Loading... Please wait...
  • Gift Certificates
  • My Account 

Currency Displayed in


Ronstan Upright Lead Block 20mm

Hover over image to zoom

  • Ronstan Upright Block - 20mm
RRP: $18.67
$16.80 (You save $1.87)

 Product Description

This upright lead block with a 20mm sheave 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 is suitable for use with rope or wire.


  • High static and dynamic load capacity
  • 316 Stainless Steel housing
  • Light weight
  • Cheek cutouts for easy bearing maintenence
  • Fastening: 2 x 6mm (1/4") - Not included
SKUSheave DiameterMax Rope DiameterMax Working LoadBreaking LoadWeight
RON-RF20171 20mm 6mm 250kg 550kg 18 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...


What's News


The Boat Warehouse

Unit 1, 16 Narabang Way
Belrose, NSW 2085
Ph. (02) 9450 2912

Connect with us

©2017 The Boat Warehouse | ABN 97 609 470 500 | All Rights Reserved | Sitemap | Privacy Policy

Click the button below to add the Ronstan Upright Lead Block 20mm to your wish list.