Product Description Harken 12mm Bolt-Down Fairlead - TripleHarken Bolt-Down Fairleads are used on boats 615 m (2050 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.Specifications: Height (mm) 28.2 mm Height (in) 1 1/8 in Maximum line Ø (mm) 10 mm Maximum line Ø (in) 3/8 in Fasteners (mm) 6 SH mm Fasteners (in) 1/4 SH in Length (mm) 99 mm Length (in) 3 7/8 in Weight (g) 69 g Weight (oz) 2.43 oz Maximum working load (kg) 908 kg Maximum working load (lb) 2000 lb Breaking load (kg) 1816 kg Breaking load (lb) 4000 lb Width (mm) 18 mm Width (in) 11/16 in Center hole Ø (mm) 12 mm Center hole Ø (in) 15/32 in A (mm) 82.8 mm