Long D Shackle. Long shackles are just as strong as standard shackles, but they offer the additional benefit of being able to connect objects that are further apart. Ideal for use in applications where there is limited space to access the shackle pin. Suits 2mm to 4mm line. High strength-to-weight ratio Point Load at centre or side of pin / Breaking Load: 800kg. Made from Marine Grade 316 stainless steel body and coined head (flattened) 4.8mm pin.