
Blocks
Sailing blocks are essential components for optimizing sailboat performance, providing smooth and efficient control over the sails. These marine blocks are available in various sizes and types, including single, double, and triple blocks, designed to handle different line loads and configurations. Constructed from durable materials like stainless steel, nylon, and carbon fiber, sailing blocks are built to withstand harsh marine environments, ensuring long-lasting reliability. Key features to consider include block sheaves, load ratings, and ball bearings for minimal friction and maximum efficiency. Whether you need traveler blocks, deck blocks, or sail handling blocks, the right selection ensures smoother sail trims and quicker adjustments. Leading brands like Harken, Lewmar, and Antal offer high-quality sailing blocks that are easy to install and maintain. Choosing the right block and tackle system for your sailboat enhances maneuverability, improves performance, and provides better control while sailing, making them a must-have for any sailing enthusiast or racer.
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Schaefer Twin Sheet Lead 25x3MM - Black
Schaefer Marine
MSRP: $372.80$279.60Twin Sheet Lead 25x3MM - Black32-77 Twin Sheet Lead block. The anodized aluminum body is machined from 6061-T6 aluminum and articulates to ensure a proper lead. Anodized aluminum sheave runs on Nomex™/Teflon™ bearing for a low-friction high...MSRP: $372.80$279.60 -
SeaSure 1" Bolt Down Block - 00.01CRD
SeaSure
MSRP: $16.70$12.141" Bolt Down BlockThe 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 and light...MSRP: $16.70$12.14 -
SeaSure 25mm Double Block w/Shackle - 00.21CRD
SeaSure
MSRP: $36.12$26.2725mm Double Block with ShackleThe 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 and...MSRP: $36.12$26.27 -
SeaSure 25mm Double Block w/V-Jam - 00.25CRD
SeaSure
MSRP: $51.59$37.5225mm Double Block with V-JamThe 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 and...MSRP: $51.59$37.52 -
SeaSure 25mm Halyard Block - 00.03CRD
SeaSure
MSRP: $15.69$11.4125mm Halyard BlockThe 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 and light...MSRP: $15.69$11.41 -
SeaSure 25mm Shouldered Block - 00.05CRD
SeaSure
MSRP: $15.69$11.4125mm Shouldered BlockThe 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 and light...MSRP: $15.69$11.41 -
SeaSure 25mm Single Block w/Becket - 00.11CRD
SeaSure
MSRP: $26.71$19.4325mm Single Block with BecketThe 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 and...MSRP: $26.71$19.43 -
SeaSure 25mm Single Block w/Clevis Pin - 00.07CRD
SeaSure
MSRP: $20.59$14.9825mm 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...MSRP: $20.59$14.98 -
SeaSure 25mm Single Block w/Shackle - 00.08CRD
SeaSure
MSRP: $25.10$18.2525mm Single Block with ShackleThe 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 and...MSRP: $25.10$18.25 -
SeaSure 25mm Treble Block w/V-Jam - 00.35CRD
SeaSure
MSRP: $61.27$44.5625mm Treble Block with V-JamThe 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 and...MSRP: $61.27$44.56 -
SeaSure Bridge f/25mm Webbing - 05.96CRD
SeaSure
MSRP: $6.75$4.91Bridge for 25mm WebbingThis durable webbing Bridge is made of marine-grade 316 stainless steel.Features:M5 Fixing holesSpecifications:Weight: 0.004kgSize: 25mm webbing Manufacturer : SeaSure Manufacturer Part No : 05.96CRD UPC : 895052001125MSRP: $6.75$4.91 -
SeaSure Clip f/1" Stanchion - 25.05CRD
SeaSure
MSRP: $11.97$8.70Clip for 1" StanchionThis stainless steel clip is for a 1 in. stanchion.Specifications:Weight: 0.019kg Manufacturer : SeaSure Manufacturer Part No : 25.05CRD UPC : 895052000968MSRP: $11.97$8.70