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  • Harken 29mm Bullet Wire Thru-deck Block with Stainless Steel Cover

Harken 288 29mm Bullet Wire Thru-deck Block with Stainless Steel Cover


Product Description

Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications.

Free-rolling Delrin® ball bearings, sheave and sideplates UV-stabilized with carbon-black additive for maximum protection.

Wire Bullet blocks use roller bearings to carry higher loads and feature Hardkote-anodized PTFE impregnated aluminum sheaves for strength and corrosion resistance. Mast exit blocks with cams used for halyard controls and under boom mainsheets. 

The 140 is designed for under-boom mainsheets or for spar-mounted halyards and control lines and pivots for a fair lead. The 141 is ideal for control lines.

Use for:
Traveler controls
Furling line leads
Flag halyards

Description Wire thru-deck**
Sheave dia. (in) 1/8
Length (in) 3
Weight (oz) 1.5
Max. line dia. (in) 5/16
Shackle pin dia. (in) -
Max. working load (lb) 400
Breaking load (lb) 2000
Cutout (in) 3/x 1 3/4
Hole spacing (in) 1/4

#10 (5mm) RH fasteners


Other Details