Harken 57mm Carbo Ratchet Single Block

Product description

Ratchet Carbo Blocks

Carbo Ratchet Blocks allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing.

Nylon resin sideplates are densely packed with long-glass fibers for a compact block with a high strength-to-weight ratio. Machined aluminum sheaves are hardcoat anodized for strength and corrosion resistance. Eight facets hold line securely. Ball bearings, sheave, and sideplates are UV-stabilized with carbon black for maximum protection.

57 mm & 75 mm

The 57 mm and 75 mm switchable ratchets provide precise on/off control with accessible, easy-to-operate on/off switches on both sides of the block.

Use for:

• Main/jib/spinnaker sheets
• Mainsheet fine-tune
• Traveler controls
• Genoa leads
• Foreguy
• Vangs

Specifications:

• Sheave Ø 57 mm | 2-1/4 in
• Length 103 mm | 4-1/16 in
• Weight 85 g | 3 oz
• Shackle pin Ø 5 mm |  3/16 in
• Maximum line Ø 10 mm | 3/8 in
• Maximum working load 227 kg | 500 lb
• Breaking load 907 kg | 2000 lb