Screw threaded hexagon stand-off spacers of male to female type, made of brass.
Threaded spacers are used to stack or mount printed circuit boards and machine boards.
A standoffs spacer is used to keep the motherboard above the case, prevents motherboard from shorting out and helps cooling.

Specification:
Product Name: Hexagon Standoff Spacer
Thread Size : M3
Pitch: 0.5mm
Male Thread Length : 6mm/0.24"
Hex Part Length : 6mm/0.24"
Total Size : 12 x 4.5mm/0.47" x 0.18"(L*D)
Material : Brass
Package Content : 88(+/-2%) x Hexagon Standoff Spacers