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C inserts are recommended for thermoset or thermoplastic applications. Their geometric shape and sharp pointed barbs eliminate any danger of the moulded bosses splitting on installation or when tightening of the mating screw occurs. The wall thickness of bosses should generally be at least one half of the insert diameter. Different materials may require slight modifications to the hole dimensions stated above and it is essential that the hole depth is sufficient to allow the screw to pass completely through the insert to achieve optimum performance. The head provides the useful feature of eliminating jack-out loads when used with a mating part which has a larger hole than the standard insert diameter. It can also be used as a contact point for electrical terminations.
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D Type Screwin Woodcert Flanged Inserts for Wood and Furniture are widely used in the furniture industry. These self tapping inserts provide a reusable metric thread form in wood and wood composite materials.
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Heli-Coil® inserts are precision formed screw thread coils of stainless steel wire having a diamond shaped cross section.
When they are installed into Heli-Coil® tapped holes, they provide permanent conventional 60' internal screw threads that accommodate any standard bolt or screw.
All related tooling such as STI Taps, hand and power installation tools, gages and tang break-off tools are also available. Typical Applications would include: Automotive,Communication, Aerospace, Military and the Defense industries
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This self-locking series corresponds in all points to the conventional series, the screw threads being locked by polygonal deformation of one or more turns of the thread.
This deformation results in a powerful locking on the sides of the screw thread and counteracts the unscrewing effects of dynamic stresses, vibrations and thermal loads. The locking torques obtained are comparable with the values indicated in standard ISO 2320.
The stainless steel self-locking thread insert is recognised by its red colour.
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Because of its optimal dimensions, the SR series keeps all the characteristics of the conventional series while offering additional advantages for installation and use:
- Easier and safer installation for higher productivity,
- 100% compatible with the existing tools of the conventional series, it allows adopting this new series without changing the habits of buyers and users,
- More economical to buy, the SR installation tool has new user-friendly features which make it quicker to use and allows a self-check.
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Recoil strip feed inserts provide many advantages such as:
Minimised handling costs
Faster, more economical assembly
Positive inventory control
Recoil 'Strip-Feed' inserts are available in most common thread diameters and lengths in addition to the various surface finishes which are available on standard Recoil bulk inserts
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SR series: additional advantages
Because of its optimal dimensions, the SR series keeps all the characteristics of the conventional series while offering additional advantages for installation and use:
Easier and safer installation for higher productivity,
100% compatible with the existing tools of the conventional series, it allows adopting this new series without changing the habits of buyers and users,
More economical to buy, the SR installation tool has new user-friendly features which make it quicker to use and allows a self-check.
Amecoil locking thread inserts
This self-locking series corresponds in all points to the conventional series, the screw threads being locked by polygonal deformation of one or more turns of the thread.
This deformation results in a powerful locking on the sides of the screw thread and counteracts the unscrewing effects of dynamic stresses, vibrations and thermal loads. The locking torques obtained are comparable with the values indicated in standard ISO 2320.
The stainless steel self-locking thread insert is recognised by its red colour.
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Because of its optimal dimensions, the SR series keeps all the characteristics of the conventional series while offering additional advantages for installation and use: Easier and safer installation for higher productivity; 100% compatible with the existing tools of the conventional series, it allows adopting this new series without changing the habits of buyers and users ; More economical to buy, the SR installation tool has new user-friendly features which make it quicker to use and allows a self-check.
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Thread technology for HELICOIL® plus, HELICOIL® tangless, KOBSERT® and QUICKSERT®
For metals with low shear resistance, Böllhoff offers an outstanding solution for thread reinforcement: HELICOIL® plus and HELICOIL® tangless thread inserts ensure high-strength, non-wearing, thermally loadable, high-precision threads.
These thread inserts are also suitable for waste recycling and repair of inside threads.
Böllhoff offers corresponding fitting solutions, from handheld fitting tools to fully automatic fitting machines for mass production.
Supplemental to this, there are QUICKSERT® threaded bushings for expansion anchoring and KOBSERT® threaded bushing that is specially tailored to air (gas) and water-tight connections.
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The Recoil system consists of precision inserts, quality HSS STI taps, cost effective repair kits and easy to use installation tools which are used for repairing damaged screw threads or creating strong new threads. Available in free running, locking and strip-feed configuration, they are generally manufactured in 304 stainless steel, but also available in Inconel, Nimonic 90, Nitronic 60, Phosphor Bronze, type 316 Stainless steel or with lubrificants and specific coatings and colors.
They are available in all Metric and Imperial sizes, including UNC, UNF, BSC, BSW, BSP, BSF, BA, NPT and ISO.
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Range supplements thread inserts at Norelem.
These thread inserts of Norelem are average a rapid, effective and economic to restore tappings torn off, damaged or seized up. The quality of completion makes it possible to guarantee a high gripping force of the screws. The versions stainless and chromium-nickel are corrosion resistant in moist environment and acid. Practical, the assembly of the thread inserts is fast and easy because apart from the tool for assembly, no special tool is necessary; the keys are used as brake in rotation during the assembly. They are available of M8 to M24, (starting from M4 for references 07661 and 07664).
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