Thread technology for high-strength fastenings Simple – fast – long ...

HELICOIL ® plus thread technologyThe advantages StrengthThe flexible characteristics of the HELICOIL ® plusthread insert ensure even load and stress distributionand therefore optimum flank contact. Deficientpitches and angles are compensated over the entirelength of the thread insert. With this, an optimumforce transmission from bolt to nut thread isachieved. The quality of screwed connections isconsiderably inscreased — for static as well asfor dynamic operating loads.The improved distribution of preload-force increasesthe fatigue strength of dynamically loaded screws.This is why HELICOIL ® are also suitable for highstrengthholding thread materials, e.g. steel or castiron alloys. Resistance to corrosion and thermal effectsThe basic material of HELICOIL ® plus ensures thatscrews do not seize under normal environmentalinfluences. For thermally highly stressed screwedconnections, HELICOIL ® plus thread inserts of nickelbasis materials with and without coating are available.Elasticity and spring force are constant evenunder high temperatures.If materials which are susceptible to corrosion, suchas magnesium, are used, HELICOIL ® plus is employedas a special hard-coated version of highstrengthaluminium. Contact corrosion can therefore be ruledout.6