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Harken Opening Footblocks

Harken Opening Footblocks

Opening foot blocks feature a spring-loaded back for fast one handed sheet changes. Housings are Hardkote-anodized aluminum, and the large-diameter sheaves protect sheets and reduce friction. They can also be dismantled while attached to the deck. Use on boats from 20 ft to 50 ft (6 m to 15 m) for spinnaker deflector blocks and genoas.

Each block uses three FH fasteners.

Part # Description Sheave Diameter Length Height Weight Max Line Dia. SWL Breaking Strength Fasteners
in mm in mm in mm oz g in mm lb kg lb kg in mm
HB2113 Single 3 15/16 100 5 1/2 140 1 13/16 46 33.5 950 9/16 14 4409 2000 8818 4000 5/16 FH 8 FH
HB2114 Double 3 15/16 100 5 1/2 140 2 13/16 72 47.5 1347 9/16 14 4409 2000 8818 4000 5/16 FH 8 FH
HB3113 Single 4 15/16 125 6 11/16 170 1 15/16 50 51.0 1446 5/8 16 8377 3800 16755 7600 3/8 FH 10 FH
HB3114 Double 4 15/16 125 6 11/16 170 3 1/8 80 78.0 2213 5/8 16 8377 3800 16755 7600 3/8 FH 10 FH


HB2113 100mm Single Opening Footblock Price: $250.98 HB2114 100mm Double Opening Footblock Price: $360.68
HB3113 125mm Single Opening Footblock Price: $392.20 HB3114 125mm Double Opening Footblock Price: $597.54
HBG141 Ball for Footblock HB2114 Price: $0.49


Harken Mastbase Halyard Lead Blocks

Harken Mastbase Halyard Lead Blocks

Low-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase. Flared cheeks prevent chafe on the halyards.

Over-the-top blocks lead lines aft over cabin houses, coamings, and splashguards. They feature high-load sheaves and come in single, double, and triple configurations.

Part # Description Sheave Dia. Width Length Height Max Line Dia. Weight SWL Breaking Strength Fasteners
in mm in mm in mm in mm in mm oz g lb kg lb kg in mm
H1986 Halyard Lead Block 1 3/4 44 7/8 22 3 13/16 97 2 1/4 57 3/8 10 3.36 95 750 340 1500 680 1/4 RH 6 RH
H1988 Mastbase Block/Fixed 2 1/4 57 1 3/8 35 3 3/16 81 2 7/8 73 3/8 10 6.2 175 2500 1136 5000 2273 1/4 FH 6 FH
H1990 Mastbase Block/Fixed 3 76 1 5/8 41 4 5/8 117 3 3/4 95 1/2 12 11.5 326 5000 2273 10000 4545 5/16FH 8 FH
H3002 Single Over-The-Top Block 2 1/4 57 1 3/8 35 3 1/4 83 3 1/4 83 3/8 10 6.4 181 2500 1136 5000 2273 1/4 FH 6 FH
H3003 Double Over-The-Top Block 2 1/4 57 2 7/16 62 3 1/4 83 3 1/4 83 3/8 10 12.2 346 2500 1136 5000 2273 1/4 FH 6 FH
H3004 Triple Over-The-Top Block 2 1/4 57 3 1/2 89 3 1/4 83 3 1/4 83 3/8 10 18.1 513 2500 1136 5000 2273 1/4 FH 6 FH
H3123 Mastbase Block/Fixed 4 102 1 5/8 41 5 1/8 130 5 1/8 130 11/16 18 24.9 708 11000 4990 22000 9980 5/8 HH 16 HH


H1986 44mm Halyard Lead Block Price: $64.55 H1988 57mm Mastbase Block, Fixed Price: $172.52
H1990 76mm Mastbase Block, Fixed Price: $265.23 H3002 57mm Over-The-Top Block, Single Price: $172.52
H3003 57mm Over-The-Top Block, Double Price: $345.66 H3004 57mm Over-The-Top Block, Triple Price: $502.66
H3053 Mastbase Block Fixed Price: $321.35 H3123 102mm Mastbase Block, Fixed Price: $416.24


Harken Flip-Flop Blocks

Harken Flip-Flop Blocks

The high-load flip-flop blocks pivot around the line axis to keep the line close to the deck. Hinged construction allows variable leads. Lockoff provides temporary stop to free up winches.

High-load bearing system has Teflon composite bushing, sideload balls. Block mounts on machined aluminum feet. Pivots easily on plastic isolators.

Part # Description Sheave Dia. Width Length Height Max Line Dia. Weight SWL Breaking Strength Fasteners
in mm in mm in mm in mm in mm oz g lb kg lb kg in mm
H1987 Flip-Flop Block* 3 76 2 7/8 72 6 152 4 100 1/2 12 17.37 493 5000 2273 10000 4545 5/16 SH 8 SH
H1989 Flip-Flop Block, Lockoff* 3 76 2 7/8 72 6 152 4 100 1/2 12 21.1 598 5000 2273 10000 4545 5/16 SH 8 SH
H3122 Flip-Flop Block** 2-1/4 57 2-1/4 57 4-3/8 111 2-7/8 73 3/8 10 9 255 2500 1136 5000 2273 5/16 SH 8 SH
H3194 Flip-Flop Block, Lockoff** 2-1/4 57 2-1/4 57 4-3/8 111 2-7/8 73 3/8 10 9 255 2500 1136 5000 2273 5/16 SH 8 SH

*5/16" (8mm) SH, **1/4" (6mm) SH



H1987 Flip-Flop Block Price: $315.22 H1989 Flip-Flop Block, Lockoff Price: $346.85
H3194 57mm SB Flip Flop Block w/Lockoff Price: $269.98


Harken Crossover

Harken Crossover

Crossover blocks provide a cleaner, more efficient deck. These easy-to-install blocks mount behind the stopper pank on each side of the cabin house and can route any line to the winch on the oppsosite side. A large, strong base and sculpted backing plates protect cored decks. Features a built-in riser. Fastener included.

Use the H1984 for boats up to 38 ft (11.5 m) and the H1981 for boats up to 48 ft (15 m).

Part # Sheave Diameter Base Diameter Height Max Line Diameter Weight SWL Breaking Strength
in mm in mm in mm in mm oz g lb kg lb kg
H1984 1 3/4 44 2 1/16 52 1 1/4 32 3/8 10 4.2 119 2000 907 4000 1814
H1981 2 3/16 56 2 5/8 66 1 7/16 36 7/16 12 8.0 227 3000 1361 6000 2721


H1981 Crossover Block Large Price: $172.88 H1984 Crossover Block Small Price: $155.23

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