SCHAEFER 51mm 5 Series Block - Swivel, 504-05

Schaefer 5 Series single Aluminum Block with Delrin™ sheave ensures smooth operation with the high safe working load.

Used extensively for sheet blocks on small- to mid-sized keelboats, and as control line blocks for larger offshore boats. Suitable as mast-base or lead blocks on small- to mid-sized boats. Adaptable universal three-way head. Black anodized aluminum or stainless steel cheeks. Stainless steel straps and posts.

• 3-Way swivel head can be set to swivel 360° or can be locked to avoid twist
• Universal design suits diverse applications and mounting options
• Single with snap shackle and fiddle styles
• Smooth UV resistant, Delrin™ sheave
• Accepts Schaefer "universal" adapters for custom mounting
• High strength-to-weight ratio