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  • Lewmar 72mm Synchro Block - Single [29927201BK]
    Lewmar

    Lewmar 72mm Synchro Block - Single [29927201BK]

    $53.99
    $78.95
    $53.99
    72mm Synchro Block - SingleLewmar's Synchro Blocks are engineered for speed, efficiency, and superior handling.  Using a combination of scientifically optimized block geometry, a Free-Spin bearing, and a self-aligning head to reduce friction and increase efficiency by up to 40%, over budget blocks on...
    $53.99
    $78.95
    $53.99
  • Schaefer Single Aluminum Block - 51mm Sheave [504-05]Schaefer Single Aluminum Block - 51mm Sheave [504-05]
    Schaefer Marine

    Schaefer Single Aluminum Block - 51mm Sheave [504-05]

    $72.99
    $93.90
    $72.99
    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" (51mm) Thickness 15/16" (24mm) Width 2 1/8" (54mm) Length 4...
    $72.99
    $93.90
    $72.99
  • Schaefer Single Ball Bearing Block [506-05]
    Schaefer Marine

    Schaefer Single Ball Bearing Block [506-05]

    $100.99
    $130.65
    $100.99
    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" (51mm) Thickness 15/16" (24mm) Width 2 1/8" (54mm) Length 4 13/32" (112mm)...
    $100.99
    $130.65
    $100.99
  • Ronstan Series 50 All Purpose Block - Single Stand Up [RF51140]
    Ronstan

    Ronstan Series 50 All Purpose Block - Single Stand Up [RF51140]

    $51.77
    $60.91
    $51.77
    Series 50 All Purpose Block - Single Stand UpFeatures: Exceptionally high working loads Low maintenance, long service life Self-lubricating Acetal polymer sheave ensures low friction and extreme durability Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Mount with 2 x 5mm (3/6")...
    $51.77
    $60.91
    $51.77
  • Harken 22mm Double Micro Block [226]
    Harken

    Harken 22mm Double Micro Block [226]

    $37.95
    $42.55
    $37.95
    22mm Double Micro BlockLow-friction Micro blocks are compact and lightweight. Specifications: Sheave: 22mm / 7/8in. Length: 51mm / 2in. Weight: 43g / 1.5oz. Maximum line: 6mm / 1/4in. Maximum working load: 159kg / 350lb Breaking load: 544kg/ 1200 lb
    $37.95
    $42.55
    $37.95
  • Harken 40mm Carbo Air Pivoting Lead Block w/Aluminum Cam-Matic Cleat [2156]
    Harken

    Harken 40mm Carbo Air Pivoting Lead Block w/Aluminum Cam-Matic Cleat [2156]

    $89.95
    $102.20
    $89.95
    40mm Carbo Air Pivoting Lead Block with Aluminum Cam-Matic® CleatHigh-strength pivoting lead blocks with cams are used for halyard controls on larger keelboats and as “headknockers” on dinghies and beachcats for sheeting directly from the boom. Hole spacing and rivet size are the same...
    $89.95
    $102.20
    $89.95
  • Harken 40mm Carbo Air Fiddle Block w/Swivel Becket [2656]
    Harken

    Harken 40mm Carbo Air Fiddle Block w/Swivel Becket [2656]

    $58.95
    $66.90
    $58.95
    40mm Carbo Air Fiddle Block with Swivel & BecketLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken® Black Magic® line, these small, compact blocks have very high working loads for safe, easy trimming. The 40 mm fiddle is an...
    $58.95
    $66.90
    $58.95
  • Harken 29mm Carbo Air Block w/Swivel [340]
    Harken

    Harken 29mm Carbo Air Block w/Swivel [340]

    $29.95
    $33.60
    $29.95
    29mm 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 trimming.Specifications: Sheave: 29mm / 1-1/8in Length: 66mm / 2-5/8in...
    $29.95
    $33.60
    $29.95
  • Harken 40mm Double Sheave Fishing Block [2184]
    Harken

    Harken 40mm Double Sheave Fishing Block [2184]

    $60.95
    $69.00
    $60.95
    40mm Double Sheave Fishing BlockLow-friction Carbo Air blocks are lightweight, strong, and reliable. These compact blocks have very high working loads and smooth operation to simplify the positioning and retrieval of teaser lines. Specifications: Sheave Ø (mm): 40 mm Sheave Ø (in): 1-9/16 in...
    $60.95
    $69.00
    $60.95
  • Harken 57mm Carbo Single Ratchet Block w/Swivel [2135]
    Harken

    Harken 57mm Carbo Single Ratchet Block w/Swivel [2135]

    $86.95
    $98.25
    $86.95
    57mm Carbo Single Ratchet Block with SwivelCarbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing.Features: On/off switch operates from both sides Standard grip: medium/light air; 10:1 holding power Sheave Ø (mm): 57 mm Sheave Ø (in):...
    $86.95
    $98.25
    $86.95
  • Ronstan Series 40 All Purpose Block - Single - Universal Head [RF41100]
    Ronstan

    Ronstan Series 40 All Purpose Block - Single - Universal Head [RF41100]

    $25.45
    $29.94
    $25.45
    Series 40 All Purpose Block - Single - Universal HeadAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long...
    $25.45
    $29.94
    $25.45
  • Schaefer Spring Loaded/Lined Slide/Aluminum f/1" T-Track [504-82]
    Schaefer Marine

    Schaefer Spring Loaded/Lined Slide/Aluminum f/1" T-Track [504-82]

    $200.99
    $271.45
    $200.99
    Spring Loaded/Lined Slide/Aluminum for 1" 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 adjustment. Specifications: Track Size 1" x 1/8" (25 mm x 3 mm) Max....
    $200.99
    $271.45
    $200.99
  • Ronstan Series 30 Ball Bearing Orbit Block - Single - Becket - Lashing head [RF35101]
    Ronstan

    Ronstan Series 30 Ball Bearing Orbit Block - Single - Becket - Lashing head [RF35101]

    $17.26
    $20.30
    $17.26
    Series 30 Ball Bearing Orbit Block™ - Single - Becket - Lashing HeadBall Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available. This is achieved through all-composite reinforced polymer materials and multiple attachment options. Their precision design provides the optimum number of ball bearings...
    $17.26
    $20.30
    $17.26
  • Ronstan Series 30 Ball Bearing Orbit Block - Stand Up Swivel [RF35140]
    Ronstan

    Ronstan Series 30 Ball Bearing Orbit Block - Stand Up Swivel [RF35140]

    $31.30
    $36.82
    $31.30
    Series 30 Ball Bearing Orbit Block™ - Stand Up SwivelBall Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available. This is achieved through all-composite reinforced polymer materials and multiple attachment options. Their precision design provides the optimum number of ball bearings for minimum friction...
    $31.30
    $36.82
    $31.30
  • Ronstan Series 20 Ball Bearing Block - Double - 2-Axis Shackle Head [RF20202]
    Ronstan

    Ronstan Series 20 Ball Bearing Block - Double - 2-Axis Shackle Head [RF20202]

    $33.71
    $39.66
    $33.71
    Series 20 Ball Bearing Block - Double - 2-Axis Shackle HeadFeatures: Low friction High static and dynamic load capacity Lightweight Precision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction Two-Way head can be fixed at...
    $33.71
    $39.66
    $33.71
  • Ronstan Series 20 Ball Bearing Orbit Block - Single - Dyneema Lashing - Becket Option [RF25109]
    Ronstan

    Ronstan Series 20 Ball Bearing Orbit Block - Single - Dyneema Lashing - Becket Option [RF25109]

    $15.43
    $18.15
    $15.43
    Series 20 Ball Bearing Orbit Block - Single - Dyneema Lashing - Becket OptionThe incredible Series 20 Orbit Block™ is capable of loads up to 250kg (550lb) while weighing a mere 9 grams. It's so light that it needs to be lashed down!Features: Integrated...
    $15.43
    $18.15
    $15.43
  • Lewmar 72mm HTX Block - Single [29197201]
    Lewmar

    Lewmar 72mm HTX Block - Single [29197201]

    $116.99
    $171.95
    $116.99
    72mm HTX Block - SingleYears of design and manufacturing experience coupled with collaboration with boat builders, designers, and sailors have resulted in the Lewmar HTX Hardware Range. Drawing upon the design of the Racing Range, the HTX blocks are constructed simply from high-quality materials,...
    $116.99
    $171.95
    $116.99
  • Ronstan Series 40 Ratchet Orbit Block - Single - Auto - Swivel Shackle Head [RF46100]
    Ronstan

    Ronstan Series 40 Ratchet Orbit Block - Single - Auto - Swivel Shackle Head [RF46100]

    $77.33
    $90.98
    $77.33
    Series 40 Ratchet Orbit Block™ - Single - Auto - Swivel Shackle HeadAutomatic RatchetWith automatic models, the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the...
    $77.33
    $90.98
    $77.33
  • Schaefer Series 5 Flat Base Cheek Block - Stainless Steel Cheeks [505-11]
    Schaefer Marine

    Schaefer Series 5 Flat Base Cheek Block - Stainless Steel Cheeks [505-11]

    $97.99
    $126.55
    $97.99
    Series 5 Flat Base Cheek Block - Stainless Steel CheeksSeries 5 Cheek Block with Stainless Steel cheek. Delrin™ 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...
    $97.99
    $126.55
    $97.99
  • Barton Marine Size 2 Single Cheek Block [N02160]
    Barton Marine

    Barton Marine Size 2 Single Cheek Block [N02160]

    $21.92
    $24.35
    $21.92
    Size 2 Single Cheek BlockPlain Bearing BlocksBarton plain bearing blocks have a precision molded acetal sheave running on a large diameter brass bearing, ensuring free running under the highest of loads.Specifications Sheave size: 35mm x 12mm Max rope diameter: 8mm Safe working load: 370kg...
    $21.92
    $24.35
    $21.92