Designed for rigging applications with bi-directional loads long D-ring shackles feature a proportionally longer length to offer a high strength to weight ratio. Constructed of forged 316 stainless these shackles feature a screw pin closure. Because the screw pin can be quickly removed from the shackle body they are ideal for rigging applications where fast and/or repeated connecting and disconnecting are required. Break Strength 3300 lbs. A 1/4" B 1/2" C 1-13/16"