Loading... Please wait...


Ronstan Upright Lead Block - High Load 50mm

Hover over image to zoom

  • Ronstan Upright Block - Series 50
RRP: $77.03
$73.18 (You save $3.85)

Own it now, Pay later.
From $10 a week. Learn more.

Shop now. Enjoy now. Pay Later.
4 interest-free payments of fortnightly. More info


 Product Description

This upright lead block from Ronstan is typically used for halyards at the mast base.

Lead blocks are a low-profile solution for leading halyards or other rig sail controls back to cleats or jammers.

Ideal for high load applications. Manufactured with a wear-resistant Nylatron® sheave - a lightweight self-lubricating polymer.

This upright block with 50mm sheave is suitable for use with rope or wire.


  • Acetal ball bearings
  • UV stabilised Acetal sheave
  • Grade 316 stainless steel load housing
  • Fastening: 2 x 6mm (1/4") - Not included
SKUSheave DiameterMax Rope DiameterMax Working LoadBreaking LoadWeight
RON-RF50171HL 50mm 12mm 800kg 1,500kg 115 grams

 Find Similar Products by Category

 Product Reviews

This product hasn't received any reviews yet. Be the first to review this product!

Ronstan Marine Hardware

Get Ronstan boat hardware, sailing equipment & accessories from The Boat Warehouse

Ronstan is a world-leading manufacturer of sailboat hardware, rigging components, sailing wear and accessories created through innovative thought and real-world testing. We offer a full range of yacht and dinghy sailing products including blocks, sheaves, travellers, furlers, rope cleats, stainless steel fittings, sheet and halyard winches and much more.

View Ronstan's products currently available online from The Boat Warehouse.

Contact The Boat Warehouse for information on the availability of other Ronstan products.

You Recently Viewed...


Quick Links

What's News


The Boat Warehouse is Australian Owned & Operated. We ship orders everywhere, including Adelaide, Brisbane, Canberra, Darwin, Melbourne, Perth, Sydney & internationally.

All product details and specifications provided in good faith. No responsibility taken for errors or omissions.

©2020 The Boat Warehouse | All Rights Reserved | Sitemap | Privacy Policy

Click the button below to add the Ronstan Upright Lead Block - High Load 50mm to your wish list.