![Harken 57mm Quad Block Swivel, Center Becket [HSB380] Marine Hardware | Hooks & Clamps Industrial Strength with the Standard](https://cdn.shopify.com/s/files/1/0614/9655/7734/products/88765XL.jpg?v=1656211580)
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Industrial Strength with the Standard Quality and Performance of Dolphin Fenders
B - 160mm (5-5/16")
Nickel plated brass ideally suited for harsh marine environment
Grade 316 Stainless Steel fittings
Max Line 7/16" (11mm)
Harken 57mm Quad Block Swivel, Center Becket [HSB380] Marine Hardware | Hooks & Clamps Industrial Strength with the Standard57mm Quad Block Swivel, Center Becket Low friction Carbo Air blocks are lightweight, strong, reliableand affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming. Features: Sheave (mm) 57 mm Sheave (in) 2 1 4 in Maximum line (mm) 10 mm Maximum line (in) 7 16 in Maximum working load (kg) 1080 kg Maximum working load (lb) 2380 lb
