Ronstan Nylatron Sheave Box – Single Upright Lead Block

$29.95 $22.15

SKU: RON-RF453 Category:


Nylatron Sheave Box – Single Upright Lead Block

Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers.When mounted in an inverted position, are frequently used as upright leads.

The external tabs can be formed to fit the spar profile before fastening

Typically used in dinghy spars for control lines such as outhauls


  • Nylatron® sheave
  • Grade 316 stainless steel load housing

Sheave Ø: 22mm(7/8″)
Max. Rope Ø: 3mm(1/8″)
Max. Cable Ø: 3mm(1/8″)
Fastener Ø: 5mm(3/16″)
M.W.L.: 160kg(350lbs)
B. L.: 350kg(700lbs)
Weight: 30g(1.1oz)

Additional information

Weight 0.1 lbs


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