Harken 57mm Ratchamatic® Block Swivel, Cam Cleat - Part #2627

The Carbo Ratchamatic® is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light-air modes is seamless. Footnote Maximum working loads and breaking loads for blocks based on cam strengths.  Sheave Ø (mm)57 mm Sheave Ø (in)2 1/4 in Length (mm)103 mm Length (in)4 1/16 in Weight (g)266 g Weight (oz)9.4 oz Shackle pin Ø (mm)5 mm Shackle pin Ø (in)3/16 in Maximum line Ø (mm)10 mm Maximum line Ø (in)3/8 in Maximum working load (kg)136 kg Maximum working load (lb)300 lb Breaking load (kg)340 kg Breaking load (lb)750 lb Holding power10:1