D shackles also known as D-ring shackles are hardware devices used for securing or lifting heavy loads. They have a "D" shape (hence the name), with a straight bar and a curved body, resembling the letter "D". D-shackles are designed to be used in various applications, such as in rigging, towing, lifting, and securing cargo.
D shackles are commonly used in industries such as shipping, construction, offshore oil rigs, and heavy machinery. When using D shackle, it is important to ensure they are sized correctly for the application and to regularly inspect them for signs of wear or damage.