Harken 16mm Double Block 406

Harken 16mm Double Block 406 – Power & Precision for Small Boat Rigging

The Harken 16mm Double Block (406) is purpose-built for creating compact multi-purchase systems on high-performance dinghies, skiffs, and small keelboats. Featuring two Delrin® sheaves mounted side-by-side, this block delivers superior load distribution and smooth control over critical rigging lines.

Its stainless steel ball bearings ensure high-efficiency rotation, while the lightweight, corrosion-resistant construction makes it a go-to solution for applications such as vangs, cunninghams, traveler controls, and downhauls.

🔧 Key Features:

• Double 16mm Delrin® sheaves with stainless steel ball bearings

• Ideal for 2:1 or 3:1 control systems

• Max line diameter: 5mm

• Working load: 113kg | Breaking load: 544kg

• Lightweight at just 14g

• Polished stainless steel sideplates for strength and corrosion resistance

Perfect for competitive sailors looking to optimise line handling and control on lightweight craft, the Harken 406 offers outstanding performance in a compact footprint.