Harken 40mm Single Swivel Becket Cam Block

Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable.

Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming.

Specifications

• Footnote: Maximum working loads and breaking loads for blocks based on cam strengths. 
• Sheave Ø (mm): 40 mm
• Sheave Ø (in): 1 9/16 in
• Length (mm): 102 mm
• Length (in): 4 in
• Weight (g): 122 g
• Weight (oz): 4.3 oz
• Shackle pin Ø (mm): 4 mm
• Shackle pin Ø (in): 5/32 in
• Maximum line Ø (mm): 6 mm
• Maximum line Ø (in): 1/4 in
• Maximum working load (kg): 136 kg
• Maximum working load (lb): 300 lb
• Breaking load (kg): 272 kg
• Breaking load (lb): 600 lb