
Harken Single Bullet Swivel Block 166
The Harken Single Bullet Swivel Block 166 features a lightweight design, high-strength materials, and a smooth ball bearing system, ideal for efficient sail handling and reducing friction 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 Single Bullet Swivel Block 166
Marine Chandlery: North Shields
Unit G4 Narvik Way
Tyne Tunnel Trading Estate
North Shields NE29 7XJ
United Kingdom

The Harken Single Bullet Swivel Block 166 features a lightweight design, high-strength materials, and a smooth ball bearing system, ideal for efficient sail handling and reducing friction in various marine applications.
The Harken Single Bullet Swivel Block 166 features a lightweight design, high-strength materials, and a smooth ball bearing system, ideal for efficient sail handling and reducing friction in various marine applications.
Description
The Harken Single Bullet Swivel Block 166 is a precision-engineered marine accessory designed to enhance the performance and functionality of your sailing rigging system. Constructed with a strong, lightweight composite sheave and durable stainless steel components, this block is built to withstand the harsh marine environment while providing reliable operation. Weighing only 0.2 kg (0.44 lbs), the Harken 166 offers an impressive working load limit of 454 kg (1000 lbs), making it suitable for various applications including mainsheet systems, control lines, and other rigging tasks on both cruising and racing sailboats. The block features a low-friction sheave that allows for smooth line handling, reducing wear on ropes and ensuring a longer lifespan for your equipment. The swivel head design allows for full rotation, which minimizes line twisting and provides greater flexibility in adjusting sail positions. The compact size of the Harken 166 allows for easy integration into tight spaces, making it an ideal choice for smaller vessels or streamlined setups. With reliable performance in both freshwater and saltwater environments, the Harken Single Bullet Swivel Block 166 is an essential addition to any rigging system, ensuring adaptability and efficiency on the water. Whether you're an experienced sailor or a newcomer, this block delivers the practicality needed for effective marine operations. Trust the Harken 166 for your rigging needs and experience the difference in your sailing performance.
Specification
| Model | 166 |
| Type | Single Bullet Swivel Block |
| Sheave Diameter | 50 mm (2 in) |
| Maximum Working Load | 453 kg (1000 lb) |
| Breaking Load | 1361 kg (3000 lb) |
| Weight | 160 g (5.6 oz) |
| Swivel Type | Ball bearing |
| Material | Aluminum, Acetal, Stainless Steel |
| Pin Diameter | 6 mm (1/4 in) |
| Width | 37 mm (1.5 in) |
| Height | 90 mm (3.5 in) |
| Sheave Width | 13 mm (0.5 in) |
| Finish | Anodized |
| Application | General purpose, dinghy and small boat applications |
Delivery information
Standard delivery: 3-5 working days
Express delivery: 1-2 working days
Free delivery on orders over £100








