The 771Q2533KNI Mode® knurled WC thumb turn and release set is designed for bathroom and WC doors, providing a privacy turn without an indicator for standard applications. The knurled finish improves grip, while concealed fixings provide a clean installation on doors 32mm to 54mm thick, compatible with 5mm and 8mm followers. Manufactured from grade 316 stainless steel and has been incorporated in successful fire tests and assessed to BS EN 1634-1 fire resistance test standard and BS 476 Part 22 fire test standard up to 60 minutes, backed by a 25 year manufacturing warranty, and available in a range of Spectra decorative finishes.