BASIC NAME COUPLING NAME MODIFIER FLEXIBLE TYPE ELASTIC ELEMENT MATERIAL STEEL/RUBBER SPACER WITHOUT SPACER SIZE PNA40 TORQUE 400 NM STANDARD DRILLING ADDITIONAL REQUIREMENTS SEE OBS COMMERCIAL REFERENCE STROMAG-PERIFLEX PNA40 ACCORD-ACOPLEX 31-14.1 ACCORD-NT041-14OBS:THE MATERIAL MUST BE SUPPLIED WITH HEXAGON HEAD SCREW