Metric, 2.5mm

Metric Fasteners, 2.5mm
Hex bolts Bolts with hexagonal heads and machine threads for use with a nut or in a tapped hole. Also known as hex cap screws or machine bolts.	Socket screws Screws with an Allen wrench drive.
Nuts Nuts have internal machine threads, for use with machine thread bolts and screws.	Studs, Rod & Stock A fully threaded rod with no head or drive. Commonly used in manufacturing, automotive, electrical, plumbing, and general construction applications.
Eye bolts & Screw eyes Bolts or screws with a circular ring on the head.