double bullet blocks
Harken Harken sailboat hardware
  • double bullet blocks

Harken Double Bullet Block

Harken Double Bullet blocks lead control lines aft. Low friction design with have parallel sheaves for multiple lines or tackle. Bullet 084 and Big Bullet 127 accept line while Bullet 100 has increased load strength for wire.

They are compact and lightweight, with fast trim and release under high or low loads. Free-rolling Delrin ball bearings, sheave sideplates, UV-stabilized with carbon-back additive for maximum protection.

Use for Outhauls, Vangs, Barberhaulers, Cunninghams, Traveler controls, Furling line leads and Flag halyards.

IN STOCK - Available for pickup
$43.80 / ea
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Tech Spec Product Info User Generated Content



084 Bullet


100 Double Wire


127 Big Bullet

Sheave diameter  1-1/8 inch  1-1/8 inch  1-1/2 inch 
Length  2-3/4 inch  2-3/4 inch  3-1/2 inch 
Weight  2.5 oz  2.75 oz  4.25 oz 
Max. line diameter  5/16 inch  5/16 inch  3/8 inch 
Shackle pin diameter  3/16 inch  3/16 inch  1/4 inch 
Safe Working Load  400 lbs  750 lbs  600 lbs 
Breaking Strength  2000 lbs  2000 lbs  2000 lbs 
BRAND: Harken
Type: Blocks and Sheaves
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