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427ACTUAL SIZEwww.southco.com/R6Part NumberSteel R6-21-11Stainless steel R6-21-23Radial7 (.28) Minimum15±0.2(.59±.01) 36(1.42)18(.71)15±0.2(.59±.01) 7 (.28) Minimum21±0.2(.83±.01)Ø 5.4±0.1(.213±.004)4 Holes13 (.51)MaximumAxialFrame DoorDimensions in millimeters (inch) unless otherwise statedR6 HingeConcealed · 90° Opening• Invisible when door is closedMaterial and FinishSteel, zinc plated, or stainless steel Performance DetailsZinc Plated SteelRadial load:Maximum static load:625 N (140 lbf)Average ultimate load:2235 N (502 lbf)Axial load:Maximum static load: 205 N (46 lbf)Average ultimate load: 420 N (94 lbf)Stainless SteelRadial load:Maximum static load:525 N (118 lbf)Average ultimate load:3035 N (682 lbf)Axial load:Maximum static load: 185 N (42 lbf)Average ultimate load: 475 N (107 lbf)Maximum holding torque: 18.2 Nm (161 inlbf)Operating temperature range:-40º C (-40º F) to 85º C (185º F)Installation NotesPanel thickness exceeding 4 (.16) will require a 45˚ chamfer on both door and frame.Screws not supplied. Install using M5 (No. 10) Part NumberSee tableR18.5 (.73)InsideClearanceCenter ofrotationR18.5 (.73)76 (3) 4 (.16)38.5(1.52)5 (.20)Ø 5.2 (.20), 4 Places 15(.59)31(1.22)21 (.83) 15(.59)36(1.42)908 (.32) 30(1.18)