Universal grip lockbolt

Claim 1

A SWAGE TYPE FASTENER COMPRISING A METAL PIN AND A PRE-FORMED SWAGEABLE METAL COLLAR HAVING A CIRCULAR OPENING THERETHROUGH, SAID PIN INCLUDING A PERFORMED HEAD AT OEN END AND A SOLID STEM HAVING A SMOOTH EXTERIOR EXTENDING THEREFROM, SAID HEAD EXTENDING LATERALLY BEYOND THE STEM TO PROVIDFE AN ABUTMENT, SAID COLLAR BEING GENERALLY TUBULAR IN FORM AND BEING DISPOSABLE ON SAID STEM, THE OUTER PORTION OF SAID COLLAR BEING SUFFICIENTLY RELATIVELY SOFT TO VE PERMANENTLY DEFORMED BY A SWAGING TOOL AND THE INNER PORTION BEING RELATIVELY HARDER THAN SAID OUTER PORTION OF SAID COLLAR AND SAID PIN, SAID INNER AND OUTER PORTIONS BEING SUBSTANTIALLY COEXTENSIVE LONGITUDINALLY THEREOF, SAID INNER PORTION BEING IN THE FORM OF LONGITUDINALLY SPACED INWARDLY PROJECTING LOCKING MEANS DEFINING SAID CIRCULAR OPENING HAVING A MINIMUM DIAMETER GREATER THAN THE DIAMETER OF THE STEM SO THAT THE COLLAR MAY BE DISPOSED THEREON IN EMBRACING RELATION THERETO, SAID LOCKING MEANS BEING ADAPTED TO BE FORCED INTO SAID STEM WHEN SAID COLLAR IS SWAGED ONTO SAID STEM TO FORM COMPLEMENTARY LOCKING MEANS IN SAID STEM.