2.5mm x 0.45mm x 5mm, Metric, 18-8 (A-2)

Metric Fasteners

Metric machine screw

Machine screws

Screws with machine threads for use with a nut or in a tapped hole.
Socket product

Socket screws

Screws with an Allen wrench drive.
Set screw

Set screws

Screws with no head and machine threads for use in a tapped hole.