This Harken 113 Pivoting Cheek Bullet Block mounts on a flat surface and pivots on its #10 fastener for the best lead angle.
Harken designed their low-friction Bullet Blocks to lead control lines aft, but these truly Classic blocks can be found in an endless variety of applications. They are compact and lightweight, with free-running ball bearings that roll on flat races with minimal friction. They deliver dependable fast trim and release under high or low loads.
A range of styles lets these blocks adapt to almost all control line applications. Ideal for cunninghams, vangs, outhauls, traveler controls, spinnaker controls, barberhaulers, etc.
Pivoting block is attached by a single #10 RH (5 mm) fastener
Used on many types of control systems
Corrosion-resistant stainless steel straps reinforce these blocks
Ball bearings, sheave and sideplates are UV stabilized
Fast trim and release under load: Free-running ball bearings roll on flat races with minimal friction