precision formed wire inserts are readily recognized and highly regarded products in the industry. Since its inception in 1938, Heli-Coil has been identified as an industry leader offering products with superior performance, reliability and integrity.

HeliCoil Screw Locking Insert as standard is available in Stainless Steel AISI-304/ DTD 734 . Metric series ranges from M2 to M39 & unified series from UNC / UNF 1-64 to 1-1/2 inch. HeliCoil Screw Lock Insert is also available in strip feed or reel mounted form .  HeliCoil Locking Insert provides an exclusive, resilient internal locking thread that grips the bolt and prevents it from loosening under vibration or impact. One or more coils of the HeliCoil insert, having a series of straight segments/ chords, achieve locking action. HeliCoil Locking Insert permits repeated assembly and disassembly and will not relax their grip on the screw even in tough metals such as cast iron, alloy steel, titanium, etc. HeliCoil Locking Insert positively secures threaded members against loosening caused by vibration and shock. HeliCoil Locking Insert has a high reusable factor permitting frequent removal and reassembly of bolt without appreciable loss of torque. It has positive self-locking torque, complying with NASM8846, MA1565 and MIL-N-25027. It eliminates the usage of lock wiring, lock nuts, lock washers, chemical compounds, plastic pellets/ patches and other locking mechanisms. The HeliCoil Locking Inserts are subjected to extensive tests in tension, torque, shear, vibration and fatigue, conducted by the American & European companies. Its applications include sectors like Aviation & Aerospace, Electronics, Industrial, Automotive and Military. 

Emhart Heli-Coil ®  Tangless Inserts eliminate tang break-off and retrieval and are easily adjusted or removed after installation. The Bi-Directional Design installs quickly and easily from either end of the insert. HELI-COIL Tangless inserts have a bi-directional design allowing the insert to be installed from either end Tangless inserts are available as free running & screw locking Types, with all regular coatings. Heli-Coil Tangless screw lock inserts provide a positive, self-locking torque and comply with both MIL-I-8846 /NASM8846 and NAS1130 requirements. Typical Tangless NAS1130 Parts can be identified as in the product linecard available at this site. 

HeliCoil Insertion Tools - Prewinder Type are available as both plain slotted and threaded mandrel captive & non-capitive tools ranging from size M1.6, M2 – M39 and in UNC / UNF category from 1-64 to 1-1/2”. HeliCoil insertion tools comes in variety of configurations such as Threaded Mandrel Type Insertion Tool Threaed Mandrel Prewinder tools having threaded nozzle: Tool is available as both Capitive & Non-Capitive type depending on size & pitch. Plain Mandrel Prewinder tools having threaded nozzle: Tool is available as both Capitive & Non-Capitive type depending on size & pitch. Larger insertion tool sizes are also available & made on request. HeliCoil Prewinder tools are best suited for easy & fatigue free installation of inserts in production line to achieve a high quality of HeliCoil insert installation & prevent jumping of coil threads. Threaded mandrel prewinders are also best recommended for successful installation of screw locking inserts and free running inserts having a fine thread pitch. 

• range"4-40 to 1/2”

All HeliCoil Thread Repair Kits including the Professional Thread Repair Kits are used for creating stronger internal threads in all metals, composites, polymers and other materials by repairing damaged or stripped internal threads and regaining the original thread size. HeliCoil Thread Repair Kit creates longer lasting durable threads, avoids thread over-sizing, increases the possibility of higher torque application in weaker metals, significantly reduces the bolt breaking problems & HeliCoil being made of stainless steel protects against atmospheric corrosion. HeliCoil Professional Thread Repair Kits include everything required to do the job right – good number of inserts each of 3 lengths (short, medium & long) for multiple applications, HSS drill bit , Finishing tap, installation tool and tang breaking tool – all in a rugged new box. These kits are available in metric range from M2 to M12 and in UNCUNF range "4-40 to 12”.

Blind Rivets are multi-piece rivet assemblies, capable of being installed from one side of the workpiece. Traditionally, blind rivets were used on aircraft leading edges, trailing edges, and close out areas which are limited to access to one side of the structure. Current blind rivet usage has expanded to many additional areas of the aircraft and other mass producing industries in an effort to decrease labor expense and to address the ergonomic issues of solid riveting.