Harken 8mm High Resistance "D" Shackle 
8mm High Resistance "D" Shackle
Forged stainless steel shackles are polished to a high luster and are stamped with the screw pin diameter. High-Resistance (HR) shackles are forged in 17-4PH stainless steel to handle high loads. They have an "HR" imprint for easy identification.
- Shackle pin: 8mm / 5/16in
- Weight: 56.5g / 2oz
- Maximum working load: 2330kg / 5130lb
- Breaking load: 4650kg / 10260lb