Stainless Steel Screw Pin Anchor Shackle
The screw pin anchor shackle shown above is a versatile, high-corrosion-resistance rigging component fabricated from SUS304 stainless steel. This D-shaped shackle design with a removable screw pin is ideal for temporary or semi-permanent connections in lifting, towing, and marine applications. The polished finish not only enhances corrosion resistance but also offers a clean, professional appearance for exposed installations.
Key dimensions and performance data are standardized across a range of sizes (BS-4 to BS-16), with pin diameters (d) ranging from 8 mm to 32 mm. The working load limits (WLL) scale from 50 kgf (0.49 kN) in the smallest BS-4 size up to 800 kgf (7.84 kN) for the BS-16 variant. These ratings provide engineers and rigging professionals with critical design information to ensure safe and appropriate use under load.
Thread sizing follows ISO metric and UNC standards, with pin threads such as M-4 to M-6 for smaller models and W-5/16" to W-5/8" in larger sizes. This variety supports integration with both metric and imperial rigging systems. The dimensions L (length), B (jaw width), and W (internal clearance) are precisely defined to ensure compatibility with a range of hardware, from eye bolts to turnbuckles.
These shackles are an excellent choice for environments where rust prevention and mechanical integrity are essential, such as marine rigging, architectural hardware, or cleanroom-grade equipment mounting.
Below are some of the primary sectors and applications where these components are commonly utilized:
1. Marine and Offshore Applications
SUS304 stainless steel offers excellent resistance to seawater and atmospheric corrosion, making these shackles ideal for:
Mooring lines
Anchor chains
Sailboat rigging
Fender attachments
Offshore buoy or net systems
The screw pin design allows for quick installation or detachment—critical in dynamic marine environments where re-rigging is frequent.
2. Lifting and Rigging
In construction, infrastructure, and industrial rigging scenarios, these shackles serve as load-bearing connectors between slings, chains, or hoisting devices. Their Working Load Limit (WLL) ratings ensure safe operation under well-defined limits, with the BS-16 rated for up to 800 kgf (7.84 kN)—suitable for moderate-load lifting tasks.
3. Theatrical and Stage Rigging
For load-rated applications in stage rigging or truss systems, stainless steel shackles provide both strength and discretion. The polished finish and corrosion resistance are beneficial in both indoor and outdoor event settings.
4. Architectural and Structural Hardware
In architectural design, SUS304 shackles are used as connection points for:
Decorative tensile structures
Shade sail hardware
Cable railings
Suspended elements (e.g., lighting or signage)
Their aesthetic finish and mechanical reliability make them suitable for both visible and load-bearing applications.
5. Cleanroom and Sanitary Environments
In food processing, biotech, or pharmaceutical settings where stainless hardware is required to resist oxidation and allow for easy cleaning, these shackles can be used in temporary assembly rigs or overhead cable supports.
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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