Screw Case 1.5/2.0/2.4/2.7/3.5

Specification: 1.5*6/8/10/12/14/16/18/20  2.0*8/10/12/14/16/18/20/22/24/26/28 2.4*8/10/12/14/16/18/20/22/24/26/28/30 2.7*10/12/14/16/18/20/22/24/26/28/30 3.5*8/10/12/14/16/18/20/22/24/26/28/30