Galvanised Alloy Steel U.S. Fed Spec. RR-C-271 Screw Pin Bow Shackle
A high-strength, load-rated alloy steel shackle manufactured to U.S. Fed. Spec. RR-C-271.
U.S. Fed Spec. RR-C-271
Forged from high-tensile alloy steel, complying with the dimensional and performance requirements of U.S. Fed Spec. RR-C-271.
Screw Pin (Collar Pin)
Features a standard screw pin that is fast and easy to remove, ideal for temporary or non-permanent applications.
Hot Dip Galvanised
Finished in a robust Hot Dip Galvanised (HDG) coating for excellent outdoor corrosion resistance.
Product Overview
Our Galvanised U.S. Spec Screw Pin Bow Shackles are a high-strength, load-rated lifting component manufactured to meet the performance requirements of the U.S. Federal Specification RR-C-271. Forged from high-tensile alloy steel and finished with a Hot Dip Galvanisation (HDG), they provide excellent durability and corrosion resistance. The “bow” shape provides ample room for multi-leg slings. This shackle is equipped with a screw pin (collar pin) which is ideal for applications where the shackle needs to be frequently removed and re-attached.
Important Safety Notice: These shackles are load-rated for lifting. The Working Load Limit (W.L.L.) is clearly marked and must not be exceeded. Always inspect shackles for wear or damage before each use. For overhead lifting, ensure the pin is fully tightened and secure before applying the load. Not suitable for permanent installations where the load may cause the pin to rotate.
Specifications
| Part Code | D (Material Diameter) | D (Pin Diameter) | L (Length) | W (Jaw Width) | W.L.L. |
|---|---|---|---|---|---|
| GAUSBS0.50 | 1/4″ | 5/16″ | 23mm | 12mm | 0.50T |
| GAUSBS0.75 | 5/16″ | 3/8″ | 27mm | 13.5mm | 0.75T |
| GAUSBS1.00 | 3/8″ | 7/16″ | 31mm | 17mm | 1.00T |
| GAUSBS1.50 | 7/16″ | 1/2″ | 37mm | 18.5mm | 1.50T |
| GAUSBS2.00 | 1/2″ | 5/8″ | 42mm | 21mm | 2.00T |
| GAUSBS3.25 | 5/8″ | 3/4″ | 51mm | 27mm | 3.25T |
| GAUSBS4.75 | 3/4″ | 7/8″ | 59mm | 31mm | 4.75T |
| GAUSBS6.50 | 7/8″ | 1″ | 72mm | 36mm | 6.50T |
| GAUSBS8.50 | 1″ | 1 1/8″ | 81mm | 43mm | 8.50T |
| GAUSBS9.50 | 1 1/8″ | 1 1/4″ | 91mm | 46mm | 9.50T |
| GAUSBS12.0 | 1 1/4″ | 1 3/8″ | 95mm | 51mm | 12.00T |
| GAUSBS13.5 | 1 3/8″ | 1 1/2″ | 133mm | 57mm | 13.5T |
Product Datasheet
Download the datasheet for this product.












