Shackles Sort: rigging, ship fittings and lifting fittings. Material: stainless steel 304 or stainless steel 316. Size: 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 20mm, 22mm, 25mm, 28mm, 32mm, 3/16 ",, 1/4", 5/16", 3/8", 7/16", 1/2", 5/8", 3/4", 1" Surface Treatment: polished. Packing: cartons. Remark: We can produce the following kinds of Shackles (Bow type, Straight Type, Security Shackle, JIS type Shackle, European type Shackle, U.S. type Shackle, Twist type Shackle, Swivel Snap Shackle, Fixed Type Shackle)