Description Antal 100mm OPF Halyard Block Vertical Fix Technical Description Features Metric American Length (L) 7.09 in 180 mm Width (W) 1.22 in 31 mm Height (H) 4.96 in 126 mm Ø sheave (D) 3.94 in 100 mm Weight 1.10 lb 500 g Ø max line 0.63 in 16 mm A 1.34 in 34 mm SWL 7716.17 lb 3500 kg Fixing screws 0.08 x 0.47 in 2 x Ø12 mm Side bearing - Delrin balls Radial bearing - Composite Fibre Material - Aluminum Sheave material - Resin