Blocks

22mm Micro Block with BecketLow-friction Micro blocks are compact and lightweight. Specifications:Sheave: 22mm / 7/8in.Length: 51mm / 2in.Weight: 21g / .75oz.Maximum line: 6mm / 1/4in.Maximum working load: 91kg / 200lbBreaking load: 544kg/ 1200 lb

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

29mm 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 high working loads for safe, easy trimming...

Series 30 Utility Block - Single, Becket, Loop HeadFeatures:Lightweight durable constructionEconomicalMaintenance freeProduct Information:Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets...

Stub Hinge 63mm x 33mmThis hinge was fabricated from marine-grade 316 stainless steel and electro-polished for a long-lasting high finish. Features:The pins of the hasps and staples are welded in place for added securitySpecifications:Closed...

Size 1 Single Swivel Block with BecketWith the unique super-low friction ball race systems, featuring acetal sheaves and delrin ball bearings, running on a large diameter center boss. This allows us to fit more load-bearing balls, which ensure extremely...

Series 25 Utility Block™ - Single - Swivel Shackle HeadStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a...

25mm Single Block with Clevis PinThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing...

Series 30 Ball Bearing Block - Single - Loop TopFeatures:Low friction 2-stage ball bearing system provides consistent performance over the full working load rangeHigh static and dynamic load capacityLight weightVersatile head fittingsSheaves running on...

Size 2 Single Swivel BlockA strong, lightweight range of blocks for use on dinghies and dayboats or as lead blocks on larger craft. Size 2 - Single Swivel Block.

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.SpecificationsSheave size: 35mm x 12mmMax rope...

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 steel balls in a captive grooved race and has a 250 lb (113 kg)...