Harken Bolt-Down Fairleads are used on boats 6-15 m (20-50 ft) as shallow-angle line deflectors. These weight-saving fairleads are built of 6061-T6 Hard Lube-anodized aluminum for durability. Smooth surfaces and radiused center holes minimize line wear.SpecificationsMaximum line diameter: 9/16″ (14 mm)Center hole diameter: 5/8″ (16 mm)Fasteners: 5/16 CH, 5/16 HH, 5/16 SH inch (8 CH, 8 HH, 8 SH mm)Maximum working load: 4000 lb (1816 kg)Breaking load: 8000 lb (3632 kg)Fastener spacing: 37 mmLength: 2 3/8″ (60 mm)Width: 7/8″ (22 mm)Height: 1 1/4″ (31.8 mm)Weight: 1.66 oz. (47 g)Technical FileInstruction Manual .input-wrapper a { text-decoration: none; / Removes underline / background-color: transparent; / Ensures no background color / } .input-wrapper a:hover { text-decoration: underline; / Adds underline on hover / background-color: transparent !important; / Removes grey highlight / }