
Harken 40mm Block
The Harken 40mm Block features a lightweight, durable design with a high-load capacity, ideal for applications in sailing and rigging. Its stainless-steel sheave ensures smooth line handling and optimal performance at sea.
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Harken 40mm Block
Marine Chandlery: North Shields
Unit G4 Narvik Way
Tyne Tunnel Trading Estate
North Shields NE29 7XJ
United Kingdom

The Harken 40mm Block features a lightweight, durable design with a high-load capacity, ideal for applications in sailing and rigging. Its stainless-steel sheave ensures smooth line handling and optimal performance at sea.
The Harken 40mm Block features a lightweight, durable design with a high-load capacity, ideal for applications in sailing and rigging. Its stainless-steel sheave ensures smooth line handling and optimal performance at sea.
Description
The Harken 40mm Block is an essential component for marine enthusiasts seeking reliability and performance in their rigging systems. Constructed with a high-strength, lightweight composite body and stainless steel and aluminum components, this block is designed to withstand the harsh marine environment while ensuring minimal friction and maximum efficiency. Featuring a sheave diameter of 40mm, the block is equipped with Harken's patented bearing technology, allowing for smoother operation under load. The block includes a captive pin design that permits easy attachment to various rigging configurations, making it ideal for both cruising and racing applications. Its versatile nature means it can be used in applications such as mainsheets, halyards, and control lines, providing dependable performance whether you're sailing skiffs or larger yachts. The Harken 40mm Block is also equipped with multiple mounting options, enabling seamless integration with existing systems. The lightweight design reduces the overall weight of your rigging, which can enhance vessel performance and responsiveness. Additionally, the block's UV-stabilized construction ensures durability against exposure to sunlight and saltwater, making it a long-lasting choice for marine users. In summary, the Harken 40mm Block is a robust and versatile rigging solution that delivers reliability and performance, ideal for both amateur sailors and experienced mariners.
Specification
| Model | Harken 40mm Block |
| Sheave Diameter | 40 mm |
| Maximum Line Diameter | 10 mm |
| Safe Working Load (SWL) | 450 kg |
| Ultimate Strength | 900 kg |
| Weight | 120 g |
| Material | Fiberglass-reinforced nylon, anodized aluminum |
| Construction | Self-lubricating Delrin® ball bearings |
| Length | 105 mm |
| Width | 60 mm |
| Height | 30 mm |
| Certification | CE, ISO 9001 |
Delivery information
Standard delivery: 3-5 working days
Express delivery: 1-2 working days
Free delivery on orders over £100








