Ronstan 25 mm Wire Block Nylatron® Sheave Tube Rivet

Ronstan 25 mm Wire Block Nylatron® Sheave Tube Rivet

22 in stock

The Nylatron® Sheave Wire Block with Tube Rivet is a compact component designed for permanent installation in confined spaces. Its self-lubricating Nylatron® sheave reduces friction and steel-wire wear while eliminating metal-sheave corrosion. The tube-rivet mounting system allows direct installation through masts or booms and acts as the structural axle. It is the ideal solution for internal systems requiring minimum weight, durability, and a snag-resistant low profile.

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At Saildeck Gear, we specialize in technical rigging, blocks, winches, and deck hardware for boats between 30 and 60 feet. We know that every boat is different: working loads, mast dimensions, the type of maneuver, and how you use your boat—cruising, racing, or charter—all affect what you actually need.

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Tell us which product you’re interested in and which boat you’ll be installing it on, and we’ll prepare a quote tailored to your setup, including technical advice and with no obligation.

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