Stainless Steel Captive Screw Pin D Shackle
The Captive Screw Pin D Shackle manufactured from SUS304 (AISI 304) stainless steel is engineered for applications requiring moderate tensile strength and excellent corrosion resistance. Typical use cases include marine rigging, load securement, and structural tie-downs in corrosive or high-humidity environments.
Its D-shape geometry promotes directional load stability, reducing lateral stress and ensuring optimal force distribution under axial loads. The captive screw pin design prevents accidental loss during disassembly, a critical feature in dynamic or vibration-prone installations.
Dimensional specifications range from 3.5 mm to 17 mm (pin diameter, D) across models SPK-4 to SPK-19. The corresponding Working Load Limits (WLL) span 40 kgf (0.39 kN) to 860 kgf (8.43 kN), as tested under controlled conditions. Threaded closures use metric sizes from M4 to M14, with the two largest sizes adopting UNC threads (W–5/8 and W–3/4) for compatibility with imperial hardware.
Each unit is precision-machined and polished to improve resistance to oxidation and surface degradation, supporting long service life in demanding field environments. Weight and load specs are catalogued for quick reference and selection, ensuring efficient integration into engineering designs and procurement workflows.
Common applications include:
Marine and offshore: Sailboat rigging, anchor chain connections, and deck hardware attachments
Industrial rigging: Chain slings, hoisting assemblies, and structural support bracing
Construction and staging: Temporary scaffolding, tensioned lines, and overhead truss systems
Transportation: Cargo securement on trailers or shipping containers
Outdoor and recreational: Climbing systems, zipline anchoring, and heavy-duty camping setups
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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