Technical Specifications
| Specification | Details |
|---|---|
| Product Name | D Shackle With Forged Pin |
| Manufacturer | Allen |
| Part Number / SKU | A-621105 |
| Shackle Type | D Shackle / Round Body |
| Material | 316 Stainless Steel |
| Pin Type | Forged Screw Pin |
| Pin Diameter | 5 mm |
| Overall Length (L) | 18 mm |
| Dimension A | 11 mm |
| Dimension D | 5 mm |
| Dimension W | Not specified |
| Breaking Load | 950 kg |
| Breaking Load | Approx. 9.32 kN |
| Weight | 13 g |
| Finish | Stainless steel |
| Corrosion Resistance | Excellent, suitable for marine environments |
| Body Design | Smooth, rounded D-shaped body |
| Pin Operation | Screw-in / removable forged pin |
| Application | Marine, sailing, industrial and general rigging |
The manufacturer’s current product listing confirms the 18 mm length, 11 mm A dimension, 5 mm pin diameter, 950 kg breaking load and 13 g weight.
Key Features
- 316 stainless steel construction for high corrosion resistance.
- 5 mm forged screw pin provides secure fastening.
- Compact D-shaped round-body design.
- Suitable for marine and outdoor environments.
- Smooth body helps reduce snagging and wear.
- Strong construction with a stated 950 kg breaking load.
- Lightweight design at approximately 13 g.
- Suitable for connecting ropes, wires, straps and rigging components.
- Easy to install and remove using the screw pin.
- Economical alternative to a fully forged shackle body, according to Allen.
Important: The manufacturer’s published figure is a breaking load, not a stated Working Load Limit (WLL). Therefore, this particular shackle should not be specified for lifting applications based solely on the 950 kg breaking-load figure. For certified lifting, use a shackle specifically rated and marked with an appropriate WLL and applicable lifting standard.





