General description Long Double Bar D Shackle with Captive Pin is designed for secure attachment to ropes and chains. Made from 316 Grade Stainless Steel, these shackles offer excellent rust protection, making them ideal for marine applications. The captive pin design minimizes the risk of losing the pin, as it requires unscrewing twice before detachment. Technical specifications Size: 12MM Metal: 316 Grade Stainless Steel Product Code: SFSSDB12 Dimensions: A: 48 MM B: 22 MM C: 28 MM D: 22 MM E: 9 MM F: 12.6 MM Breaking Load: 7600 KG Usage These Dee Shackles are widely used for various applications, particularly in the marine industry, for securely attaching ropes and chains.