Maximize sail trimming efficiency with Harken 40mm Carbo Quad Block. Designed for high-load situations, these low-friction, lightweight blocks offer strength and reliability.

• Sheave Ø (mm): 40 mm
• Sheave Ø (in): 1 9/16 in
• Length (mm): 94 mm
• Length (in): 3 11/16 in
• Weight (g): 170 g
• Weight (oz): 6 oz
• Shackle pin Ø (mm): 5 mm
• Shackle pin Ø (in): 3/16 in
• Maximum line Ø (mm): 10 mm
• Maximum line Ø (in): 3/8 in
• Maximum working load (kg): 660 kg
• Maximum working load (lb): 1455 lb
• Breaking load (kg): 1383 kg
• Breaking load (lb): 3050 lb