Description
Wichard Self-Locking D Shackle 12mm | Boat Supply Store
For applications demanding absolute security against accidental detachment, this 12mm Wichard Self-Locking D Shackle provides unparalleled reliability. Constructed from premium 316L stainless steel, it offers exceptional corrosion resistance and a formidable 13,220 lb breaking load. Its innovative self-locking pin mechanism actively resists loosening from extreme vibration and dynamic loads, making it indispensable for critical connections on offshore racing yachts or for securing heavy tackle in challenging marine environments.
Key Features
- Unmatched Security with an innovative self-locking pin mechanism
- Exceptional Durability forged from Grade 316L stainless steel
- Superior Corrosion Resistance for extended marine service life
- High Load Capacities boasting a 13,220 lb breaking load
- Vibration Resistance preventing accidental loosening
- CE Certified ensuring adherence to safety standards
- Robust Construction engineered for demanding conditions
- Simple & Reliable Installation with automatic pin engagement
Specifications
| Product Specifications | |
|---|---|
| Type | Self-Locking D Shackle |
| Brand | Wichard Marine |
| Diameter | 12mm (15/32") |
| Material | 316L Stainless Steel |
| Pin Type | Self-Locking |
| Working Load (WL) | 4580 lb (2080 kg) |
| Working Load Limit (WLL) | 2640 lb (1200 kg) (Industrial Only) |
| Breaking Load | 13220 lb (6000 kg) |
| Dimension A | 1-21/32" (42mm) |
| Dimension B | 1-1/16" (27mm) |
| Dimension C | 15/32" (12mm) |
| Dimension D | 15/16" (24mm) |
| Dimension D Diameter | 15/32" (12mm) |
| Dimension E | 7/16" (11mm) |
| Dimension F | 2-7/8" (73mm) |
| Dimension G | 2-7/16" (62mm) |
| Weight | 0.425 lb (193g) |
| Sold As | Individually |
Who This Is For
Sailors and marine professionals requiring the highest level of security for critical attachment points where vibration and load are significant factors. Ideal for those who prioritize preventing equipment failure due to loosening hardware.
How It Compares
| Feature | Wichard Self-Locking D Shackle 12mm | Competitor |
|---|---|---|
| Locking Mechanism | Self-Locking Pin with Indentations | Standard Screw Pin, Quick Connect Pin |
| Material | 316L Stainless Steel | 316 Stainless Steel, 316 Stainless Steel |
| Diameter | 12mm (15/32") | — |
| Working Load Limit (WLL) | 2640 lb (1200 kg) (Industrial Only) | 2640 lb (1200 kg), 2866 lb |
| Breaking Load | 13220 lb (6000 kg) | null, null |
| Vibration Resistance | Outstanding (due to self-locking pin) | Standard, Standard |
Common Concerns Answered
Is the WLL rating suitable for all marine applications?
The Working Load Limit (WLL) is specified for industrial applications only. While the shackle's Working Load (WL) is a robust 4580 lb (2080 kg) and its Breaking Load is 13,220 lb (6000 kg), users must exercise due diligence and apply appropriate safety factors for their specific nautical use, considering the dynamic and often more demanding nature of marine environments.
Why is this shackle more expensive than standard screw pin types?
The premium price point reflects the advanced engineering and superior performance of the self-locking pin mechanism, which significantly enhances security by preventing loosening under vibration. Furthermore, the use of high-grade 316L stainless steel ensures exceptional longevity and corrosion resistance in harsh marine conditions, justifying the investment for critical rigging.
Will this shackle loosen under heavy waves or boat motion?
Absolutely not. The defining feature of this Wichard shackle is its self-locking pin mechanism. It is engineered with specific indentations that positively engage the shackle body, creating a secure lock that actively resists loosening caused by extreme vibration and motion, ensuring your critical connections remain intact.
Frequently Asked Questions
What is the difference between Working Load (WL) and Working Load Limit (WLL) for this Wichard shackle?
The Working Load (WL) of 4580 lb (2080 kg) represents the maximum load the shackle can safely handle in typical, non-industrial marine applications, taking into account safety factors. The Working Load Limit (WLL) of 2640 lb (1200 kg) is a standard rating for industrial use, which may differ due to specific safety regulations and application types. For nautical applications, the WL is the primary consideration.
What type of stainless steel is used in the Wichard Self-Locking D Shackle?
This Wichard Self-Locking D Shackle is forged from Grade 316L stainless steel, renowned for its superior resistance to corrosion, particularly in saline environments, and its excellent mechanical strength.
What are the primary applications for the Wichard Self-Locking D Shackle?
Its primary applications include the secure attachment of blocks, headsails, lifelines, control lines, and any critical rigging point on sailboats and powerboats where reliable, vibration-resistant connections are paramount. It is also suitable for marine professionals requiring high-strength, secure connectors.
How does the self-locking mechanism on this shackle prevent loosening?
The self-locking pin features precise indentations that mate with corresponding detents in the shackle body. When the pin is fully closed, these indentations create a positive mechanical lock, preventing rotation and loosening even under significant vibration and cyclic loading.
Is this shackle suitable for lifting applications?
While the shackle has an impressive Breaking Load of 13,220 lb (6000 kg) and a Working Load (WL) of 4580 lb (2080 kg), its WLL is specified for industrial use only. For critical lifting applications, always consult relevant lifting equipment standards, and ensure the chosen shackle's ratings meet or exceed the required safety factors for that specific use.
