Description
The Blue Wave 180308 Halyard Shackle is a heavy-duty, forged stainless steel shackle designed for secure, high-load applications such as sailboat halyards, blocks, and rigging systems. Featuring a 5/16″ (8 mm) keypin, this shackle allows for quick, tool-free operation while maintaining a secure and reliable connection.
Made from AISI 316 marine-grade stainless steel, it is highly resistant to corrosion and is ideal for use in demanding marine environments. The smooth, polished finish reduces wear on lines and gear, making it a trusted choice for performance and cruising sailors alike.
Key Features
Heavy-duty halyard shackle with 5/16″ keypin
AISI 316 stainless steel for exceptional corrosion resistance
Keypin design allows easy opening and secure locking without tools
Ideal for halyards, mast fittings, blocks, and general rigging
Polished finish helps minimize line wear and abrasion
Suitable for both recreational and commercial marine use
Specifications
Part Number: 180308
Pin Diameter: 5/16″ (8 mm)
Material: AISI 316 marine-grade stainless steel
Type: Halyard shackle with keypin
Pin Style: Spring-loaded keypin for tool-free operation
Working Load Limit: High (exact rating may vary; contact manufacturer for certified load values)
Finish: Polished stainless steel
Corrosion Resistance: Excellent – ideal for saltwater use
Applications: Sailboat halyards, blocks, lifting points, rigging






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