Harken Black Magic Aluminum Footblock with Lockoff - 75 mm (2 15/16") - 3236

Harken Black Magic aluminum footblock with lockoff is designed to redirect control lines on deck while providing temporary line securing capability for high-load sailing applications. Hard Lube-anodized aluminum sideplates and sheaves, combined with Torlon® roller bearings, support smooth low-friction operation and long-term durability in demanding marine environments.

Features:

• Designed to redirect control lines on deck
• Integrated lockoff temporarily secures loaded sheets and control lines
• Hard Lube-anodized aluminum sideplates and sheaves provide UV protection and durability
• Center cage keeps Torlon® roller bearings separated and parallel to reduce friction
• Accepts metric or imperial flathead mounting fasteners
• Fasteners are concealed after installation for a clean appearance

Specifications:

• Sheave Diameter: 2 15/16" (75 mm)
• Dimensions (L x H): 4 3/8" x 1 1/4" (111 x 32 mm)
• Maximum Line Diameter: 9/16" (14 mm)
• Fasteners: 5/16" FH (8 mm)
• Number of Fasteners: 4
• Maximum Working Load: 5,250 lbs (2,380 kg)
• Breaking Load: 10,500 lbs (4,762 kg)
• Weight: 11.28 oz (320 g)
• Dimensions:
  • A: 15/32" (11.5 mm)
  • B: 1 1/8" (28.5 mm)
  • C: 2 3/4" (70.5 mm)
  • D: 13/16" (21 mm)
  • E: 3" (77 mm)
  • F: 4 5/16" (110 mm)
  • G: 21/32" (17 mm)

Owner's Manual