Schaefer 5 Series Block
Defender Home Page
Phone: 800-628-8225 Fax: 800-654-1616 Int'l.: 860-701-3400 Email: Contact Us
Shipping Info
no sales tax Defender Home Page
Your Cart

View Cart View Shopping Cart
Check My Order(s)
Track My Package(s)
Conversion Chart
Shopping Areas
Boats & Motors
 Defender Seal

Schaefer 5 Series Block

  • Single Block with Universal Head
  • Maximum Line Size: 7/16", Safe Working Load: 1750 lbs
  • Material: Aluminum Cheek, Delrin Sheave
  • Item #: 
    Model #: 
    Shipping Weight: 
    0.25 Lbs.
    List Price: 
    Our Price:
    Status:      In Stock



    Schaefer 5 Series Blocks are strong, smooth and reliable. They are perfect for medium sized cruising and racing yachts and in combination with larger series blocks on bigger yachts.


    • 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™ sheave
    • High strength to weight ratio
    • Metal cheeks are more UV resistant and can take more use and abuse then plastic blocks


    • Typical Use: Mainsheet systems, halyard leads and genoa leads to 28', Control lines to 36'
    • Maximum Line Size: 7/16" (11mm)
    • Safe Working Load: 1750 lbs (795kg)
    • Dimensions: 4-13/32" (112mm) L x 2-1/8" (54mm) W x15/16" (24mm) T
    • Sheave Diameter: 2" (51mm)
    • Pin Diameter: 1/4" (6mm)
    • Weight: 5 oz. (142g)
    WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to

    Schaefer 5 Series Block
    Item #: 602959
  • Single Block with Universal Head
  • Maximum Line Size: 7/16", Safe Working Load: 1750 lbs
  • Material: Polished Stainless Steel, Delrin Sheave
  •  Include

    Model #:
    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 #:

    Have A Suggestion?

    Help us make our site better for everyone! Let us know you've found something wrong or frustrating on this page and we will improve it. Please mark each that apply.

    Product has been improperly categorized
    Page loads too slowly
    Product information is incorrect
    Page has errors or bugs
    Site is frustrating or difficult to use
    Product image is missing or wrong
    Cannot find my size
    Spelling errors on page
    Not enough product information

    Comments or Examples:
    Examples: Missing information such as dimensions and model number, typos, inaccuracies, etc...

    Please include your e-mail address below if you would like us to respond to your comments or questions.             

    Join Our Email List And Receive our Monthly Promotions
    Defender Email Specials