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Harken Blocks - 125mm Black Magic

Harken

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Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems.

Find Harken 125mm Black Magic Blocks at MAURIPRO Sailing US. We are your go-to online store for all sailboat equipment!

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125 mm Black Magic (Imperial)
Code Part No. Description Sheave Dia.
(in)
Length
(in)
Height (in) Weight
(oz)
Shackle pin Dia.
(in)
Clevis pin Dia. (in) Max Line Dia.
(in)
Maximum Working Load
(lb)
Breaking Load
(lb)
Fasteners (FH)
(in)
125 mm
HAR3255 3255 Single loop* 4 15/16 6   23.78     3/4 11000 22000  
HAR3256 3256 Single/swivel  4 15/16 10   37.31 1/2   3/4 11000 22000  
HAR3261 3261 Stand-up** 4 15/16 9 1/16   44.72     3/4 11000 22000  
HAR3267 3267 Center becket   2 3/8   4.8       3667    
HAR3259 3259 Single 4 15/16 7 11/16   29.76   3/4 3/4 11000 22000  
HAR3260 3260 Single/becket 4 15/16 9 1/2   33.52   3/4 3/4 11000 22000  
HAR3257 3257 Single 4 15/16 6 15/16 1 11/16 34.29     3/4 11000 22000 4 x 1/2
HAR3258 3258 Double 4 15/16 6 15/16 2 13/16 60.35     3/4 7260 14520 4 x 1/2
*Loop not included. **Includes padeye. Uses hole spacing and base dimensions of 648 padeye. Maximum working load decreases at varying angles. 

125 mm Black Magic (Metric)
Code Part No. Description Sheave Dia.
(mm)
Length
(mm)
Height
(mm)
Weight
(g)
Shackle pin Dia.
(mm)
Clevis pin Dia. (mm) Max Line Dia.
(mm)
Maximum Working Load
(kg)
Breaking Load
(kg)
Fasteners (FH)
(mm)
125 mm
HAR3255 3255 Single loop* 125 163   674     19 11000 9977  
HAR3256 3256 Single/swivel  125 254   1058 12   19 11000 9977  
HAR3261 3261 Stand-up** 125 230   1268     19 11000 9977  
HAR3267 3267 Center becket   60   136       3667    
HAR3259 3259 Single 125 195   844   19 19 4990 9980  
HAR3260 3260 Single/becket 125 240   950   19 19 4990 9980  
HAR3257 3257 Single 125 176 43 972     19 4990 9977 4 x 12
HAR3258 3258 Double 125 176 71.5 1711     19 3292 6585 4 x 12
*Loop not included. **Includes padeye. Uses hole spacing and base dimensions of 648 padeye. Maximum working load decreases at varying angles.

Harken Blocks - 125mm Black Magic

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