... technologies for a reliable hold Threaded inserts for heat or ultrasonic embedding Application Easily sortable due to their symmetrical shape and usable on both sides, suitable for all applications in thermoset plastics. Article number External diameter Hole diameter (guideline values) Minimum wall thickness Internal thread Example for finding the article number Threaded insert S-Lok®-RB to Works Standard 864 0 with internal thread A = M4 made of brass: S-Lok®-RB 864 100 040.800 Article no. (fourth group of digits) … … … 800 Other dimensions on request. Tolerances