Coiled Spring Pins Improve Trigger Assembly

March 2009
Assembly;Mar2009, Vol. 52 Issue 3, p27
The article focuses on the use of coiled pins by the Spanish company Norica Laurona to improve the manufacture of trigger assemblies for its air rifles. The coiled pins developed by Spirol International Corp. are self-retaining. It is said that the coiled pins also serve as shock absorber by helping to isolate the assemblies in which they are installed from shock loads and vibration. The fasteners have a phosphate and oil finish, which provides corrosion protection.


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