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Stand-up bases enable a wide variety of blocks to be held upright, swivel freely, or pivot, ensuring lines have a fairlead under load. This design optimizes line handling and reduces friction during operation. The system is compatible with specific block models for seamless integration.
Compatibility: Use the 1634 stand-up base with Midrange blocks and 57 mm or 75 mm Cruising ESP blocks.
Mounting: The block headpost fits directly into the socket without the need for a shackle.
Specifications
• Brand: Harken
• Reference: 1634
• Weight: 255 g
• Fasteners: 6 RH mm
• Maximum working load: 1588 kg
• Breaking load: 3175 kg
• Base Ø: 73 mm
• Height: 49 mm
• Pin Ø: 8 mm
• Inside socket Ø: 15 mm
• Use with blocks: Midrange/Cruising ESP
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