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Schaefer Hinged Half-Moon Mast Base Block

Schaefer Hinged Half-Moon Mast Base Block

  • Capacity: Line: 3/8", Wire: 3/16", Safe Working Load: 3000 lbs
  • Dimensions: 4-5/8" L x 3/4" W x 3-3/16" H
  • Material: Stainless Steel, Machined Aluminum Sheave
  • Item #: 
    Model #: 


    Shipping Weight: 
    0.80 Lbs.
    List Price: 
    Our Price:
    Note:  This item ships from the manufacturer.
    It typically ships within 2 business days  (more...)
    Status:   null Ships Direct

    Quantity : 


    The Schaefer Hinged Half-Moon Mast Base Block provides a strong, smooth option for leading halyards and control lines to the cockpit.


    • Hinged base adjusts to variable halyard and control line angles
    • Works with wire or small diameter low-stretch line
    • Machined aluminum sheave runs on a smooth self-lubricating Nomex™ - Teflon™ bearing
    • Low profile design keeps control lines and halyards close to the deck
    • Heavy duty polished stainless steel cage
    • High-Strength/Low-Friction


    • Maximum Line Size: 3/8" (10mm)
    • Maximum Wire Size: 3/16" (5mm)
    • Safe Working Load: 3,000 lbs (1361kg)
    • Sheave Diameter: 2-3/8" (60mm)
    • Dimensions: 4-5/8" (118mm) L x 3/4" (19mm) W x 3-3/16" (97mm) H
    • Bearing Height: 1-7/16" (37mm)
    • Fastener Centers: 3-15/16" (84mm)
    • Required Fasteners: 4 x 1/4" (6mm) flat head
    • Weight: 14.5oz. (411g)

    Wichard Forged Shackle Key
    Item #: 607644
  • Accepts Up To 1/2" Shackles
  • Includes Bottle Opener
  •  Include
    Model #:
    Davis Instruments Deluxe Rigging Knife
    Item #: 612768
  • Blade Type: Dura-Edged Straight, Includes 3" Marlin Spike, Key and Driver
  • Material: Stainless Steel
  • Blade Length: 2-1/2"
  •  Include
    Model #:
    McLube Sailkote High Performance Dry Lubricant
    Item #: 608710DRLQUA
  • Applications: Sails, Hulls, Rigging, Deck Hardware and Anything that Moves
  • Forms a Hard, Smooth, Ultra-Slick, Hydrophobic Dry Coating
  • Will Not Attract Dirt or Contaminants, Container: Quart
  •  Include
    Model #:

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