Stainless Steel Screw Pin Semi-Round D Shackle Wide Type
The Screw Pin Semi-Round D Shackle – Wide Type, manufactured in corrosion-resistant SUS304 stainless steel, is designed for versatile load-bearing applications in marine, rigging, and industrial settings. This component features a broader frame width (dimension B) than standard D shackles, enabling it to accommodate wider lifting straps, slings, or hardware connections. Its semi-round arch profile improves alignment of tension loads while minimizing wear on connected components.
The threaded pin is secured by a screw pin with a precision-machined eye, offering fast, tool-free operation during assembly or disassembly. The fine-pitch threading on larger sizes (M6 and M8) improves vibration resistance, enhancing performance in dynamic environments.
Key Features:
Material: SUS304 stainless steel for high corrosion resistance.
Design: Semi-round arch with increased internal clearance for wide webbing or hardware.
Thread Type: M5, M6, and M8 fine pitch threads depending on size.
Load Ratings:
RSV-5: 45 kgf (0.44 kN)
RSV-6: 60 kgf (0.59 kN)
RSV-8: 100 kgf (0.98 kN)
This type of shackle is ideal for light to medium-duty applications requiring durability, ease of use, and resistance to marine or outdoor environments.
Common Use Cases:
Marine & Rigging Applications
Ideal for connecting anchor chains, mooring lines, or lifting slings on sailboats, workboats, and dock systems.
The SUS304 stainless steel offers excellent resistance to saltwater corrosion, ensuring longevity in harsh environments.
Industrial Lifting & Hoisting
Used to secure lifting straps or round slings to hooks, eye bolts, or lifting eyes in overhead hoisting applications.
The wide body accommodates synthetic webbing slings without causing wear or compression damage.
Construction and Structural Support
Applied in temporary or modular rigging setups for load distribution, scaffolding connections, or tensioning assemblies.
Easy pin removal supports quick installation and reconfiguration on job sites.
Outdoor & Architectural Installations
Useful in tensile fabric structures, signage mounting, or architectural suspension systems where visual appeal and weather resistance matter.
Its polished SUS304 finish maintains aesthetic integrity over time.
Recreational Equipment & Safety Harnessing
Suitable for low-load applications such as securing gear in climbing, off-road recovery setups, or zipline attachments (non-critical load zones only).
The semi-round shape avoids concentrated stress points on ropes or soft shackles.
By offering greater width and maintaining reliable working load limits, the Screw Pin Semi-Round D Shackle – Wide Type provides a balance of utility and durability across load-bearing environments.
Why Choose Mizken’s Stainless Steel Shackles?
We are committed to providing top-quality rigging hardware for our customers. Here’s why you should consider buying Mizken’s stainless steel shackles from us:
✅ Premium-Grade Stainless Steel – Highly resistant to rust, corrosion, and wear.
✅ Wide Range of Sizes & Types – From D-shackles to turnbuckles, we offer options for every application.
✅ Trusted Brand – Mizken is a reliable supplier known for precision engineering and good reputation throughout Japan.
✅ Perfect for Multiple Industries – Whether you work in marine, industrial, construction, or outdoor activities, these shackles deliver the strength and durability you need.
We procure and deliver Mizken’s products to your door! If you have any questions or need recommendations, feel free to reach out to us.
Stainless Steel Shackles and Size Charts
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