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Harken 57mm Low Load Double Block

MSRP: $465.00
$408.95
(You save $56.05 )
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SKU:
HR3228
Weight:
0.75 LBS
Shipping:
Calculated at Checkout
Size:
57 mm
Manufacturer part #: 3228

Technical Description
HL Standup Block
-
57 mm
5 3/16 in
132 mm
12.05 oz
342 g
5/16 in
8 mm
7/16 in
12 mm
2755 lb
1250 kg
5510 lb
2500 kg
Manufacturer part #: 3228

Used on offshore boats, these strong, lightweight blocks feature TorlonØ roller bearings for strength and reduced wear. Rollers are housed in a center cage and stay parallel for low-friction efficiency. Sculpted hardcoat-anodized aluminum sideplates protect sideload ball bearings. Dissimilar metals are isolated to minimize corrosion.

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

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

Use for:
  • Sheets
  • Halyards
  • Running backstays
  • Control lines