Talamex Flathead Flathead Flathead Screw M5 × 20 Phillips Cou | 4BoatsFlathead countersunk screw in M5 20 mm size with a Phillips cross recess, suitable for flush fixing in marine and general hardware applications. Size: M5 20 mm (0. 79 in) Head: Flathead countersunk for a flush finish Drive: Phillips (cross recess) Metric sizing for standard M5 threads Ideal for boat fittings, panel work and repairs Use with a standard Phillips screwdriver Simple, reliable fastener for precise, flush mounted fixings where a neat finish