Product Specs Model No. L (mm) L1 (mm) L2 (mm) ThreadM1 ThreadM2 N.W. (kg) YL-300 300 140 150 M6 x 1.0 M8 x 1.25 0.8 YL-400 400 180 190 M6 x 1.0 M8 x 1.25 1.2 YL-500 500 230 240 M6 x 1.0 M8 x 1.25 1.4