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These low-profile mastbase halyard lead blocks are engineered for efficiency and space-saving. They are exceptionally lightweight, allowing multiple blocks to be grouped within a compact area at the mastbase. This design facilitates organized halyard routing without adding unnecessary weight aloft.
Low Profile: The compact design allows for easy grouping in a small area at the mastbase.
Lightweight Construction: These blocks are designed to minimize weight while maintaining durability.
Specifications
• Brand: Harken
• Reference: 3123
• Sheave Ø: 102 mm
• Length: 130 mm
• Width: 41 mm
• Weight: 708 g
• Maximum line Ø: 18 mm
• Fasteners: 16 HH mm
• Maximum working load: 4990 kg
• Breaking load: 9980 kg
• Height: 130 mm
• Number of fasteners: 2






