*Out there only in Europe and Canada. Inserts having a lessened head give the benefit of an almost flush flange. see items · With all the reduction in gentleman-hrs because of speedy single facet fastening, overall expenditures is often minimized when compared to traditional construction methods such as weld-on nuts. https://trigger-guards86317.pointblog.net/fascination-about-threaded-inserts-for-plastics-67602503