Description
Harken 25mm Wire Block w/Shackle | Boat Supply Store
Ideal for managing wire halyards and high-strength control lines on sailboats, this compact block minimizes friction through its precisely engineered sheave. It supports a maximum working load of 454kg and a breaking load of 907kg, making it suitable for demanding rigging applications. The integrated shackle ensures straightforward attachment to existing systems, a critical feature for efficient deck hardware deployment.
Key Features
- Lightweight construction for reduced overall system weight
- Low-friction sheave ensures smooth operation under load
- Integrated shackle simplifies and speeds up rigging installation
- Optimized for wire halyards and high-strength control lines
- Compact 25mm sheave size conserves space on deck
- Robust load capacity with 454kg working load
- Durable construction designed for marine environments
- Reliable performance for critical control lines
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 25mm |
| Weight | 28g |
| Shackle Pin Diameter | 5mm |
| Max Wire Size | 2mm |
| Max Line Size | 4mm |
| Maximum Working Load | 454kg |
| Breaking Load | 907kg |
Who This Is For
Sailors and boaters requiring a lightweight, low-friction block for managing wire halyards and high-strength control lines. This block is particularly beneficial for those seeking efficient rigging solutions for smaller to medium-sized vessels.
How It Compares
| Feature | Harken 25mm Wire Block w/Shackle | Competitor |
|---|---|---|
| Sheave Diameter | 25mm | — |
| Maximum Working Load | 454kg | — |
| Weight | 28g | 25g, 40g |
| Maximum Wire Size | 2mm | null, null |
| Maximum Line Size | 4mm | null, null |
Common Concerns Answered
Is this block robust enough for heavy-duty offshore use?
While the 454kg working load is substantial, for extremely heavy-duty applications, larger blocks with higher load ratings may be more appropriate. This 25mm wire block is optimized for its size and offers excellent performance for its class, commonly used for halyards and control lines on many vessels.
Is the shackle pin difficult to operate?
The shackle pin is designed for secure attachment, and while some users find it slightly fiddly, it ensures reliable engagement once properly seated. Its compact design is integral to the block's overall efficiency.
Will this block be too small for my specific rigging needs?
This 25mm sheave block is designed for wire up to 2mm and line up to 4mm, with a 454kg working load. If your application exceeds these specifications, consider larger blocks. Customers appreciate its size for specific tasks where space is a constraint, noting its suitability for smaller boats or specialized control lines.
Frequently Asked Questions
What is the maximum wire size this block can accommodate?
The Harken 25mm Wire Block with Shackle can accommodate wire up to 2mm in diameter.
What is the maximum line size this block can accommodate?
This block is designed to accommodate line up to 4mm in diameter.
What is the working load limit for the Harken 25mm Wire Block?
The maximum working load limit for this block is 454kg.
What is the breaking load for the Harken 25mm Wire Block?
The breaking load for the Harken 25mm Wire Block with Shackle is 907kg.
What is the weight of the Harken 25mm Wire Block with Shackle?
The Harken 25mm Wire Block with Shackle weighs 28 grams.
