Antal OPF 50 mm Swivel Block with 5 mm Shackle
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

Antal OPF 50 mm Swivel Block with 5 mm Shackle

  • Single Block, (3) Positions Swiveling Head
  • Safe Working Load: 600 kg
  • Maximum Line Size: 10 mm
  • Item #: 
    Model #: 
    Shipping Weight: 
    0.50 Lbs.
    List Price: 
    Reg. Price:
    Sale Price:





    • Antal's OPF Series is a "One Piece Frame" block without pins or screws
      • It is a light and strong solution
      • The one-piece aluminum extruded body is the strongest and lightest solution, no assembling pin rivets or screws and nuts
      • Material: CNC machined, polished, hard black anodized and Teflon coated
        • A hard, black anodized and Teflon coated aluminum frame in one piece
    • A complete range from 60 to 140 mm sheaves in single, double, triple, fiddle, and deck versions, for webbing or shackle connection
    • Sizes are based on the range of HR shackles available and on their safe working load (SWL)
    • The HR Swivel Head
      • Made in high resistance stainless steel
      • (3) Positions
      • Swiveling head
      • Longitudinal lock
      • Transversal lock
      • HR shackles included
    • The Resin Sheave runs on the main Composite Fiber bearing and on a ground stainless steel hub with friction high loads
      • No lubricant required
      • The self-captive side ball bearing reduces the friction and makes disassembling, cleaning and maintenance very easy
      • Sheaves are supplied with the stainless steel hub, they are available separately
    • In the OPF 50 series sheaves are riveted and not removable


    • Sheave: 50 mm
    • Line Size: 10 mm
    • Safe Working Load: 600 kg
    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

    Wichard Forged Shackle Key
    Item #: 607644
  • Accepts Up To 1/2" Shackles
  • Includes Bottle Opener
  •  Include

    Reg. Price

    Sale Price

    Model #:

    Allen Stainless Steel Medium Single Ring Padeye
    Item #: 604466
  • Type: Folding, Material: Stainless Steel
  • Maximum Working Load: 4,900 Lbs, Break Load: 9,900 Lbs
  • Inside Ring Dimensions: 35 mm Wide, 20 mm Open Height
  •  Include

    Reg. Price

    Sale Price

    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