Harken 16mm Air Block Pulleys

The 16 mm is Harken’s smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race. Specifications Model Sheave in. Length in. Weight oz. Maximum Line Max Working Load lb. Breaking Load lb. 404F 5/8 in 1 1/8 0.33 7/32 in 250 1200 417F 5/8 in 1 13/16 0.63 7/32 in 250 750 406F 5/8 in 1 11