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Harken 57mm Aluminum Low Load Block, Swivel

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Product Description

Harken 57mm Aluminum Low-load block, swivel

The entire line of Black Magic® AirBlocks® has been redesigned with a sleek new look. Their unique, performance-packed engineering remains exactly the same. These strong, lightweight blocks feature free-rolling high-load Torlon® roller bearings for a high strength-to weight ratio.

Like all AirBlocks®, the three-way head swivels/locks in front/side positions. Blocks are easily disassembled with a single hex wrench.

Low-load blocks use Torlon® rollers and 316 stainless steel shackles. Standard blocks have 17-4PH stainless headposts.

Features:

Sheave Ø (mm) - 57

Sheave Ø (in) - 2 1/4

Length (mm) - 119

Length (in) - 4 11/16

Weight (g) - 154

Weight (oz) - 5.44

Shackle pin Ø (mm) - 6

Shackle pin Ø (in) - 1/4

Maximum line Ø (mm) - 12

Maximum line Ø (in) - 7/16

Maximum working load (kg) - 750

Maximum working load (lb) - 1655

Breaking load (kg) - 1500

Breaking load (lb) - 3310

WASHING INSTRUCTIONS:

Machine wash separately in cold water on a gentle cycle. Tumble dry separately on low heat. Add QE Home Wool Dryer Balls to reduce wrinkles and increases drying efficiency. Touch up with a low heat iron as needed. Do not bleach or dry clean.