Harken 16mm Swivel Block 417

Harken 16mm Single Swivel Block 417 – Lightweight Control with Full Rotation

The Harken 16mm Single Swivel Block (417) delivers maximum versatility in a micro-sized, high-performance block. Designed with a 360° swivel head, it allows your rigging lines to rotate freely, making it ideal for vangs, cunninghams, outhauls, and other control systems on dinghies, skiffs, and high-performance small boats.

This compact block features a Delrin® sheave spinning on stainless steel ball bearings for smooth, efficient operation under load. The swiveling shackle head ensures optimal line alignment and helps reduce friction and twisting in dynamic sailing environments.

🔧 Key Features:

• 360° swivel head for free rotation and flexible mounting

• 16mm Delrin® sheave with stainless steel ball bearings

• Max line diameter: 5mm

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

• Lightweight (10g) and corrosion-resistant stainless steel sideplates

• Perfect for responsive, multi-angle control line systems

Built for precision and freedom of movement, the Harken 417 is trusted by competitive sailors worldwide who demand the best in performance and reliability.