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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SeaSure Deck Eye Hole Center - 31mm - 05.31CRD
SeaSure
MSRP: $6.71$4.88Deck Eye Hole Center - 31mmThis deck eye is made from 316 stainless steel, and it went through multiple machining and finishing operations to ensure that it is free of damaging sharp corners and burrs. Specifications:Weight: 0.001kgHeight: 10mmWidth...MSRP: $6.71$4.88 -
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 -
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 General Purpose Block - 02.01CRD
SeaSure
MSRP: $15.86$11.53General Purpose BlockThe 19mm carbon fiber sheave block range is designed for use with abrasive ropes for high-load applications. The outer cage is manufactured from marine-grade 316 Stainless Steel with a hollow stainless steel rivet through the center...MSRP: $15.86$11.53 -
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 Hasp & Staple 52mm - 23.00CRD
SeaSure
MSRP: $26.88$19.55Hasp & Staple 52mmThis hinge was fabricated from marine-grade 316 stainless steel and electro-polished for a long-lasting high finish. Features:The pins of the hinges and staple are welded in place for added securitySpecifications:Closed Length:...MSRP: $26.88$19.55 -
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 -
Harken 57mm Carbo Single Ratchet Block w/Swivel - 2135
Harken
MSRP: $96.30$84.9557mm Carbo Single Ratchet Block with SwivelCarbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing.Features:On/off switch operates from both sidesStandard grip: medium/light air; 10:1 holding...MSRP: $96.30$84.95 -
SeaSure Half Back Flap Hinge - 106mm - 23.13CRD
SeaSure
MSRP: $26.71$19.43Half Back Flap Hinge - 106mmThis 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:Length:...MSRP: $26.71$19.43 -
Harken Midrange Double Block - 1544
Harken
MSRP: $312.10$274.95Midrange Double BlockMidrange blocks’ robust construction makes them ideal to handle the high loads found on medium and large offshore boats. Sheave runs exclusively on a ball bearing system for fast trim and release under any load...MSRP: $312.10$274.95 -
SeaSure Clip f/1.25" Stanchion - 25.07CRD
SeaSure
MSRP: $15.29$11.12Clip for 1.25" StanchionThis stainless steel clip is for a 1.25 in. stanchion.Specifications:Weight: 0.025kg Manufacturer : SeaSure Manufacturer Part No : 25.07CRD UPC : 895052000975MSRP: $15.29$11.12 -
Harken Midrange Single w/Aluminum Sheave Block - 1542
Harken
MSRP: $213.70$187.95Midrange Single with Aluminum Sheave BlockMidrange blocks’ robust construction makes them ideal to handle the high loads found on medium and large offshore boats. Sheave runs exclusively on a ball bearing system for fast trim and release under any...MSRP: $213.70$187.95