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Sailing - Blocks

157 total items

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

SKU: 55155

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...

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

SKU: 55155
in stock
114 in stock

Sale price $13.63

Save $2.41

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

SKU: 55174

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...

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

SKU: 55174
in stock
15 in stock

Sale price $14.69

Save $2.59

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

SKU: 74715

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...

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

SKU: 74715
in stock
2 in stock

Sale price $48.99

Save $27.01

Schaefer Single Stainless Steel Block - 60mm Sheave [705-05]

SKU: 74741

Single Stainless Steel Block - 60mm SheaveDelrin™ sheave ensures low-friction and high safe working load. Swivel head may be locked in place to eliminate line twist. Specifications: Sheave Dia. 2 3/8"...

Schaefer Single Stainless Steel Block - 60mm Sheave [705-05]

SKU: 74741
in stock
2 in stock

Sale price $96.99

Save $53.21

Ronstan Series 50 All Purpose Block - Single - Universal Head [RF51100]

SKU: 55253

Series 50 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...

Ronstan Series 50 All Purpose Block - Single - Universal Head [RF51100]

SKU: 55253
in stock
18 in stock

Sale price $30.98

Save $5.47

Ronstan Series 40 Ball Bearing Orbit Block - Cheek [RF45151]

SKU: 70626

Series 40 Ball Bearing Orbit Block - CheekFeatures: Ultra Lightweight Low friction 2-stage Orbital ball bearing system Highest working load in its class Low profile and compact High performance cleating...

Ronstan Series 40 Ball Bearing Orbit Block - Cheek [RF45151]

SKU: 70626
in stock
3 in stock

Sale price $29.39

Save $5.18

Barton Marine Size 3 Stanchion Lead Block w/Becket Cam Cleat [N03 591]

SKU: 92660

Size 3 Stanchion Lead Block with Becket & Cam CleatBarton plain bearing blocks have a precision-molded Acetal sheave running on a large diameter brass bearing, ensuring free running under the...

Barton Marine Size 3 Stanchion Lead Block w/Becket Cam Cleat [N03 591]

SKU: 92660
in stock
4 in stock

Sale price $70.99

Save $20.83

Barton Marine Series 4 Single Cheek Block- 54mm [N04 160]

SKU: 82880

Series 4 Single Cheek Block- 54mmPlain Bearing BlocksBarton plain bearing blocks have a precision moulded acetal sheave running on a large diameter brass bearing, ensuring free running under the highest...

Barton Marine Series 4 Single Cheek Block- 54mm [N04 160]

SKU: 82880
in stock
2 in stock

Sale price $30.99

Save $8.66

Schaefer Single Aluminum Block - 60mm Sheave [704-05]

SKU: 74737

Single Aluminum Block - 60mm SheaveDelrin™ sheave ensures smooth operation and a high safe working load. Swivel head may be locked in place to eliminate twisting. Specifications: Sheave Diameter 2 3/8"...

Schaefer Single Aluminum Block - 60mm Sheave [704-05]

SKU: 74737
in stock
2 in stock

Sale price $73.99

Save $41.21

Ronstan Series 30 Utility Ball Bearing Block - Single, Swivel Shackle Head [RF30100]

SKU: 72397

Series 30 Utility Ball Bearing Block - Single, Swivel Shackle HeadFeatures: Low friction 2-stage ball bearing system provides consistent performance over the full working load range. High static and dynamic...

Ronstan Series 30 Utility Ball Bearing Block - Single, Swivel Shackle Head [RF30100]

SKU: 72397
in stock
4 in stock

Sale price $28.33

Save $5

Ronstan Series 30 Ball Bearing Orbit Block - Single - Becket - Swivel Shackle Head [RF35100]

SKU: 55173

Series 30 Ball Bearing Orbit Block™ - Single - Becket - Swivel Shackle HeadBall Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available. This is achieved through all-composite reinforced polymer...

Ronstan Series 30 Ball Bearing Orbit Block - Single - Becket - Swivel Shackle Head [RF35100]

SKU: 55173
in stock
108 in stock

Sale price $20.99

Save $3.70

Schaefer Stand-Up Swivel - Aluminum Block [704-62]

SKU: 74739

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)...

Schaefer Stand-Up Swivel - Aluminum Block [704-62]

SKU: 74739
in stock
4 in stock

Sale price $146.99

Save $81.21

Ronstan Series 30 Utility Block - Cheek, Curved Base [RF285]

SKU: 72300

Series 30 Utility Block- Cheek, Curved BaseFeatures: Lightweight durable construction Economical Maintenance free Product Information:Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance.Applications: Vang,...

Ronstan Series 30 Utility Block - Cheek, Curved Base [RF285]

SKU: 72300
in stock
3 in stock

Sale price $23.40

Save $4.13

Ronstan Series 20 ball Bearing Block - Triple - 2-Axis Shackle head [RF20302]

SKU: 55141

Series 20 Ball Bearing Block - Triple - 2-Axis Shackle HeadFeatures: Low friction High static and dynamic load capacity Lightweight Precision molded Acetal sheaves running on stainless steel or Torlon®...

Ronstan Series 20 ball Bearing Block - Triple - 2-Axis Shackle head [RF20302]

SKU: 55141
in stock
9 in stock

Sale price $39.88

Save $7.04

Harken 29mm Double Bullet Block [084]

SKU: 84712

29mm Double Bullet BlockLow-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 styles lets...

Harken 29mm Double Bullet Block [084]

SKU: 84712
in stock
4 in stock

Sale price $47.99

Save $5.81

Harken 16mm Block [404]

SKU: 79053

16mm BlockThe 16 mm is Harken’s® smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a...

Harken 16mm Block [404]

SKU: 79053
in stock
2 in stock

Sale price $15.99

Save $1.41

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

SKU: 55139

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®...

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

SKU: 55139
in stock
30 in stock

Sale price $29.39

Save $5.18

Ronstan Series 30 Ball Bearing Orbit Block - Double [RF35202]

SKU: 55177

Series 30 Ball Bearing Orbit Block™ - DoubleBall 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...

Ronstan Series 30 Ball Bearing Orbit Block - Double [RF35202]

SKU: 55177
in stock
15 in stock

Sale price $35.69

Save $6.29

Harken 57mm Quad Block Swivel, Center Becket [HSB380]

SKU: 88765

57mm Quad Block Swivel, Center BecketLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working...

Harken 57mm Quad Block Swivel, Center Becket [HSB380]

SKU: 88765
in stock
1 in stock

Sale price $137.99

Save $74.16

Harken 57mm Carbo Quad Block - Swivel [2631]

SKU: 88766

57mm Carbo Quad Block - SwivelLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working...

Harken 57mm Carbo Quad Block - Swivel [2631]

SKU: 88766
in stock
2 in stock

Sale price $185.99

Save $24.81