Harken 222 Big Bullet Block Upright
SKU: 222111
MSRP $53.25/EA
Save 12%
2 Available


The Harken® Big Bullet Block Upright is a low-friction block designed to be mounted and used to lead control lines aft on boats where up to 3/8" (10 mm) line is used. Compact and lightweight with a medium sheave diameter of 1-1/2" (38 mm), these blocks have a fast trim and release easily under both high and low loads. Delrin® ball bearings and sheave give the ultimate low load performance, yet they are capable of working loads of up to 300 pounds (136 kg). The cheeks are also crafted from Delrin, which is UV-stabilized with a carbon-black additive for maximum protection, with marine grade stainless steel mounting brackets. The Big Bullet Block Upright is ideal to be used as a main or jib sheet block on dinghies, as well as perfect for various control line applications such as travelers, cunninghams, boom vangs, and more on offshore boats.


  • UV-Stabilized Delrin© Free-Rolling Ball Bearings
  • UV-Stabilized Delrin© Sheave and Cheeks
  • Marine Grade Stainless Steel Mounting Brackets
  • Compact and Lightweight
  • Fast Trim


Sale Unit: EA
Brand: Harken
Number of Sheaves: 1
Sheave Diameter: 1-1/2 inches (38 mm)
Length: 2-1/4 inches (57 mm)
Weight: 2.5 ounces (71 g)
Maximum Line Diameter: 3/8 inch (10 mm)
Maximum Working Load: 300 pounds (136 kg)
Breaking Strength: 2,000 pounds (907 kg)
Fasteners Required: #10 Round Head (5 mm)(Fasteners Not Included)
Lengthwise Mount Hole Spacing: 1-7/16 inches (38 mm)(Center-to-Center)
Widthwise Mount Hole Spacing: 1-5/16 inches (33 mm)(Center-to-Center)



A. 1.500”
B. 0.375”
C. 1.389”
D. 1.438”

Angle view

A. 0.195”
B. 1.795”
C. 1.947”


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