Threaded insert Trisert®

brassflat

High performance threaded inserts for plastics The Tappex Trisert® range of threaded inserts for plastics has been developed for various environments and application criteria post-mould installed. It includes three primary designs– double ended, reduced headed and headed, all available as normal and close-limit variants; lengths normally stated in mm. Trisert®– Double ended- Product features Three primary and three secondary equidistant cutting flutes over the length of the external form, give a more balanced cutting load than other forms of self-tapping insert (sometimes called: ‘self-threading’). The cutting action takes place at a larger number of points on the thread form over the length and circumference of the insert. Lead-in feature on both ends allows the insert to be installed either way up which facilitates ease of handling. Therefore, where the volumes dictate that bowl feeding equipment is required, for example, it is not necessary to incorporate complex flighting or routing-systems to orientate the insert which makes bowl feeding simpler and reduces overall process-tooling costs. Free running internal thread due to there being no interruption to the internal thread, as the external longitudinal flutes produce the cutting action during installation. Reduced outward stress – during the installation process the cutting action of self-tapping inserts results in slight outward stress. This is reduced to an absolute minimum with the Trisert® and enables the insert to be used in more brittle materials and also where there are thin wall-sections.