RTC 3745 - Lokut Nut, No. 6 Size Land-Rover Series 3 £0.30 Quantity: at £0.30 each Out of Stock Out of stock. Lokut Nut, No. 6 Size Plastic Lokut nut that takes a No. 6 size self-tapping screw. Used in multiple locations on Series 3 models: Demister ducts into Top Crash Pad. Side Panels to Top Crash Pad. Rear of Auxiliary Instrument Cover to Parcel Shelf. Front Grille to Front Panel. Trim upright to Upper Auxiliary Panel.