12mm Bolt-Down Fairlead - SingleHarken 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.Specifications: Length (mm): 48 mm Length (in): 1-7/8 in Width (mm): 18 mm Width (in): 11/16 in Weight (g): 28 g Weight (oz): 0.99 oz Maximum line (mm): 10 mm Maximum line (in): 3/8 in Fasteners (mm): 6 SH mm Fasteners (in): 1/4 SH in Maximum working load (kg): 908 kg Maximum working load (lb): 2000 lb Breaking load (kg): 1816 kg Breaking load (lb): 4000 lb Height (mm): 28.2 mm Height (in): 1-1/8 in A (mm): 32 mm Center hole (mm): 12 mm Center hole (in): 15/32 in