compact rail

TORX ® HEAD SCREWSCHARACTERISTICSFor the COMPACT RAIL counterbored hole rails,special dimension screws have been designed withTORX ® fixing housing.The TORX ® socket shallow head screws guaranteehigh tightening torque without plastic deformation orcracks. This increased torque allows the rails toremain well fixed even in the presence of vibrations.Tightening torque is transmitted with safety becausethe guide angle of 15° is very similar to the optimalvalue of torque transmission of gears. The largecontact area - even with a reduced depth - eliminatesany chance of concentrated stress and deformations,with consequent reduction of the wear of housing andkey, minimalizing the risk of the key sliding and“stripping” the housing.The six vertical contact surfaces maintain the key inthe right position, avoiding damage and workingwithout peak loads.very smallcontact arealarge contactareahigh specificpressureHEXAGONALHOUSINGlow specificpressureTORX ®HOUSINGTECHNICAL DATANote: all rails with counterbored fixing holeswill be supplied with these TORX ® screws.Extra TORX ® screws and inserts can beordered. See table at right.Cat. 41-41bEA27