Keyless Rigid Coupling Coupling Length 48 mm Coupling Material Carbon Steel Included Screws 75.9 mm For Motion Type 8 Zero Backlash Metric Screw Material 35 mm Maximum Speed 35 mm Resistance Properties Round Maximum Torque 41.9 mm Fastener Tightening Torque 1 331 N-m Outside Diameter Oil Dipped Overhung Load Capacity +0.000 mm / -0.152 mm Bore Type 12 N-m System of Measurement Metric Length through Bore (8) Locking Screw Screw Length 40 mm Number of Locking Screws M6