Hexagon Nut, Stopper Nut (Option) Part No. for Series 25AHexagon nut Basic type With cap Stopper nut Thread size M8 25-RB08J 25-RB08S 25-RBC08S M10 25-RB10J 25-RB10S 25-RBC10S M14 25-RB14J 25-RB14S 25-RBC14S M20 25-RB20J 25-RB20S 25-RBC20S M27 25-RB27J 25-RB27S 25-RBC27S Material: Special steel Treatment: Electroless nickel plating How to Order Shock Absorber Series 25A-RB/RBC 25A RB C 14 12 Type Shock absorber O.D. thread size/Stroke Series compatible with secondary batteries Option Symbol 1411 1412 2015 2725 O.D. thread size 14 mm 14 mm 20 mm 27 mm Stroke 11 mm 12 mm 15 mm 25 mm O.D. thread size 8 mm 8 mm 10 mm 10 mm Stroke 5 mm 6 mm 6 mm 7 mm Nil C Basic type With cap Symbol Nil J N S SJ SN Hexagon nut 2 pcs. 3 pcs. . 2 pcs. 3 pcs. . Stopper nut . . . 1 pc. 1 pc. 1 pc. Symbol 0805 0806 1006 1007 . Specifications and dimensions for the 25A-series are the same as standard products. 100 Air Grippers Air Cylinders Directional Control Valves Related Products Rotary Actuators Vacuum Equipment Air Preparation Equipment Air Filters/Pressure Control Equipment Fittings/Flow Control Equipment Detection Switches Fluid Control Equipment Electric Actuators Auto Switches Clean Air Filters