Blocks - Harken

High-strength Pivoting Lead Blocks with cams are used for halyard controls on larger keelboats and as "head knockers" on dinghies and beachcats for sheeting directly from the boom. Hole spacing and rivet size are the same as classic models, making...

High-strength Pivoting Lead Blocks with cams are used for halyard controls on larger keelboats and as "head knockers" on dinghies and beachcats for sheeting directly from the boom. Hole spacing and rivet size are the same as classic models, making...

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...

Harken gross-trim/fine-tune mainsheet systems are easy to install and use. These optimized systems decrease overall line clutter because they use less line than traditional gross-trim/fine-tune systems. Specifications Minimum line diameter: 5/16" (8 mm)...

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. Features Single fixed: Integral...

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...

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: 1...

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"...

The V Block delivers another breakthrough in Harken’s loop block series for Grand-Prix racers. Harken engineers have simplified the mechanics by combining the axial and thrust bearings into a single bearing set of V-shaped titanium rollers. The...

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...

Use Footblocks to redirect lines on the deck. Footblocks with lockoffs temporarily secure sheets. Either metric or imperial flathead fasteners may be used for mounting and are not exposed. Sideplates and sheaves Hard Lube-anodized for maximum UV...

Lightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes. Specifications Sheave diameter: 1 1/2" (38 mm) Shackle pin diameter: 1/4" (6 mm) Maximum wire diameter: 1/8" (3 mm) Maximum line diameter:...

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...

Lightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes. Specifications Sheave diameter: 1" (25 mm) Maximum wire diameter: 3/32" (2 mm) Maximum line diameter: 5/32" (4 mm) Fasteners: #10 RH inch (5...

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...

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:...

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...