Sliding Bolt Track

Sliding Bolt Track Positive, Mechanical Sail Positioning

The Lewmar Sliding Bolt Track is designed to deliver secure, mechanically locked positioning for sail-control systems where absolute reliability and repeatability are required. Favoured for applications where loads are high and trim positions must be held without reliance on friction, it provides confident, repeatable control in demanding sailing conditions. 

Sliding Bolt Locking System

At the core of the design is a spring-loaded sliding bolt mechanism that engages positively into the track’s machined openings. This allows the traveller or carriage to be locked firmly at defined positions along the track, ensuring sail settings are maintained even under heavy load or fluctuating conditions. The system enables rapid adjustment when required, followed by immediate, secure locking.

Marine-Grade Track Construction

Manufactured from high-strength, marine-grade aluminium, the Sliding Bolt Track is engineered to withstand sustained sailing loads and harsh offshore environments. Precision machining ensures accurate bolt engagement and consistent spacing, while corrosion-resistant finishes support long-term durability and smooth operation in saltwater conditions.

Stable, Low-Movement Performance

By relying on positive mechanical engagement rather than friction alone, the Sliding Bolt Track minimises unintended movement under load. This stability helps maintain sail shape and trim accuracy, reduces system wear, and enhances control confidence in heavy weather, offshore passages, or performance sailing scenarios.

Installation & Application

The Lewmar Sliding Bolt Track is well suited to mainsheet travellers and other sail-control applications where fixed, repeatable positions are essential. Compatible with Lewmar sliding bolt traveller systems, it integrates cleanly into new builds and professional refit projects, offering a robust, system-led solution backed by Lewmar’s proven expertise in high-load deck hardware.