Technical Blog
Heli-Coil® Materials, Coating & Plating

Heli-Coil® Materials, Coating & Plating

Materials 304 Stainless Steel Standard, general-purpose material Ideal for original equipment applications, repair, and overhaul Stocked in most sizes Inconel X750 Used in areas exposed to high temperatures Typical uses: gas turbine engines, nuclear applications, well...

HeliCoil Screw Thread Inserts

HeliCoil Screw Thread Inserts

Fast Facts: Require no staking, locking, swaging, keying, or interference fit (Free-Running). Automatically adjusts to any expansion or contraction of the parent material (Free-Running). Anchor permanently in place against the tapped hole (Free-Running). Positively...

HeliCoil – Tanged / Tangless / Screw Lock

HeliCoil – Tanged / Tangless / Screw Lock

Tangless Coil Inserts are a continuous, helically-coiled, bi-directional, wire design. This innovative design allows for installation using a drive notch located at each end of the coil insert instead of a tang located at one end of the insert. Because Tangless Coil...

Nitronic 60 HeliCoil / Inconel X750 HeliCoil

Nitronic 60 HeliCoil / Inconel X750 HeliCoil

Nitronic 60 HeliCoil Inserts made from Nitronic 60 are specifically engineered to eliminate galling and fretting when used with stainless steel screws.  The surface friction between the mating screw and the Nitronic 60 insert is superior to 304 Stainless Steel inserts...

Dry Film Lubricant HeliCoil

Dry Film Lubricant HeliCoil

The most versatile, and most popular, coating applied to Tanged or Tangless HeliCoil Inserts is the Dry Film Lubricant.  The Dry Film Lubricant is applied to limit galling between the insert and the fastener.  The Dry Film Lubricant is a Molybdenum Disulfide applied...

Heli-Coil® Primer-Free® Coated Inserts

Heli-Coil® Primer-Free® Coated Inserts

Primer-Free® inserts are designed for use in applications where galvanic corrosion between dissimilar metals is a concern. The proprietary Primer-Free® coating not only protects the base material and provides excellent lubricity, but more importantly, eliminates the...

Heli-Coil® Manual Installation Tool

Heli-Coil® Manual Installation Tool

The use of HeliCoil Manual installation tools for lower productions or FA Parts are recommended.  The simple design of these inserting tools makes screw thread inserts installation way much easier and efficiently , even for beginners. Depending on the number of thread...

Heli-Coil® Screw Thread Insert Tap

Heli-Coil® Screw Thread Insert Tap

Finishing – Manual or Machine Tap also known as intermediate taps 4 thread chamfer used for manual hand or machine tapping in through holes and blind holes where ample chip clearance is available lead chamfer permits easier starting and requires less tapping torque...

Coil Thread Repair Kit

Coil Thread Repair Kit

Restore stripped threads easily and permanently with Heli-Coil® thread repair kits and master sets. Heli-Coil® application-specific thread repair kits make complex repairs manageable and are often the recommended solution by both domestic and foreign automakers....

Heli-Coil® Oversize™ & Twinsert®

Heli-Coil® Oversize™ & Twinsert®

Two types of Heli-Coil® thread repair kits are available for correcting tapping errors to STI and standard tapped holes. Oversize™ inserts and Twinserts® allow use of the original bolt size after the repair has been made. Oversize™ inserts are primarily used to...

Keenserts® Inserts and Studs

Keenserts® Inserts and Studs

Keenserts® Inserts and Studs are designed to provide high resistance to torque-out and pull-out loads. Pre-assembled keys are driven down through the threads of the parent material to mechanically lock the fasteners into place. The inserts are available with...

Skycoil® Self Tapping Threaded Inserts

Skycoil® Self Tapping Threaded Inserts

Material: Steel or 1.4305 stainless steel Version: Steel Case Hardened / Electro Zinc-Plated. Stainless Steel Bright. Note: Self-tapping threaded inserts for making high-strength, wear-free, vibration resistant screw connections in materials with low shear strength...

PEM® Fasteners

PEM® Fasteners

KEY ADVANTAGES OF SELF-CLINCHING FASTENERS Provide strong threads or attachment in metal as thin as 0.20 mm / .008″. May be installed using any parallel acting squeezing force. Provide high pushout and torque-out resistance. Do not require special hole preparation,...

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