Mast Base Lead Block Standard
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HARKENMast Base Lead Block Standard


In stock online.
Model # 367070 | Mfg # 1986UPC # 97653016113
Mast Base Lead Block Standard




Mast Base Lead Block Standard

Name Value
Ball Bearings Delrin
Becket No Becket
Diameter 3/8 Inch or 10 mm
Direction Any
Integral Cleat No Integral Cleat
Length 3 13/16 Inches
Mount Type Mechanical Fasteners
Ratchet Non Ratcheting
Safe Working Load 750 Pounds
Sheave Diameter 44 mm
Type Single Upright

Product Overview

For leading lines aft and over cabin tops or coamings. Narrow sheave carriers permit mounting several in a small area. Low lead profile keeps lines close to the deck. Standard block features a stainless shell, Delrin sheaves and roller bearings. High-load blocks have aluminum sheaves with ball bearings and Teflon-composite bushings designed to carry the high static loads of halyards.

  • Sheave: 1-3/4"
  • Ball Bearings: Standard: Delrin; Hi-Load: carbon-black bushings
  • Sheave Size: 1986: 1-3/4" (44mm); 1988 & 3002: 2-1/4" (57mm)
  • Line Diameter: 3/8" max.
  • Cheek Material/Finish: Standard: Polished stainless; Hi-Load: anodized aluminum


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