1)Alternative left-hand thread for the ball socket.

2) Filled with lubricant so as to circle swing agilely without any block.3) Unless otherwise specified, all dimensions in inches.

Material and surface treatments:

1)Ball socket: low carbon steel Q235A;Ball stud: medium carbon steel 45; Shell: ow carbon steel 20.zinc plating. Spring: stainless steel 304.

2)Ball socket and ball stud: alternative stainless steel 304,stainless steel 303 or stainless steel 316.Surface passivation.

3)Ball socket and ball stud: alternative aluminum 6061 with anodic oxidation treatment.