R-shaped Pin (split pin) is mainly used for thread connection anti loosening

R-shaped pin (split pin) is mainly used for thread connection anti loosening.
After tightening the nut, insert the cotter pin into the nut slot and the bolt tail hole,

and pull the cotter pin tail open to prevent relative rotation between the nut and the bolt.

Split pin is a type of metal hardware, commonly known as spring pin.

When using split pins, five key points should be noted:

1. Eye circles should be made as round as possible.

2. The cross-section of the two legs of the split pin should be circular, but it is allowed to have

a rounded corner (d-diameter of the split pin) with a radius of r=(0.05-0.01) dmax at the intersection

of the plane of the two legs of the split pin and the circumference.

3. The clearance between the two ends of the split pin and the displacement of the two legs should not

exceed the difference between the nominal size of the split pin and dmax.

4. The split pin is promised to be made into an opening, with the angle between the inner planes of its two feet α Should meet specifications

5. The surface of the split pin should not have burrs, irregularities, or harmful defects.