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Small 16 mm Harken forkhead block with transparent sheave and stainless steel hardware

Harken

Harken 376 16mm Forkhead Block Boating Maintenance

SKU CH-P151-ZV7G6

16 mm forkhead block with a 250 lb working load for small synthetic control lines on dinghies

  • ColorTransparent
  • Smallest Harken block for tight dinghy rigs
  • Patented captive ball bearing for smooth trimming
  • 250 lb working load handles high loads
  • Weighs only 11 g to reduce aloft weight
  • Accepts line up to 5 mm for modern synthetics

Smallest Harken Block

The Harken 376 is a 16 mm forkhead block built for small synthetic control lines on high-tech dinghies. Its patented bearing system uses stainless steel balls in a captive grooved race to handle a maximum working load of 250 lb.

Compact Rigging Fit

At 29 mm long and 11 g the block adds minimal weight and length to a control-line system. It accepts line up to 5 mm and the forkhead attachment lets it connect directly to existing fittings without extra shackles.

Sustained Load Behaviour

The captive ball race keeps friction low through repeated trim adjustments rather than only on initial movement. A breaking load of 1200 lb provides a wide safety margin above the 250 lb working limit for prolonged use.

Highlights

  • Smallest Harken block for tight dinghy rigs
  • Patented captive ball bearing for smooth trimming
  • 250 lb working load handles high loads
  • Weighs only 11 g to reduce aloft weight
  • Accepts line up to 5 mm for modern synthetics

Specifications

ColorTransparent
BrandHARKEN

Questions about this item

How much load can the 16 mm sheave handle continuously before it reaches its limit?

The 16 mm sheave has a maximum working load of 113 kg or 250 lb, which is the sustained limit under normal use.

Does the stainless-steel ball bearing system generate noticeable heat or noise during all-day sailing?

The captive grooved race with stainless steel balls runs smoothly without generating significant heat or noise during extended use.

What line diameter must I already have for this block to work properly?

The block accepts a maximum line diameter of 5 mm or 7/32 in, so your control line must be that size or smaller.

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