Description Manufacturer part #: 15.26 Technical Description Features American Metric Name Single Sheave size 1 9/16 in 40 mm Max line size 3/16 in 5 mm Breaking Load 1,543 lb 700 kg Base 1 in x 3 5/16 in 25 mm x 84 mm Hole Diameter 5/32 in 4 mm Hole Spacing 2 7/8 in 73 mm