![Ronstan Nylatron Sheave Box - Single Upright Lead Block [RF453]](https://cdn11.bigcommerce.com/s-akrdq0rr06/images/stencil/1280x1280/products/27471/35500/55219XL__42170.1646182488.jpg?c=1 "Ronstan Nylatron Sheave Box - Single Upright Lead Block [RF453]")
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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.
Features:
The external tabs can be formed to fit the spar profile before fastening
Applications:
Typically used in dinghy spars for control lines such as outhauls
Materials:
- Nylatron® sheave
- Grade 316 stainless steel load housing
Specifications:
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)
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