Specifications: Material: Stainless Steel 304 Stock Diameter: 1/2 Bow Eye Opening: 1 2/5 ; Thread Length: 3 Center on Center: 1 2/5; Space Between Studs: 1 1/8 Washers and Hex Nuts included Sold as seen in pictures. Boat bow eye stern eye U bolt tie down 3/8 stock, 4.5 overall length, 3 thread length with hex nuts and washers. This U-bolt measures approximately 2 1/4 W x 4.5 H x 3/4 D overall and has (2) approximate 1/4 diameter x 1 1/2 long threaded bolts with 1 7/16 apart center on center. This is a new out of the box, stainless steel bow eye constructed of polished stainless steel. Package include1 x U Bolt