set of fasteners for wheel set earthing housing modification as per drg no sked 945 one set con sist of fasteners as follows 1 stainless steel bush l 18mm thread size m12x1 75 outside m8x1 25 inside mat aisi 304 to match with m8 allen screw qty 03 nos set 2 stainless steel bush l 15mm thread size m12x1 75 outside m8x1 25 inside mat aisi 304 to match with m8 allen screw qty 02 nos set 3 stainless steel bush l 10mm thread size m12x1 75 outside m8x1 25 inside mat aisi 304 to match with m8 allen