Harken 57mm Double Block

Product description

57mm Carbo Blocks

The high-load 57 mm Carbo has a broad working range. Use for main and jib sheets on centerboard and keelboats like Lightnings, Dragons, Solings, and J/24s, and for mainsheet systems on catamarans.

Blocks feature Cam-Lock or U-Lock locking systems to lock the shackle in front or side positions, or swivel to keep line from twisting.

Use for:

• Main/jib sheets
• Mainsheet fine-tune
• Control lines
• Vangs
• Cunninghams
• Outhauls

Specifications:

• Sheave Ø 57 mm | 2-1/4 in
• Length 121 mm | 4-3/4 in
• Weight 178 g | 6.3 oz
• Shackle pin Ø 6 mm | 1/4 in
• Maximum line Ø 10 mm | 3/8 in
• Maximum working load 720 kg | 1584 lb
• Breaking load 1500 kg | 3300 lb