Heli-coil A3585-06CN207 Screw-locking Insert 6-32 Unc

Product Description

The HELI-COIL A3585-06CN207 is a tangless screw-locking helical coil insert designed to provide a secure, vibration-resistant threaded hole in parent material. Made from Grade 304 stainless steel with a bright finish, this insert accepts a 6-32 UNC fastener and measures 0.207 inches overall length at a 1-1/2D length-to-diameter ratio. The locking design applies radial pressure on the mating fastener through a deformed coil section, resisting loosening under dynamic loads. Machinists, maintenance technicians, and production assemblers install these inserts to restore stripped threads or to create durable threads in softer base materials such as aluminum, magnesium, or plastic.

This insert is suited for light-duty fastening applications where vibration resistance is required and a tangless design is preferred for cleaner installation without tang removal. Typical uses include electronics enclosures, instrumentation panels, aerospace assemblies, and general industrial equipment where 6-32 UNC threads are specified. The tangless configuration is compatible with standard tangless installation tooling and eliminates the tang-break step required with conventional helical inserts.

Key Features

• Tangless design eliminates tang-break step and reduces contamination risk in finished assemblies
• Grade 304 stainless steel construction provides corrosion resistance in moderate service environments
• Locking coil section delivers a maximum locking torque of 6 inch-pounds on the mating fastener
• Minimum break-away torque of 1.00 inch-pound confirms positive thread locking under service loads
• 4-3/4 free coils across a 0.207-inch overall length for consistent thread engagement
• Bright finish; outside diameter range of 0.178 to 0.193 inches for standard pre-tapped holes

Compatibility

Designed as an OEM-style replacement or new-installation screw-locking insert for applications requiring a 6-32 UNC, 1-1/2D tangless helical coil insert in Grade 304 stainless steel.

Installation Notes

Installation requires a properly sized HELI-COIL pre-tap drill and tap for 6-32 UNC inserts, followed by a compatible tangless installation tool. Ensure the parent material is secured and the tapped hole is clean and free of chips before driving the insert. Do not exceed the specified installation torque for the insert size, as over-driving can distort the coil. Tangless inserts do not require a tang-break step, but verify full seating depth with a go-gauge or depth check after installation.