thread in metal or rigid parent materials.

Installation Notes

Installation is performed using a HELI-COIL-compatible tangless insert installation tool sized for 6-32 UNC. The parent material must be drilled and tapped to the correct HELI-COIL STI (Screw Thread Insert) specification before installation. Ensure the assembly is de-energized and secured before thread repair work begins. Do not use standard UNC taps in place of STI taps, as this will result in an incorrect fit and compromised thread engagement.