Product Description

Harken Stand-up bases allow a wide variety of blocks to be held upright, swivel freely, or pivot so lines have a fair lead under load.

Use the1634 Harken stand-up base with Harken Midrange blocks and 57 mm or 75 mm Harken Cruising ESP blocks. Block headpost fits into socket without shackle. The low-profile design is ideal for mastbase and halyard lead blocks.

Part Number: 1603

Imperial Metric
Weight 0.74 oz 21 gr
A 2 1/2" 64 mm
B 1 3/8" 35 mm

Harken Blocks

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Harken Midrange Stand-Up Spring
Original Price: $ 3.30
Price: $ 2.90

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