Schaefer 5 Series Double Block - 504-25

Schaefer 5 Series Double Block (504-25) is strong, smooth and reliable. They are perfect for medium sized cruising and racing yachts and in combination with larger series blocks on bigger yachts.

Features:

• 3-Way swivel head can be set to swivel 360° or can be locked into place with a set screw
• Universal head allows for many mounting options when combined with Schaefer's Universal Adapters
• Smooth UV resistant, Delrin™ sheaves
• High strength to weight ratio
• Metal cheeks are more UV resistant and can take more use and abuse then plastic blocks

Specifications:

• Typical boat Size: Mainsheet systems, halyard leads and genoa leads to 28', Control lines to 36'
• Maximum Line Size: 7/16" (11mm)
• Safe Working Load: 1750lbs. (795kg)
• Dimensions: 5-1/16" (129mm) L x 2-1/8" (54mm) W x1-21/32" (42mm) T
• Sheave Diameter: 2" (51mm)
• Pin Diameter: 1/4" (6mm)
• Weight: 8.3oz. (235g)