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Blocks

Sailing blocks. Buy online with Fosters, the home of quality sailing & yachting hardware for over 100 years. Stockists of Harken, Ronstan, Cleveco, HYE, Spinlock
  • ANTAL Barber Block 40mm

    Original price $313.35 - Original price $313.35
    Original price
    $313.35
    $313.35 - $313.35
    Current price $313.35
    Out of stock

    The new Antal Barber Block is a snatch block with low-friction-ring head. It provides:    - an immediate entry of the sheet (the cheekplate revolve...

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  • ANTAL Snatch Block

    Original price $287.27 - Original price $399.83
    Original price
    $287.27 - $399.83
    $287.27 - $399.83
    Current price $287.27
    Out of stock

    The cheekplate revolves around the sheave axle allowing the block to open; a safety pin, which engages automatically on closing, stops the block fr...

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  • ANTAL Snatch Hook

    Original price $217.14 - Original price $253.30
    Original price
    $217.14 - $253.30
    $217.14 - $253.30
    Current price $217.14
    Out of stock

    ANTAL Santch Hooks can be easily hooked to a genoa or a spinnaker sheet: the lightest and strongest solution for a line control. Aluminium made, hi...

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  • BLOCK CLEVECO SINGLE SWIVEL 48MM

    Original price $52.98 - Original price $52.98
    Original price
    $52.98
    $52.98 - $52.98
    Current price $52.98
    Out of stock

    CLEVECO BLOCK SINGLE SWIVEL TOP 48MM. Ideal cost effective and long lasting option for the smaller cruising yacht. Made in NZ. 48 x 13mm (1 13/16" ...

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  • CLEVECO BLOCK 48MM SINGLE

    Original price $46.31 - Original price $46.31
    Original price
    $46.31
    $46.31 - $46.31
    Current price $46.31
    Out of stock

    Cleveco 48mm inline fiddle block with slotted top. Ideal for smaller keelers and cruising boats. A very sturdy and long lasting block. Made in NZ. ...

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  • CLEVECO BLOCK 57MM FIDDLE BKT

    Original price $81.20 - Original price $81.20
    Original price
    $81.20
    $81.20 - $81.20
    Current price $81.20
    Out of stock

    Cleveco 57mm inline fiddle block with ferrule top. Ideal for smaller keelers and cruising boats. A very sturdy and long lasting block. Made in NZ. ...

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  • CLEVECO BLOCK 60MM SWIVEL BECKET

    Original price $122.56 - Original price $122.56
    Original price
    $122.56
    $122.56 - $122.56
    Current price $122.56
    Out of stock

    Cleveco Keeler block, 60x19mm delrin sheave, shackle top with swivel. Ideal for smaller keelers and cruising boats. A very sturdy and long lasting...

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  • CLEVECO BLOCK FIDDLE 60MM BECKET/CLEAT

    Original price $279.58 - Original price $279.58
    Original price
    $279.58
    $279.58 - $279.58
    Current price $279.58
    Out of stock

    KEELER BLOCK, SINGLE, 59x16mm, INLINE SHEAVE, BECKET & CAM CLEAT V60 x 19mm & 25 x 16mm Delrin Sheaves In Line With Swivel Shackle Top, Bec...

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  • CLEVECO FIDDLE BLOCK EYE 60MM

    Original price $119.68 - Original price $119.68
    Original price
    $119.68
    $119.68 - $119.68
    Current price $119.68
    Out of stock

    Cleveco Keeler block, 60x19mm delrin bottom sheave and 25mm top sheave, ferrule top & becket. Ideal for smaller keelers and cruising boats. A ...

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  • DAVEY Tufnol Block - Fiddle, Swivel, Becket w/Cleat

    Original price $468.86 - Original price $543.51
    Original price
    $468.86 - $543.51
    $468.86 - $543.51
    Current price $468.86
    Out of stock

    Manufactured by Holland Yacht Equipment b.v (HYE) under a GL (Germanischer Lloyd) certificate these blocks are extensively tested and can be found ...

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  • DAVEY Tufnol Blocks

    Original price $52.67 - Original price $353.49
    Original price
    $52.67 - $353.49
    $52.67 - $353.49
    Current price $52.67
    Out of stock

    DETAILS - Manufactured by Holland Yacht Equipment b.v (HYE) under a GL (Germanischer Lloyd) certificate these blocks are extensively tested and can...

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  • HALYARD RESTRAINER 32MM SHEAVE

    Original price $306.41 - Original price $306.41
    Original price
    $306.41
    $306.41 - $306.41
    Current price $306.41
    Out of stock

    Harken Halyard restrainers prevent the halyard from wrapping around the furling foil on boats where the swivel isn’t mounted near the masthead. Sh...

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  • HARKEN 100MM BLACK MAGIC SWIVEL BLOCK BKT

    Original price $2,221.73 - Original price $2,221.73
    Original price
    $2,221.73
    $2,221.73 - $2,221.73
    Current price $2,221.73
    Out of stock

    The entire line of Black Magic Air blocks has been redesigned with a sleek new look. Their unique, performance-packed engineering remains exactly t...

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  • HARKEN 100MM ESP SWIVEL BLOCK SINGLE

    Original price $751.33 - Original price $751.33
    Original price
    $751.33
    $751.33 - $751.33
    Current price $751.33
    Out of stock

    Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearin...

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  • HARKEN 100MM HI LOAD FIXED MASTBASE BLOCK

    Original price $1,284.71 - Original price $1,284.71
    Original price
    $1,284.71
    $1,284.71 - $1,284.71
    Current price $1,284.71
    Out of stock

    Low-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase. Sheave Ø (mm) 102 mm Sheave Ø (in) 4...

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  • HARKEN 2.25 BEARING BLOCK

    Original price $145.33 - Original price $145.33
    Original price
    $145.33
    $145.33 - $145.33
    Current price $145.33
    Out of stock

    The 2.25 in (57 mm) blocks are compact and lightweight, with fast trim and release under high or low loads. Perfect for dinghies, scows, beachcats ...

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  • HARKEN 2.25 THRU DECK BLOCK

    Original price $172.93 - Original price $172.93
    Original price
    $172.93
    $172.93 - $172.93
    Current price $172.93
    Out of stock

    The 2.25 in (57 mm) blocks are compact and lightweight, with fast trim and release under high or low loads. Perfect for dinghies, scows, beachcats ...

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  • HARKEN 22MM SINGLE MICRO BLOCK

    Original price $34.72 - Original price $34.72
    Original price
    $34.72
    $34.72 - $34.72
    Current price $34.72
    Out of stock

    Low-friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats o...

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  • HARKEN 29 DOUBLE WIRE BLOCK

    Original price $152.62 - Original price $152.62
    Original price
    $152.62
    $152.62 - $152.62
    Current price $152.62
    Out of stock

    Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of...

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  • HARKEN 29 MAST EXIT BLOCK

    Original price $65.76 - Original price $65.76
    Original price
    $65.76
    $65.76 - $65.76
    Current price $65.76
    Out of stock

    Low-friction Through Deck Bullet blocks lead control lines through decks and spars. They are compact and lightweight, with fast trim and release un...

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  • HARKEN 29 TRIPLE BULLET BLOCK

    Original price $171.03 - Original price $171.03
    Original price
    $171.03
    $171.03 - $171.03
    Current price $171.03
    Out of stock

    Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of...

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  • HARKEN 2:1 TRAVELLER CONTROL ASSEMBLY

    Original price $1,225.89 - Original price $1,225.89
    Original price
    $1,225.89
    $1,225.89 - $1,225.89
    Current price $1,225.89
    Out of stock

    Fits Harken 32mm Traveller Cars: T3204B.HL, T3224B.HL, T3234B.HL, and T3244B.HL cars. Sheave Ø (mm) 57 mm Sheave Ø (in) 2 1/4 in Length (mm) 14...

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  • HARKEN 38 BIG BULLET BLOCK BECKET

    Original price $91.53 - Original price $91.53
    Original price
    $91.53
    $91.53 - $91.53
    Current price $91.53
    Out of stock

    Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of...

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  • HARKEN 38 BULLET BLOCK 2 WAY

    Original price $94.16 - Original price $94.16
    Original price
    $94.16
    $94.16 - $94.16
    Current price $94.16
    Out of stock

    Low-friction Bullet block with 2 way shackle. Shackle can be set either parallel or perpendicular to the block to change the orientation of the blo...

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  • HARKEN 38 BULLET SWIVEL BECKET BLOCK

    Original price $120.05 - Original price $120.05
    Original price
    $120.05
    $120.05 - $120.05
    Current price $120.05
    Out of stock

    Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of...

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  • HARKEN 38 BULLET SWIVEL BLOCK

    Original price $106.25 - Original price $106.25
    Original price
    $106.25
    $106.25 - $106.25
    Current price $106.25
    Out of stock

    Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of...

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  • HARKEN 38 DOUBLE BECKET BLOCK

    Original price $219.42 - Original price $219.42
    Original price
    $219.42
    $219.42 - $219.42
    Current price $219.42
    Out of stock

    Low-friction Big Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A rang...

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  • HARKEN 38 TRIPLE BECKET BLOCK

    Original price $312.97 - Original price $312.97
    Original price
    $312.97
    $312.97 - $312.97
    Current price $312.97
    Out of stock

    Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of...

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  • HARKEN 38MM WIRE THRU DECK BLOCK

    Original price $197.52 - Original price $197.52
    Original price
    $197.52
    $197.52 - $197.52
    Current price $197.52
    Out of stock

    Lightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes. Sheave Ø (mm) 38 mm Sheave Ø (in...

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  • HARKEN 40MM ESP FOOT BLOCK

    Original price $184.40 - Original price $184.40
    Original price
    $184.40
    $184.40 - $184.40
    Current price $184.40
    Out of stock

    Cruising ESP blocks complement our existing blocks in looks and function but are simpler in design and construction. Sheaves feature sleeve bearing...

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  • HARKEN 4:1/8:1 GROSS/FINE TUNE SYSTEM

    Original price $2,048.62 - Original price $2,048.62
    Original price
    $2,048.62
    $2,048.62 - $2,048.62
    Current price $2,048.62
    Out of stock

    Harken® gross-trim/fine-tune mainsheet systems are easy to install and use. These optimized systems decrease overall line clutter because they use ...

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  • HARKEN 57MM ESP FORKHEAD BLOCK

    Original price $297.76 - Original price $297.76
    Original price
    $297.76
    $297.76 - $297.76
    Current price $297.76
    Out of stock

    Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearin...

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  • HARKEN 57MM ESP LL MASTCOLLAR BLOCK

    Original price $198.08 - Original price $198.08
    Original price
    $198.08
    $198.08 - $198.08
    Current price $198.08
    Out of stock

    Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearin...

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  • HARKEN 57MM S/S ESP FOOT BLOCK

    Original price $610.73 - Original price $610.73
    Original price
    $610.73
    $610.73 - $610.73
    Current price $610.73
    Out of stock

    Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearin...

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  • HARKEN 57MM SB FLIP FLOP BLOCK

    Original price $513.81 - Original price $513.81
    Original price
    $513.81
    $513.81 - $513.81
    Current price $513.81
    Out of stock

    Small Boat Flip-Flop blocks pivot around the line axis to keep the line close to the deck. Hinged construction allows for various lead angles. Sh...

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  • HARKEN 57MM SB RATCHET FLIP FLOP BLOCK

    Original price $615.95 - Original price $615.95
    Original price
    $615.95
    $615.95 - $615.95
    Current price $615.95
    Out of stock

    Small Boat Flip-Flop blocks pivot around the line axis to keep the line close to the deck. Hinged construction allows for various lead angles. Adju...

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  • HARKEN 75MM DOUBLE HEX CROSS BLOCK

    Original price $871.93 - Original price $871.93
    Original price
    $871.93
    $871.93 - $871.93
    Current price $871.93
    Out of stock

    Harken® gross-trim/fine-tune mainsheet systems are easy to install and use. These optimized systems decrease overall line clutter because they use ...

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  • HARKEN 75MM ESP FIDDLE BECKET CAM

    Original price $1,117.12 - Original price $1,117.12
    Original price
    $1,117.12
    $1,117.12 - $1,117.12
    Current price $1,117.12
    Out of stock

    Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearin...

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  • HARKEN ALLOY SHEAVE 114MM

    Original price $1,615.78 - Original price $1,615.78
    Original price
    $1,615.78
    $1,615.78 - $1,615.78
    Current price $1,615.78
    Out of stock

    Big Boat sheaves are available for special applications as well as for replacement sheaves in Big Boat blocks. Made of hardcoat-anodized, PTFE-impr...

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  • HARKEN ALLOY SHEAVE 178MM

    Original price $3,417.19 - Original price $3,417.19
    Original price
    $3,417.19
    $3,417.19 - $3,417.19
    Current price $3,417.19
    Out of stock

    Big Boat sheaves are available for special applications as well as for replacement sheaves in Big Boat blocks. Made of hardcoat-anodized, PTFE-impr...

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  • HARKEN BB DECK ORGANISER 5 SHEAVE

    Original price $3,056.55 - Original price $3,056.55
    Original price
    $3,056.55
    $3,056.55 - $3,056.55
    Current price $3,056.55
    Out of stock

    Use Big Boat deck organizers to lead multiple lines aft to halyard stoppers or winches. Deck organizers feature aluminum hardcoat-anodized side pla...

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  • HARKEN BLACK MAGIC BLOCK SOCK

    Original price $108.82 - Original price $131.03
    Original price
    $108.82 - $131.03
    $108.82 - $131.03
    Current price $108.82
    Out of stock

    Foam-padded block socks slip over your hardware to protect your blocks, deck, and crew. Available in sizes to fit all Harken Black Magic Blocks.

  • HARKEN BLOCK 57MM ESP SWIVEL BKT

    Original price $350.21 - Original price $350.21
    Original price
    $350.21
    $350.21 - $350.21
    Current price $350.21
    Out of stock

    Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearin...

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  • HARKEN BLOCK 57MM NARROW MAST COLLAR

    Original price $192.50 - Original price $199.05
    Original price
    $192.50 - $199.05
    $192.50 - $199.05
    Current price $192.50
    Out of stock

    Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearin...

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  • HARKEN BLOCK 57MM S/S ESP FOOT LOCKOFF

    Original price $727.28 - Original price $727.28
    Original price
    $727.28
    $727.28 - $727.28
    Current price $727.28
    Out of stock

    Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearin...

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  • HARKEN BLOCK 75MM DOUBLE HEX FIDDLE X BLOCK

    Original price $1,562.47 - Original price $1,562.47
    Original price
    $1,562.47
    $1,562.47 - $1,562.47
    Current price $1,562.47
    Out of stock

    Harken® gross-trim/fine-tune mainsheet systems are easy to install and use. These optimized systems decrease overall line clutter because they use ...

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  • HARKEN BLOCK 75MM NARROW MAST COLLAR

    Original price $279.85 - Original price $279.85
    Original price
    $279.85
    $279.85 - $279.85
    Current price $279.85
    Out of stock

    Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearin...

    View full details
  • HARKEN CARBO RATCHET TRIPLE CAM BKT 29 BLOCK 40MM

    Original price $654.53 - Original price $654.53
    Original price
    $654.53
    $654.53 - $654.53
    Current price $654.53
    Out of stock

    Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing. Sheave Ø (mm) 40 mm Sheav...

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