Sailboat single block with shackle / becket (max. rope ø : 10 mm)
147 Harken

Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications.

Free-rolling Delrin® ball bearings, sheave and sideplates UV-stabilized with carbon-black additive for maximum protection.

Wire Bullet blocks use roller bearings to carry higher loads and feature Hardkote-anodized Teflon® impregnated aluminum sheaves for strength and corrosion resistance. Mast exit blocks with cams used for halyard controls and under boom mainsheets.

The 140 is designed for under-boom mainsheets or for spar-mounted halyards and control lines and pivots for a fair lead. The 141 is ideal for control lines.