Description
Wichard 4mm Self-Locking D Shackle | Boat Supply Store
Eliminate the risk of accidental loosening in high-vibration marine environments with this robust Wichard Self-Locking D Shackle. Engineered from forged 316L stainless steel, it offers superior corrosion resistance and a formidable 1540 lb breaking load. The innovative self-locking pin mechanism ensures security for critical connections, such as those found on offshore sailboats operating in the Gulf of Mexico.
Key Features
- Prevents Loosening: Self-locking mechanism actively resists disengagement from vibration.
- Superior Corrosion Resistance: Forged in grade 316L stainless steel for extended marine life.
- High Strength: Achieves an outstanding breaking load of 1540 lb for critical applications.
- Traceable Quality: Features CE marking and batch number for assured material integrity.
- Secure Attachment: Designed for reliable connection of blocks, heads, and other deck hardware.
- Compact Diameter: 4mm (5/32") size for versatile fitting in tight spaces.
- Reliable Operation: Provides a secure and dependable connection point.
- Peace of Mind: Innovative design ensures rigging integrity offshore.
Specifications
| Product Specifications | |
|---|---|
| Diameter | 4mm (5/32") |
| Material | 316L stainless steel |
| Self-locking mechanism | Yes |
| Working load limit (WLL) | 300 lb (industrial applications) |
| Breaking load | 1540 lb |
| Weight | 0.015 lb |
| Dimension A | 33/64" |
| Dimension B | 5/16" |
| Dimension C | 5/32" |
| Dimension D | 5/16" |
| Dimension D diameter | 5/32" |
| Dimension E | 1/8" |
| Dimension F | 29/32" |
| Dimension G | 25/32" |
| CE marking | Yes |
| Batch number | Yes |
Who This Is For
Sailors and boaters requiring a fail-safe connection point for vital rigging components subject to constant motion. Marine professionals seeking reliable hardware that mitigates risks associated with vibration-induced fastener loosening.
How It Compares
| Feature | Wichard 4mm Self-Locking D Shackle | Competitor |
|---|---|---|
| Locking Mechanism | Self-Locking Pin | Standard Screw Pin, Quick Connect Pin |
| Material | 316L Stainless Steel | 316 Stainless Steel |
| Diameter | 4mm (5/32") | — |
| Breaking Load (lb) | 1540 | 1500, 1600 |
Common Concerns Answered
Is the Working Load Limit (WLL) suitable for lifting personnel?
No, the stated Working Load Limit (WLL) of 300 lb is designated for industrial applications and is not appropriate for lifting personnel.
Is this shackle more expensive than standard options?
While it may have a higher price point than basic screw pin shackles, the enhanced security and robust construction of the Wichard Self-Locking D Shackle justify the investment for critical rigging applications.
How does the self-locking mechanism compare to a standard screw pin?
The self-locking pin provides superior security by actively resisting accidental loosening caused by vibration, a concern not addressed by standard screw pin designs.
Frequently Asked Questions
What is the working load limit (WLL) for the Wichard Self-Locking D Shackle 4mm?
The working load limit (WLL) for this shackle is 300 lb, specified for industrial applications.
What material is the Wichard Self-Locking D Shackle 4mm made from?
The shackle is forged from high-grade 316L stainless steel, offering exceptional corrosion resistance.
What are the dimensions of the Wichard Self-Locking D Shackle 4mm?
Key dimensions include an overall length (F) of 29/32", an internal width (D) of 5/16", and a pin diameter (C) of 5/32" (4mm).
What is the breaking load of the Wichard Self-Locking D Shackle 4mm?
The breaking load for this shackle is 1540 lb, indicating its significant strength capacity.
What applications is this shackle suitable for?
This shackle is ideal for attachment applications such as blocks, heads, and general rigging where a secure connection resistant to vibration is paramount.
