Wire Threaded Inserts
Wire thread inserts are incorporated into softer metallic materials to give them steel like thread performance. This has enabled industries to use lighter weight materials such as aluminum without having to give up thread strength of their fasteners.

Heli-Coil® Tanged Screw Thread Inserts
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Heli-Coil® Tangless Screw Thread Inserts
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Heli-Coil® 8-Pitch Screw Thread Inserts
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Heli-Coil® Oversize™ & Twinsert® Screw Thread Inserts
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Heli-Coil® Pipe Thread Inserts
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Heli-Coil® Self-Tapping Screw Thread Inserts
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Heli-Coil® Spark Plug Screw Thread Inserts
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Heli-Coil® Primer-Free® II Coated Inserts
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Heli-Coil® Packaged Inserts
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Spiralock® Wire Thread Inserts (Tanged)
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Spiralock® Wire Thread Inserts (Drive Notch)
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More About Our Wire Threaded Inserts
Wire thread inserts are helically coiled fastening devices that provide permanent, wear-resistant screw threads that exceed the strength of most parent material; the inserts are designed to protect tapped holes against failures due to stripping, seizing, corrosion, and wear.
The Optia® brand includes two wire thread insert product families: Heli-Coil®, renowned as The Original wire thread inserts and Spiralock which incorporates the Spiralock® 30° wedge ramp thread form design in the inner wire geometry.
Heli-Coil® inserts come in two styles: the standard or Free Running insert which provides a smooth free-running thread; and Screw-Locking which provided self-locking torque on the male member by a series of “chords” on one or more o the insert coils. Both are available in tanged or tangless version.
Spiralock® wire thread inserts are available in two styles: tanged and Drive Notch (DN®), engineered with no tang.
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