... technologies for a reliable hold Press-fit threaded standoff bushings – thru-hole-thread – Application The hexagon is pressed flush into round mounting holes. Clifa®-ABO press-fit threaded bushings are intended for the production of wear-resistant screw-connections in thinwalled moulded parts from thickness 1,0 mm. Article number of the first group of digits Internal thread for sheet metal thickness External diameter Counter bore diameter Hole diameter Minimum spacing from 1,0 from 1,0 from 1,3 from 1,3 Article number of the first group of digits Internal thread Bushing length ... ... 030 ... ... 1.. 030 ... ... ... 040 ... ... ... 050 ... Bore depth B1 Example for finding the article number Press-fit threaded bushing Clifa®-ABO with internal thread M4, bushing length 10, made of hardened, zinc plated, blue passivated steel for metal sheet thicknesses from 1,3 mm: Clifa®-ABO 570 010 040. 110 Bushing length B available from 3,0 to 25 mm in intervals of 1,0 mm. The fourth digit of the article number is used to differentiate the across-flats SW measurement for the thread dimension M3, the fifth and sixth digit to identify the bushing length B (570 003…; 570 004…; 570 005…; 570 …). Steel hardened, zinc plated, blue passivated Article no. (fourth group of digits) … … … 110 Other finishes or special shapes on request. Tolerances Press-in force as a guideline value for selection of the press Clifa® ABO Press-in force The required press-in force must be determined by trial and error. For different material qualities and surfaces, higher press-in force may be required. The firmest fit is achieved if the recommended hole diameters and tolerances are precisely adhered to.