Harken® 448 Halyard Lead Block

SKU: 448100



Harken® Halyard Lead Block is designed for all control applications on smaller boats where up to 3/8" (10 mm) line is used. Compact and lightweight with a sheave diameter of 1-1/2" (38 mm), these blocks have a fast trim and release under both high and low loads. This low-friction Halyard Lead Block leads control lines aft and is ideal for halyards, vangs, outhauls, cunninghams and more.


  • Helps to Keep Sidedecks Clear
  • UV-Stabilized Delrin© Free-Rolling Ball Bearings
  • UV-Stabilized Delrin© Sheave
  • Marine Grade 316 Stainless Steel Side Plates and Mounting Plate
  • Compact and Lightweight
  • Fast Trim

Item Specs:

  • Number of Sheaves: 1
  • Weight: 2.1 ounces (60g)
  • Maximum Line Diameter: 3/8 inch (10mm)
  • Maximum Working Load: 300 pounds (136kg)
  • Breaking Strength: 600 pounds (272kg)