Sea Sure 00.11CRD 25mm Single Block with Becket

The Sea Sure 00.11CRD is a 25mm single block with becket designed for sailboats and marine rigging applications. This plain bearing block is part of Sea Sure's oldest and best-selling product lines, trusted by sailors worldwide for its durability and lightweight construction.

Construction & Materials:

• Marine-grade stainless steel side plates and rivets for corrosion resistance
• Arnite (high-performance plastic) sheave that is incredibly hard-wearing and lightweight
• Plain bearing design for reliable performance
• Becket attachment at one end for creating purchase systems
• Clevis pin attachment at the opposite end for easy mounting to fixed points

Common Applications:

• Control lines and halyards
• Outhauls and kicking straps
• Furling lines and cunninghams
• Traveller controls and leech lines
• Dinghy spinnaker sheets and guys
• Lifting systems and mechanical advantage setups
• Garage door mechanisms and storage solutions

The 25mm sizing is suitable for ropes up to 8mm diameter. The becket end allows you to create 2:1 or higher purchase systems, while the clevis pin attachment provides a secure connection to deck hardware, shackles, or other rigging components. The hollow axle rivet can also serve as a tie-through becket for lines up to 4mm.