Self Locking Screw

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 1-12 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.