Wurth katalog proizvoda

MWF - 04/12 - 14843 - © GEFU ® THREAD-FORMING SCREWS WITH TAPTITE 2000 ® THREAD Thread-forming screws as per DIN 7500-1 with TAPTITE ® 2000 thread • Hexagon screws with ange • Case hardened steel (-O-) • Surface: Galvanized, blue passivated (A2K) with anti-friction coating Thread-forming screws shape their nut thread in closed blind holes, eyelets, drilled/ laser cut/stamped sheet-metal parts by themselves. In contrast to thread cutting, the material structure in the counter thread is not interrupted with thread forming, but rather is displaced and cold-worked. Ductile materials, such as steel (up to approx. 500 N/mm²), die-cast zinc, aluminum, copper, copper alloys etc. are suitable for this chip-less direct screw connection. Recommendation: Suitability of the GEFU ® in the application/ component at hand must be determined through preliminary testing! Advantages: • Eliminates thread cutting ˈ saves money • Thread formed without creating chips • TRILOBULAR shape of the screw combined with the radius prole of the thread ank ˈ low forming torques and large ank coverage of the thread ˈ high clamping force • Large ank coverage of the thread ˈ high load-bearing capacity • Cold-worked counter thread (nut thread) ˈ greater load-bearing capacity • Play-free and self-locking seating of the thread ˈ reduces tendency to loosen ˈ prevents loss • Formed thread corresponds to standard metric thread. The GEFU ® can also be replaced with a metric screw if necessary. Nom. dia. M 5 M 6 M 8 Head dia. d c in mm 10.25 13.25 17.25 Head height k in mm 4.5 5.5 6.8 Wrench size s in mm 7 mm 8 mm 13 mm Nominal dia. Length l in mm Art. No. P. Qty. M4 6 020973406 200/ 2,000 8 020973408 10 020973410 12 020973412 14 020973414 16 020973416 200/ 1,000 20 020973420 25 020973425 30 020973430 M5 8 020973508 200/ 2,000 9 020973509 10 020973510 12 020973512 16 020973516 200/ 1,000 20 020973520 25 020973525 30 020973530 35 020973535 100/ 1,000 40 020973540 Nominal dia. Length l in mm Art. No. P. Qty. M6 8 020973608 200/ 2,000 10 020973610 12 020973612 16 020973616 200/ 1,000 20 020973620 25 020973625 30 020973630 35 020973635 100/ 1,000 40 020973640 100/ 500 50 020973650 M8 10 020973810 100/ 1,000 12 020973812 16 020973816 20 020973820 25 020973825 100/ 500 30 020973830 35 020973835 40 020973840 45 020973845 100/ 300 50 020973850 55 020973855 60 020973860 TAPTITE ® 2000 thread TRILOBULAR core diameter OK-00438