Harken Single Blocks

The 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 captive grooved race and has a 250 lb (113 kg) maximum working load...

The 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 captive grooved race and has a 250 lb (113 kg) maximum working load. The...

Element 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 required to protect the sheave with a proven...

Element 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 required to protect the sheave with a proven...

Element 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 required to protect the sheave with a proven...

Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats...

Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats...

Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats...

Black Magic air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. A center...

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 styles lets these blocks adapt to almost all control line applications. Specifications Sheave diameter: 1...

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 styles lets these blocks adapt to almost all control line applications. Wire Bullet blocks use roller...

Low-friction carbo 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 diameter: 1 1/8"...

Harken Soft-Attach Fly blocks are designed to provide strength without mass, providing sailors with big power in a low-aero package. Designed specifically for high-tech line, these efficient blocks have an incredible working load for their small size...

The low friction Harken carbo air block 40 mm with swivel are lightweight, strong, reliable and affordable sailing pulleys. Companions to the popular Harken black magic block line, these small, compact blocks have very high working loads for safe, easy...

Low-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 diameter: 2...

The Harken 40 mm cheek blocks in the midrange size are low friction carbo air blocks which are designed to be lightweight, strong and reliable. The block stands up with the help ofthe spring and can tilt in place to adjust to your needs. Companions to...

Low-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 diameter: 1...

Low-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 diameter: 1...

Low-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 diameter: 2...

Low-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 diameter: 2...

Low-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 excellent choice...

Low-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 diameter: 2...

The Harken 57 mm Carbo Ratchamatic Block for 10 mm sailing rope with aluminium sheave and frame comes with swiveling shackle that can be locked in place stopping it from twisting if desired. The Carbo Ratchamatic is a load sensing block that feeds rope...

Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing. Features Glass-filled nylon sideplates: Load-carrying curved bearing races Machined hardkote-anodized aluminum sheaves: Strength...

The high-strength composite T2 is the first block with no metal shackles or rivets. It is used for traveler controls, mainsheets and vangs, cascades, bridles, and other systems where small, lightweight blocks are called for. The T2 Loop’s on/off...

The patented T2 Ratchamatic is Harken’s newest block to feature the T2 line’s styling and soft-attachment system. The weight of this high-strength block is only a few ounces. This is thanks to composite fiber-reinforced sideplates,...

The patented T2 Ratchamatic is Harken’s newest block to feature the T2 line’s styling and soft-attachment system. The weight of this high-strength block is only a few ounces. This is thanks to composite fiber-reinforced sideplates,...

The high-strength composite T2 is the first block with no metal shackles or rivets. It is used for traveler controls, mainsheets and vangs, cascades, bridles, and other systems where small, lightweight blocks are called for. The T2 can be tied, spliced,...

The high-strength composite T2 is the first block with no metal shackles or rivets. It is used for traveler controls, mainsheets and vangs, cascades, bridles, and other systems where small, lightweight blocks are called for. The T2 can be tied, spliced...

Low-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 diameter: 1...

The 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 captive grooved race and has a 250 lb (113 kg) maximum working load...

The 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 captive grooved race and has a 250 lb (113 kg) maximum working load. Matches...

The 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 captive grooved race and has a 250 lb (113 kg) maximum working load...

Low-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 diameter: 7/8" (22 mm) Maximum line diameter: 1/4" (6 mm) Fasteners: 4...

Low-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 diameter: 7/8" (22 mm) Shackle pin diameter: 5/32" (4 mm) Maximum line...

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 styles lets these blocks adapt to almost all control line applications. Specifications Sheave diameter: 1...

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 styles lets these blocks adapt to almost all control line applications. Specifications Sheave...

Lightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes. The 466 features a forkhead and becket making it useful for vangs, halyards and control lines. Specifications Sheave diameter: 1" (25 mm)...

Lightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes. Specifications Sheave diameter: 1" (25 mm) Shackle pin diameter: 3/16" (5 mm) Maximum wire diameter: 3/32" (2 mm) Maximum line diameter:...