About D-shackle and Headboard shackle
D-shackle also known as chain shackle, D-shackles are narrow cuffs are shaped like a chain ring, usually with pins or threaded pins off. D-shackles are very commonality, and most other types of shackles is a variation of D-shackles. May take a small circle of high load the main line. Ladder-shaped edges and then assemble a load may be reversed or bent D-shackle.
D-shackle of This longer version is used to sail with a halyard, especially in sailing in line with a headboard for example, was assembled boats in Bermuda. Headboard shackle from flat stainless steel belts often stamped, and to the ring The top and bottom of the pin between an additional feature, it does not scratch halyard headboard was joining the eyes.
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