This bow shackle with a square head (often called an anchor shackle or trawling shackle) is a heavy-duty, U-shaped rigging component.
Its defining feature is the square-headed screw pin, which allows the pin to be easily tightened and loosened using a wrench or standard fishing vessel tools.
Key Features & Benefits
Anti-Snagging Design: The square head fits flush or tightly into a recessed chamber in the shackle eye, reducing the risk of the shackle catching on fishing nets, ropes, or lines.
Superior Torque: The square head allows you to apply more leverage with a wrench to fasten the pin securely or to break it loose when it is jammed or overtightened.
Anti-Vibration: The flat surfaces and tight fit ensure the pin is highly resistant to loosening under continuous impact or vibration.
Durability: They are typically forged from high-tensile steel, quenched and tempered for extreme strength, to protect against rust and harsh marine environments.
Common Applications
Because of its unique ability to resist snagging and vibrations, this type of shackle is the go-to standard in specific, heavy-duty applications.Because of its unique ability to resist snagging and vibrations, this type of shackle is the go-to standard in specific, heavy-duty applications.
Commercial Fishing & Trawling: Extensively used in the fishing industry as a reliable connecting link for chains and nets.
Heavy Marine Rigging: Used for multi-leg sling systems and heavy securements on ships.
Offshore & Aquaculture: Employed where conditions are harsh and the equipment is subjected to heavy, continuous impacts.
If you are looking to purchase or use a square head bow shackle, let me know: What is your industry or specific application? What Working Load Limit (WLL) or size do you need?
Come and order your Square Head Bow shackle, Bow Shackle with Square Head.
Haifan Rigging supply a range of Square Head Bow shackles. They come with a variety of fittings for each end to suit your particular application.
To put in your order, just fill out our short inquiry form here, but please do ask us if you need anything custom-made.
If you wish to ask a question or need further advice, you are welcome to contact us.
We’ll be happy to help.
We look forward to hearing from you!
