Screws

These are the screws available in the XO and where they go. As per http://en.wikipedia.org/wiki/ISO_metric_screw_thread the number immediately after the M is the rough diameter, followed by the pitch after the first x. Two of our screws have a precise length in english units, but not metric units.

From left to right:

• (A) M2x.4 x 4mm - the common blackened ones. There are a lot of these - use anywhere a specific type of screw is not specified.
• (B) M2x.4 x 2mm - the short shiny ones. There are 4 of them. 2 of these hold the circuit board on, the other 2 go in the raised holes on either side of the board just above it - look for this symbol:
• (C) M2x.4 x 6mm - the long shiny ones. There are 2 of them. They hold down the hinge cover, one on each side.
• (D) M2.5x.45 x 0.5in - the antenna ear screws.

Not shown:

• fat M2x.4 x 0.3in - the screen screws. These are cushioned by 4 black rubber ring bumpers and hold the screen in place.
• M3x.45 x 5mm - There are 4 of them. These go on the hinge, attaching the bottom and top halves of the XO