Harken Midrange Classic Blocks have a robust construction that makes them ideal to handle the high loads found on medium and large offshore boats. The sheave runs exclusively on a ball bearing system for fast trim and release under any load.
Delrin® ball bearings, sheave, and sideplates are UV stabilized with carbon black for maximum protection. A stainless steel sidestrap wraps across the block head for increased strength and safety.
Mainsheets, Halyards. Spinnaker Sheets, Control Lines
The shackle can lock in either direction or can swivel to keep line from twisting.
|Sheave Diameter||3 in||76 mm|
|Max Line Diameter||9/16 in||14 mm|
|Max Working Load||3,800 lb||1,724 kg|
|Breaking Load||8,500 lb||3,856 kg|
|Weight||36 oz||1,020 g|
|Length||7 3/4 in||197 mm|
|Shackle Pin Diameter||5/16 in||8 mm|