The 650 Piece ForgeFix Multi-purpose Screw Organiser contains a selection of single thread, multi-purpose screws which have a zinc yellow passivated finish. Contains the following sizes:4.0 x 30mm (x160)4.0 x 40mm (x110)4.0 x 50mm (x90)5.0 x 50mm (x130)5.0 x 70mm (x100)5.0 x 100mm (x60)