Safety Blue Pin Bow Shackles – 1T to 9.5T | US Federal Spec RR-C-271D
Marine-rated galvanized bow shackles with safety pins for secure lifting and rigging across a range of loads
- Material: Drop-forged steel with hot-dip galvanized finish
- Corrosion-resistant blue safety pin for quick visual inspection
- Fully tested and certified to US Federal Spec RR-C-271D
These Safety Blue Pin Bow Shackles are forged for reliable performance in marine environments, compliant with US Federal Specification RR-C-271D. Available in sizes from 1T to 9.5T SWL, each shackle features a corrosion-resistant galvanized finish and a high-visibility blue safety pin, ideal for coastal sailing, deck rigging, and offshore applications. Drop-forged and tested, they offer dependable strength and safety in Irish Sea conditions. Whether outfitting a commercial vessel or upgrading personal deck gear, these certified shackles provide robust, marine-grade connection points.
| SWL (Tonne) | Body Diameter (d) | Pin Diameter (D) | Inside Length (S) | Jaw Width (W) | Overall Width (2R) | Weight (kg) |
|---|---|---|---|---|---|---|
| 1.0 | 3/8″ | 7/16″ | 1 7/16″ | 5/8″ | 1″ | 0.15 |
| 1.5 | 7/16″ | 1/2″ | 1 5/8″ | 3/4″ | 1 1/8″ | 0.24 |
| 2.0 | 1/2″ | 5/8″ | 1 7/8″ | 7/8″ | 1 1/4″ | 0.39 |
| 3.25 | 5/8″ | 3/4″ | 2 1/2″ | 1 1/8″ | 1 5/8″ | 0.73 |
| 4.75 | 3/4″ | 7/8″ | 3 5/16″ | 1 1/4″ | 1 3/4″ | 1.30 |
| 6.5 | 7/8″ | 1″ | 3 3/8″ | 1 1/2″ | 2″ | 1.82 |
| 8.5 | 1″ | 1 1/8″ | 3 7/8″ | 1 3/4″ | 2 1/4″ | 2.59 |
| 9.5 | 1 1/8″ | 1 1/4″ | 4 1/4″ | 1 7/8″ | 2 5/8″ | 3.60 |
For added safety and reliability, we recommend using Seizing Wire with our shackles, hooks, and eyes to prevent accidental loosening under load or vibration.


