YSFTA Uses the same locking method as YSFT locknut, but this nut has wrench holes on the radius side and back surface side, making it easy for different assembly environment requirements.

• Material Composition: SCM440(42CrMo4)
• Hardness: HRC28º~32º
• Thread Accuracy: ISO 4H
• Manufacturing Method: High Precision Grinding
• Run Out: 0.002mm
• Manufacturing Method: High Precision Turning
• Run Out: 0.005mm