The Factor 55 FlatLink Expert (FlatLink E) Closed Winch Shackle Mount is a premium winch-line upgrade designed to replace a traditional winch hook with a low-profile, closed-system shackle interface. When not in use, the FlatLink E folds neatly into the fairlead, improving approach angle and eliminating hook rattle. Machined from 6000-series billet aluminum and secured using a double-shear aerospace-grade titanium pin, the FlatLink E delivers exceptional strength while remaining compatible with steel or synthetic winch lines—with no rope splicing required. Integrated EPDM rubber guards protect alloy fairleads, cushion line stowage, and reduce noise. The large pear-shaped shackle mounting hole allows attachment to either the pin or bow end of common screw-pin shackles, soft shackles, and OEM recovery points. This flexibility makes the FlatLink E ideal for Closed System Winching, where all recovery hardware uses closed-link connections for maximum safety and control. ✔ Replaces traditional winch hook with a closed-system shackle mount✔ Folds flat into the fairlead for improved approach angle✔ Compatible with steel or synthetic winch lines✔ Designed for advanced closed-system recovery setups