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Blocks

  • Sale
    Harken 40mm Carbo Air Block w/Swivel 2636

    Harken 40mm Carbo Air Block w/Swivel 2636

    40mm Carbo Air Block with SwivelLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy...

    MSRP: $44.33
    $38.55
  • Sale
    Harken 25mm Wire Block w/Shackle 300

    Harken 25mm Wire Block w/Shackle 300

    25mm Wire Block with ShackleLightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes.Specifications:Sheave: 25mm / 1in.Weight: 28g / 1oz.Shackle pin: 5mm / 3/16in,Maximum wire: 2mm / 3/32in.Maximum...

    MSRP: $52.20
    $45.39
  • Sale
    Harken 22mm Triple Micro Block w/Becket 229

    Harken 22mm Triple Micro Block w/Becket 229

    22mm Triple Micro Block with BecketLow-friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats of all sizes.Specifications:Sheave: 22mm / 7/8in.Length: 64mm / 2.5in...

    MSRP: $58.46
    $50.83
  • Sale
    Harken 45mm Triple Element Block w/Swivel 6240

    Harken 45mm Triple Element Block w/Swivel 6240

    45mm Triple Element Block with SwivelElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount of metal...

    MSRP: $124.70
    $108.43
  • Sale
    Harken 45mm Double Element Block w/Swivel 6238

    Harken 45mm Double Element Block w/Swivel 6238

    45mm Double Element Block with SwivelElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount of metal...

    MSRP: $99.44
    $86.47
  • Sale
    Ronstan RF568 Lead Block RF568

    Ronstan RF568 Lead Block RF568

    RF568 Lead BlockLead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers.When mounted in an inverted position, are frequently used as upright leads.Features:Removable sheaveThe external tabs can be...

    MSRP: $25.83
    $22.46
  • Sale
    Schaefer Spring Loaded/Lined Slide/Aluminum f/1-1/4" T-Track 704-92

    Schaefer Spring Loaded/Lined Slide/Aluminum f/1-1/4" T-Track 704-92

    Spring Loaded/Lined Slide/Aluminum for 1-1/4" T-TrackDelrin™ sheave ensures smooth operation and high safe working load. Anodized aluminum cheeks and stainless steel slider ensure reliability. Polyethylene liner and pin stop allow for easy...

    MSRP: $287.41
    $249.92
  • Sale
    Schaefer Stand-Up Swivel - Aluminum Block 704-62

    Schaefer Stand-Up Swivel - Aluminum Block 704-62

    Stand-Up Swivel - Aluminum BlockSpecifications:Sheave Dia. 2-2/8" (60 mm)Max Line 1/2" (13 mm)Diameter includes urethane base 3-3/8" (86 mm)Height 4-25/32" (120 mm)H2 2-15/32" (63 mm)Fastener Size (4),1/4" RH (6 mm)C/C 1-11/16" (43 mm)SWL 2250 lbs (1020...

    MSRP: $226.05
    $196.57
  • Sale
    Schaefer Single Ball Bearing Block 506-05

    Schaefer Single Ball Bearing Block 506-05

    Single Ball Bearing BlockSingle block with aluminum cheeks and ball bearing sheave. Delrin™ ball bearing sheave ensures low-friction operation. Swivel head may be locked in place to avoid twist. Specifications:Sheave Diameter 2"...

    MSRP: $110.91
    $96.44
  • Sale
    Schaefer Series 5 Flat Base/Alum Cheek/Delrin Sheave 504-11

    Schaefer Series 5 Flat Base/Alum Cheek/Delrin Sheave 504-11

    Series 5 Flat Base/Alum Cheek/Delrin SheaveDelrin™ sheave ensures smooth operation and high safe working load. Stainless steel base distributes loads to a large surface area. Specifications:Sheave Diameter 2" (51 mm)Max. Line 7/16" (11...

    MSRP: $96.80
    $84.18
  • Sale
    Schaefer Single Aluminum Block - 51mm Sheave 504-05

    Schaefer Single Aluminum Block - 51mm Sheave 504-05

    Single Aluminum Block - 51mm SheaveSingle block with anodized aluminum cheeks. Delrin™ sheave ensures smooth operation with high safe working load. Swivel head may be locked in place to avoid twist. Specifications:Sheave Dia. 2"...

    MSRP: $82.97
    $72.15
  • Sale
    Ronstan Series 30 Utility Block- Double, Loop Top and Becket RF83

    Ronstan Series 30 Utility Block- Double, Loop Top and Becket RF83

    Series 30 Utility Block- Double, Loop Top and BecketFeatures:Lightweight durable constructionEconomicalMaintenance freeProduct Information:Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance...

    MSRP: $41.17
    $35.80
  • Sale
    Ronstan Series 30 Utility Block - Triple, Loop Top RF82

    Ronstan Series 30 Utility Block - Triple, Loop Top RF82

    Series 30 Utility Block - Triple, Loop TopFeatures:Lightweight durable constructionEconomicalMaintenance freeProduct Information:Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance.Applications:Vang,...

    MSRP: $45.89
    $39.91
  • Sale
    Ronstan Series 30 Utility Block - Double, Loop Top RF81

    Ronstan Series 30 Utility Block - Double, Loop Top RF81

    Series 30 Utility Block- Double, Loop TopFeatures:Lightweight durable constructionEconomicalMaintenance freeProduct Information:Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance.Applications:Vang,...

    MSRP: $37.44
    $32.56
  • Sale
    Ronstan Series 30 Utility Block - Single, Swivel Shackle Head RF467

    Ronstan Series 30 Utility Block - Single, Swivel Shackle Head RF467

    Series 30 Utility Block - Single, Swivel Shackle HeadFeatures:Lightweight durable constructionEconomicalMaintenance freeProduct Information:Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets...

    MSRP: $35.81
    $31.14
  • Sale
    Ronstan Series 15 Ball Bearing Block - Triple RF15302

    Ronstan Series 15 Ball Bearing Block - Triple RF15302

    Series 15 Ball Bearing Block - TripleFeatures:Smallest and lightest ball bearing block availablePrecision molded acetal sheave running on stainless steel ball bearings provide high performance & low frictionSingle loop head blocks include an O-ring...

    MSRP: $40.79
    $35.47
  • Sale
    Ronstan Series 15 Ball Bearing Utility Block - Cheek Block RF15151

    Ronstan Series 15 Ball Bearing Utility Block - Cheek Block RF15151

    Series 15 Ball Bearing Utility Block - Cheek BlockFeatures:Smallest and lightest ball bearing block availablePrecision molded acetal sheave running on stainless steel ball bearings provide high performance & low frictionSingle loop head blocks...

    MSRP: $24.94
    $21.69
  • Sale
    Ronstan Series 25 Utility Block - Single Swivel Ring Head RF2332

    Ronstan Series 25 Utility Block - Single Swivel Ring Head RF2332

    Series 25 Utility Block - Single Swivel Ring HeadFeatures:Lightweight durable constructionEconomicalMaintenance freeStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can...

    MSRP: $34.24
    $29.77
  • Sale
    Ronstan Series 25 Utility Block - Single, Becket, Loop Head RF572

    Ronstan Series 25 Utility Block - Single, Becket, Loop Head RF572

    Series 25 Utility Block - Single, Becket, Loop HeadFeatures:Lightweight durable constructionEconomicalMaintenance freeStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block...

    MSRP: $28.29
    $24.60
  • Sale
    Ronstan Series 20 Lead Block - Single Pivoting Sheave RF20174

    Ronstan Series 20 Lead Block - Single Pivoting Sheave RF20174

    Series 20 Lead Block - Single Pivoting SheaveFeatures:180 degree pivoting sheaveLead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Precision molded Acetal sheaves running on stainless steel...

    MSRP: $44.14
    $38.38