Harken is a trusted name in sailing hardware, and its blocks run smooth under load thanks to quality bearings and tough sheaves. This collection covers single, double and triple blocks plus micro blocks and beckets. Choosing the Right Harken Block Start with sheave size, listed in millimeters such as 16mm or 22mm. Larger sheaves handle thicker line and higher loads with less friction. Then count the sheaves you need. A single block changes direction, while double and triple blocks build the purchase you need in a mainsheet or vang system. Beckets, Swivels and Load Ratings A becket gives you a fixed attachment point to dead-end a line, which is essential in a block and tackle setup. Swivel blocks rotate to...
16mm Triple 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...
16mm Double Block with Becket 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...
16mm Double 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...
16mm Block with BecketThe 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...
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...
29mm Double Carbo Air BlockLow-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...
16mm Forkhead 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...
29mm Triple 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...
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....
22mm Micro Block with SwivelLow-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:...
22mm Fiddle Micro Block with V-Jam & BecketLow-friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats...
22mm Fiddle Micro Block with V-JamLow-friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats of all...
22mm Triple Micro Block with Cam CleatLow-friction Micro blocks are compact and lightweight. Specifications: Sheave: 22mm / 7/8in. Length: 51mm / 2in. Weight: 99g / 3.5oz. Maximum line: 6mm...
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...
22mm Double Micro Block with BecketLow-friction Micro blocks are compact and lightweight. Specifications: Sheave: 22mm / 7/8in. Length: 64mm / 2.5in. Weight: 43g / 1.5oz. Maximum line: 6mm /...
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...
45mm Triple Element Block with Swivel & BecketElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s...
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...
45mm Double Element Block with Swivel & BecketElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s...
45mm Single Element Block with Swivel & BecketElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s...
Harken is a trusted name in sailing hardware, and its blocks run smooth under load thanks to quality bearings and tough sheaves. This collection covers single, double and triple blocks plus micro blocks and beckets.
Start with sheave size, listed in millimeters such as 16mm or 22mm. Larger sheaves handle thicker line and higher loads with less friction. Then count the sheaves you need. A single block changes direction, while double and triple blocks build the purchase you need in a mainsheet or vang system.
A becket gives you a fixed attachment point to dead-end a line, which is essential in a block and tackle setup. Swivel blocks rotate to align with the load and reduce twist. Always match the block working load to your line and rig loads. Micro and high-load Harken blocks cover everything from dinghy control lines to keelboat sheets, so check the rated load before you rig.
The number refers to the sheave size, such as 16mm or 22mm. A larger sheave accepts thicker line and runs with less friction under higher loads.
A becket is a fixed attachment point on the block where you can tie off or dead-end a line. It is needed when you build a multi-part block and tackle for extra purchase.
Check the maximum line diameter and working load listed for each Harken block. Choose a sheave size that accepts your line and a working load that exceeds your expected rig loads.
