ITEM NAME:Marine Boat Chain Rigging Bow Shackle Captive Pin 304 Stainless Steel 6mm Description: Screw pin bow type anchor shackle Marine grade, high polished and smooth contours Heavy-duty construction, strong, durable and does not rust Used as a connector between anchors and anchor chains Great for various marine and industrial applications Size Chart: Size Length Width Diameter M4 24 18 4 M5 32 25 5 M6 40 30 6 M8 50 38 8 M10 63 50 10 M12 75 58 12 M14 88 68 14 M16 100 80 16 M20 125 96 20 Unit: mm (1mm=1/25 inch) Package Includes: 1 Piece of Bow Shackle SKU: DMO0011899954016466.Screw pin bow type anchor shackle. 1 Piece of Bow Shackle. Used as a connector between anchors and anchor chains. Marine grade, high polished and smooth contours. Great for various marine and industrial applications.