Pan head bolts (Machine screws), steel, bright zinc plated.  M6 (6mm) x 50mm long, pack of 25 nuts and 25 bolts = 50 items in total.  These are standard M6 metric thread (metric coarse) which has a 1.0mm thread pitch.  Overall length 53.6mm, length of the threaded part from the end to under the flat head 50mm, thread diameter 5.8mm, diameter of head 11.9mm.  The nuts measure 10mm between flats, so you need a 10mm spanner or socket.  Slotted for use with a plain slot screwdriver.
Pan head screws have the top edge of the head rounded over (cheese head screws are similar but they have a flat top with a right angle edge to it, and the head part is slightly thicker).

FREE POSTAGE UK!  UK seller, orders despatched from stock held in England.  A VAT invoice will be sent with every item we sell, folded up to form the address label.

We always despatch items quickly, but if you need it fast please consider the 1st class post or next working day courier (UK mainland only, except Scotland) delivery options, as 2nd class post can be very slow.  The estimated delivery times on the listing  are put on by E-bay, not by us and can be misleading, as they assume that all 2nd class mail arrives in 2 days, which is not true.