Harken 16mm Thru-Deck Block 421 for flush rigging – Barton Marine NZ Harken 16mm Thru-Deck Block 421 for flush rigging – Barton Marine NZ
Harken 16mm Thru-Deck Block 421 for flush rigging – Barton Marine NZ

Harken

Harken 16mm Thru-Deck Block 421

$94.90
Tax included.

Harken 16mm Thru-Deck Block 421 – Clean, Low-Profile Rigging Solution

The Harken 16mm Thru-Deck Block (421) is designed to provide a discreet, efficient line exit through decks, bulkheads, or spars on dinghies, skiffs, and performance small boats. This thru-deck block enables clean, flush-mounted rigging systems while maintaining low friction and high strength in compact spaces.

Equipped with a UV-stabilised Delrin® sheave spinning on stainless steel ball bearings, the 421 ensures smooth line control and long-lasting durability in harsh marine environments. It’s ideal for applications such as internal control lines, outhauls, cunninghams, and more.

🔧 Key Features:

  • Thru-deck design for flush and tidy installations

  • 16mm Delrin® sheave with stainless steel ball bearings

  • Max line diameter: 5mm

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

  • Compact and lightweight (9g)

  • Marine-grade stainless steel cheeks for strength and corrosion resistance

The Harken 421 Thru-Deck Block is trusted by racers and boat builders alike for its minimalist footprint, strength, and smooth performance.