
Harken 29mm Triple Block Swivel
The Harken 29mm Triple Block Swivel offers lightweight durability and smooth operation, ideal for sailboats. Designed for easy rigging and reduced friction, it enhances performance and control in various marine applications.
Out of stock items can be ordered and shipped out within 3-5 working days
We despatch all orders within 24 hours. Orders placed weekdays before 4pm will be shipped the same day.
Call us and speak to an expert on 0191 4297309 - (Mon - Fri / 9am - 5pm).
Pickup available at Marine Chandlery: North Shields
Usually ready in 1 hour

Harken 29mm Triple Block Swivel
Marine Chandlery: North Shields
Unit G4 Narvik Way
Tyne Tunnel Trading Estate
North Shields NE29 7XJ
United Kingdom

The Harken 29mm Triple Block Swivel offers lightweight durability and smooth operation, ideal for sailboats. Designed for easy rigging and reduced friction, it enhances performance and control in various marine applications.
The Harken 29mm Triple Block Swivel offers lightweight durability and smooth operation, ideal for sailboats. Designed for easy rigging and reduced friction, it enhances performance and control in various marine applications.
Description
The Harken 29mm Triple Block Swivel is a precision-engineered marine component designed to enhance the efficiency and performance of sailing systems. Constructed from high-strength materials, this block offers exceptional durability and resistance to the harsh marine environment. The integrated swivel allows for smooth rotation and minimizes line cross, making it ideal for applications where maneuverability is essential. Key features include a balanced sheave, which ensures optimal load distribution and reduces wear on lines, and a lightweight yet robust construction that contributes to minimal rigging weight. The block can accommodate a working load limit of 700 kg (1540 lbs), making it suitable for a range of applications from small boats to larger cruising vessels. Typical use cases involve mainsheet systems, control lines, and halyards, where efficient line handling is crucial for performance and safety. The easy-to-install design, coupled with its compatibility with various line sizes, enhances installation versatility across different sailboats. Practical benefits of the Harken 29mm Triple Block Swivel include improved sailing efficiency through reduced friction, reliable performance in dynamic conditions, and the ability to set up complex rigging configurations with confidence. This block is an ideal solution for both competitive sailors looking to optimize their race setups and cruising enthusiasts seeking reliable gear for their voyages.
Specification
| Product Name | Harken 29mm Triple Block Swivel |
| Sheave Diameter | 29 mm |
| Maximum Working Load | 700 kg (1540 lbs) |
| Breaking Load | 1400 kg (3086 lbs) |
| Weight | 140 g (4.9 oz) |
| Length | 75 mm (2.95 in) |
| Width | 38 mm (1.5 in) |
| Material | Aluminum, Delrin, Stainless Steel |
| Swivel Type | Ball Bearing Swivel |
| Fastening Method | Integral U- bolt |
| Certification | ISO 9001:2015 |
Delivery information
Standard delivery: 3-5 working days
Express delivery: 1-2 working days
Free delivery on orders over £100








