Ronstan Screw-On Plastic Nylon Bush - Stainless Steel Lined - 7mm (9/32") ID x 5mm (3/16") Deep

The Ronstan Screw-On Plastic Nylon Bush with Stainless Steel Lined construction is an essential marine hardware component designed to manage, guide, and protect control lines in deck and rigging applications. This compact fairlead is ideal for sailors, boat builders, and marine technicians who need reliable line guidance without complex installation or high costs. Whether managing sheets, halyards, or control cables on sailboats, dinghies, or small craft, this nylon bush provides a simple, economical solution for correcting lead angles and preventing chafe on critical rigging systems.

Engineered with a nylon body and stainless steel internal lining, this fairlead combines lightweight durability with corrosion resistance—essential properties in saltwater environments. The 7mm (9/32") inside diameter accommodates standard control line sizes, while the 5mm (3/16") depth ensures compact installation in space-constrained deck areas. The screw-on design allows quick, tool-free mounting and removal, making it suitable for both permanent rigging and temporary line management applications. The nylon construction reduces noise and vibration during operation while the stainless steel liner protects against wear from continuous line movement.

This bush is best suited for cruising sailors, racing crews, and marine maintenance professionals who prioritize longevity and dependable performance. Installation requires only a compatible fastening point and takes seconds—simply screw onto your existing deck fitting or eye bolt. The compact 1-inch footprint makes it ideal for confined spaces where traditional fairleads prove too bulky. Users commonly deploy this hardware on cabin tops, booms, and mast-mounted applications where line deflection must remain smooth and friction-free. Compatible with standard 7mm control line, this Ronstan accessory delivers professional-grade fairlead functionality at practical price points.