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Harken 57mm Aluminum Low Load Double Block, Swivel

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Product Description

Harken 57mm Aluminum Low-load Double block, swivel

Description - 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.

Sheave Ø (mm) - 57

Sheave Ø (in) - 2 1/4

Length (mm) - 132

Length (in) - 5 3/16

Weight (g) - 342

Weight (oz) - 12.05

Shackle pin Ø (mm) - 8

Shackle pin Ø (in) - 5/16

Maximum line Ø (mm) - 12

Maximum line Ø (in) - 7/16

Maximum working load (kg) - 1250

Maximum working load (lb) - 2755

Breaking load (kg) - 2500

Breaking load (lb) - 5510

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.