Description
Wichard Self-Locking Allen D Shackle 6mm | Boat Supply Store
Engineered for critical connection points subjected to high loads and potential vibration, this Wichard D shackle ensures definitive security where accidental loosening is unacceptable. Constructed from forged Grade 316L stainless steel, it offers exceptional corrosion resistance for harsh marine environments. With a substantial Working Load of 1320 lb (600 kg) and a Breaking Load of 3520 lb (1600 kg), it provides robust performance for vital rigging, such as halyards or anchor rode connections on offshore vessels.
Key Features
- Eliminates loosening due to vibration with a secure self-locking pin mechanism.
- Prevents snagging with a low-profile Allen head pin design.
- Guarantees superior corrosion resistance with forged Grade 316L stainless steel construction.
- Ensures high security with a pin that locks into dedicated indentations.
- Delivers robust load-bearing capabilities, rated to 1320 lb Working Load.
- Provides exceptional strength with a Breaking Load of 3520 lb.
- Meets stringent safety standards with CE marking.
- Offers ease of installation and secure fastening via an Allen key.
Specifications
| Product Specifications | |
|---|---|
| Diameter | 6mm (1/4") |
| Material | Forged 316L stainless steel |
| Pin Type | Self-locking Allen head pin |
| Working Load (Nautical) | 1320 lb (600 kg) |
| Working Load Limit (Industrial) | 700 lb (320 kg) |
| Breaking Load | 3520 lb (1600 kg) |
| Weight | 0.049 lb (22 g) |
| Dimension A | 3/4" |
| Dimension B | 15/32" |
| Dimension C | 15/64" |
| Dimension D | 15/32" |
| Dimension D diameter | 6mm (15/64") |
| Certifications | CE marked |
Who This Is For
Sailors and marine professionals requiring the highest level of security for critical rigging and connection points where accidental loosening is a critical failure risk. This shackle is ideal for applications on sailboats, catamarans, and yachts operating in demanding offshore conditions or facing significant rigging vibration.
How It Compares
| Feature | Wichard Self-Locking Allen D Shackle 6mm | Competitor |
|---|---|---|
| Pin Type | Self-Locking Allen Head Pin | Screw Pin|Screw Pin |
| Snagging Risk | Eliminated (low-profile pin head) | Present (standard screw pin)|Present |
| Vibration Loosening | No risk | Risk present|Risk present |
| Working Load Limit (WLL) | 700 lb (320 kg) | 1320 lb (600 kg)|770 lb |
| Breaking Load | 3520 lb (1600 kg) | Not specified|Not specified |
| Material | 316L Stainless Steel | 316 Stainless Steel|316 Stainless Steel |
Common Concerns Answered
Is the higher price of this shackle justified?
The Wichard Self-Locking Allen Head Pin D Shackle's premium price directly reflects its advanced self-locking mechanism and snag-free, low-profile design, which provide superior security and reliability over standard screw pin shackles, making it a cost-effective investment for critical rigging applications.
Are these shackles readily available in all sizes?
While certain sizes may have more limited availability compared to standard shackle types, the 6mm diameter of this self-locking model is a common size for many halyard and control line applications, and its specialized features ensure it's worth the search for critical connections.
What makes this shackle better than a standard screw pin shackle?
This shackle's innovative Allen head pin utilizes a self-locking mechanism that positively engages to prevent loosening from vibration, a common issue with standard screw pins. The low-profile head also significantly reduces the risk of snagging on sails or lines, enhancing safety and operational efficiency.
Frequently Asked Questions
What is the working load limit (WLL) for the Wichard Self-Locking Allen Head Pin D Shackle?
The Working Load Limit (WLL) for industrial applications is 700 lb (320 kg). For nautical applications, the Working Load (WL) is rated at 1320 lb (600 kg).
What is the difference between Working Load (WL) and Working Load Limit (WLL) for this shackle?
Working Load (WL) typically refers to the maximum load a component can safely handle in marine rigging, while Working Load Limit (WLL) is a more standardized industrial safety rating. For this specific shackle, the nautical WL is 1320 lb, and the industrial WLL is 700 lb, reflecting different safety factors and application contexts.
What are the dimensions of the Wichard Self-Locking Allen Head Pin D Shackle?
The shackle has an internal width (B) of 15/32", an internal length (A) of 3/4", and a pin diameter (D) of 6mm (15/64"). The pin head thickness (C) is 15/64".
What type of stainless steel is used in this Wichard shackle?
This Wichard shackle is forged from Grade 316L stainless steel, renowned for its exceptional resistance to corrosion, particularly in saltwater environments, making it ideal for demanding marine applications.
What are the primary applications for this self-locking shackle?
This self-locking shackle is primarily used for critical connection points such as halyards, sheets, control lines, anchor rodes, and various rigging components where security against vibration-induced loosening and snagging is paramount. It is highly recommended for offshore sailing, racing yachts, and any application where reliability is non-negotiable.
