YSF Standard Locknut

The locking method 30° of threads, three points locking. For this type is standard product of our company, the excellent design for locking can make the threads of fixed copper completely mesh with the counter-threads and lead to a perfect effect of let-off. What more is the design of 30° that reduces the torque which is effected by tightening screw.

• Material Composition: SCM440(42CrMo4)
• Thread Precision:ISO 4H
• Edge Bevel:0.002mm
• Hardness:HRC28 °~32°
• Parallelism:0.002mm
• Concenticity:0.005mm