High Polished Swivel Snap Shackle For Marine & Mining Rigging

Marine Grade 316 SS High Polished Swivel Snap Shackle for Marine & Mining Rigging & Light Lifting & Webnet

1. Product Description

The Marine Grade 316 SS High Polished Swivel Snap Shackle is a versatile, high‑strength quick‑release rigging component engineered for marine environments, mining operations, light lifting, and webnet (safety net) tensioning systems. Manufactured from premium marine grade 316 stainless steel via precision casting, this snap shackle delivers exceptional resistance to saltwater, chlorides, and harsh industrial conditions-. Grade 316 stainless steel contains molybdenum (2‑3%), providing superior corrosion resistance compared to 304 grade, particularly in saltwater and chemical environments-.

The shackle features a spring‑loaded plunger pin for rapid one‑hand connection and disconnection-, with a 360° swivel design that prevents line twisting and reduces wear on rigging components-. Available in multiple configurations – swivel eye, fixed snap, and swivel jaw – with sizes ranging from size 0 to size 3 and breaking loads from 400 kg to 3,500 kg. The high polished surface finish provides a smooth, rust‑resistant, professional appearance.

Fully customizable in size, diameter, length, width, packaging, logo, color, and surface finish. 100% load tested. Free samples are supported, with door‑to‑door service available. Ideal for marine rigging, mining safety nets, sailing hardware, light lifting, and webnet systems.

2.Product Attributes

Additional Specifications:

• Material: Marine grade 316 stainless steel (A4). 304 stainless steel available on request.

• Surface finish: High polished (bright). Other finishes available upon request.

• Pin type: Spring‑loaded plunger pin (quick release).

• Swivel: 360° rotation (swivel eye/jaw types).

• Working load limit (WLL): Typically 1/4 to 1/5 of breaking load (safety factor 4:1 or 5:1).

• Processing: Precision casting-.

3. Parameter Table

3.1 Swivel Eye Snap Shackle

3.2 Fixed Snap Shackle

3.3 Swivel Jaw Snap Shackle

4. Key Features

• Marine grade 316 stainless steel construction – Superior corrosion resistance for saltwater, coastal, and harsh marine environments. Grade 316 contains molybdenum, delivering enhanced resistance to chlorides and harsh chemicals-.

• Spring‑loaded plunger pin design – Quick and easy one‑hand operation for rapid connection and disconnection, even under load-.

• 360° swivel design (swivel eye/jaw types) – Rotating eye prevents line twisting and reduces wear on rigging components-.

• Three configuration options – Swivel eye (for line connections), fixed eye (for stable attachment), and swivel jaw (for direct component connection)-.

• High polished surface finish – Smooth, rust‑resistant, professional appearance; reduces crevices and makes cleaning easier-.

• High breaking load – Sizes from 0 to 3 with breaking loads from 400 kg to 3,500 kg, suitable for light to medium lifting and rigging-.

• 100% load tested – Each shackle is proof‑tested to its rated breaking load, ensuring safety and reliability.

• Fully customizable – Size, diameter, length, packaging, logo, and surface finish can be tailored.

• Free samples – Available for quality verification before bulk order.

• Wide applications – Marine rigging, mining safety nets, light lifting, sailing hardware, webnet systems, and industrial rigging.

4. Applications

The Marine Grade 316 SS High Polished Swivel Snap Shackle is used in numerous demanding fields:

• Marine rigging & sailing – Spinnaker halyards, sheet connections, sail attachment, dock lines, mooring lines, yacht rigging, boat fenders-. The swivel design prevents line twisting during sailing maneuvers-.

• Mining & industrial safety – Safety net connections, personal fall protection, emergency barrier ropes, underground and open pit mine safety systems-.

• Webnet (safety net) systems – Tensioning and connecting stainless steel wire rope nets (webnets) for rockfall barriers, animal enclosures, building facade safety nets, sports barriers, and fall arrest systems.

• Light lifting & hoisting – Small hoist connections, workshop lifting, light equipment handling, temporary rigging connections-.

• Camping & outdoor – Tent tie‑downs, tarp securing, hammock hanging, general outdoor rigging.

• Fishing & aquaculture – Net connections, trap fastening, buoy line attachments.

• Industrial rigging – Stage equipment, theater lighting, cargo lashing, and general temporary fastening-.

5. Technical Principles

5.1 Material & Casting Process

316 stainless steel provides excellent tensile strength and corrosion resistance in marine and industrial environments-. The molybdenum content in Grade 316 delivers better overall corrosion resistance than Grade 304, particularly against chlorides in saltwater. The precision casting process creates the shackle shape with consistent dimensions and smooth surfaces-. The high polished finish provides a bright, corrosion‑resistant surface-.

5.2 Spring‑Loaded Plunger Pin Mechanism

The snap shackle features a spring‑loaded plunger pin that is set captive into the hook and cannot become detached-. When the ring on the pin is pulled, the pin retracts, allowing the shackle to open-. Upon release, the spring returns the pin to the locked position, securing the connection-. This design enables:

• Rapid connection and disconnection – One‑hand operation, no tools required-.

• Release under load – Can be opened even when under tension-.

• Secure locking – Spring tension keeps the pin engaged, preventing accidental opening-.

5.3 Swivel Mechanism

The swivel eye (or swivel jaw) provides 360° rotation-. This allows the attached line or component to rotate freely, preventing:

• Line twisting – Especially important for halyards and sheets on sailing vessels-.

• Wear on rigging – Reduces friction and extends component life-.

• Stress concentration – Allows the shackle to align with the load direction naturally.

5.4 Safety Factor

Shackles are designed with a typical safety factor of 4:1 or 5:1 (breaking load / working load limit)-. For example, a size 3 shackle with a breaking load of 3,500 kg has a WLL of approximately 700–875 kg. Users must never exceed the WLL and must account for dynamic loads, angle of pull, and wear-.

5.5 Corrosion Resistance

316 stainless steel forms a passive chromium oxide layer that protects against rust-. The high polished surface reduces crevices and makes cleaning easier. For saltwater environments, Grade 316 is the preferred choice for marine use-.

5.6 Load Testing & Traceability

Each shackle is proof‑loaded to 100% of its rated breaking load-. Permanent markings (size and grade) are stamped on the body for traceability.

Company Profile- anping county huihao wire mesh manufacture co.,ltd Huihao mainly produce: metal rings mesh, insulation fasteners, decoration metal mesh.

Huihao services include : pattern design frame design installation system design surface finished Mould customization