Harken
Harken 29mm Stand-up Block
Professional-grade marine product — trusted by boaters across the UK.
Tax included. View shipping policy
Klarna & PayPal available at checkout
The Harken 29mm Stand-up Block features lightweight construction, robust strength, and minimal friction. Ideal for control lines and small sailboats, it ensures seamless operation and enhanced performance on the water. Description The Harken 29mm Stand-up Block is a precision-...
The Harken 29mm Stand-up Block features lightweight construction, robust strength, and minimal friction. Ideal for control lines and small sailboats, it ensures seamless operation and enhanced performance on the water.
Description
The Harken 29mm Stand-up Block is a precision-engineered marine accessory designed for durable performance and versatility in a variety of applications. Constructed with robust materials, this block features a lightweight, sheave design that reduces friction and facilitates smooth line handling, making it an essential component for sailing professionals and enthusiasts alike. Key features include a stainless steel or hardcoat-anodized aluminum frame that ensures long-lasting strength and corrosion resistance, ideal for use in salty marine environments. The block's unique stand-up design allows for easy rigging and adjustment, enhancing operational efficiency on board. Its 29mm sheave is compatible with lines up to 8mm, providing flexibility for different sailing configurations. Typical use cases for the Harken 29mm Stand-up Block include mainsheet systems, halyard adjustments, and various control line applications on small to medium-sized sailboats. The block can be easily mounted on decks, masts, or booms, making it a versatile choice for both racing and cruising. Practical benefits of using the Harken 29mm Stand-up Block include reduced wear and tear on lines due to its efficient sheave design, as well as simplified rigging processes that enhance user experience. The block's low profile minimizes wind resistance and interference with sail trim, providing a clean and efficient setup for improved sailing performance. Whether for casual sailing or competitive racing, the Harken 29mm Stand-up Block delivers reliability and functionality that marine users can depend on.
Specification
| Product Name | Harken 29mm Stand-up Block |
| Sheave Diameter | 29 mm |
| Maximum Line Diameter | 8 mm |
| Weight | 42 g |
| Safe Working Load | 400 kg |
| Breaking Load | 1200 kg |
| Material | Aluminum/Acetyl |
| Finish | Anodized |
| Ball Bearing Type | Delrin |
| Mounting Type | Stand-up or Horizontal |
| Certification | None stated |
Why buy from Marine Chandlery?
- UK marine specialists, based in North Shields
- Next-day UK delivery available
- Same-day collection from our store
- Expert advice before and after purchase
- Carefully selected marine-grade products
- Secure checkout & trusted payment options










