Product Name : Hexagon Standoff Spacer;Thread Size : M3 Male Thread Length : 6mm/0.24 Inch ;Hex Part Length : 8mm/0.3 Inch Total Size : 14 x 5.5mm/0.55 Inch x 0.22 Inch (L*D);Material : Nylon Color : Black;Net Weight : 26g Screw threaded hexagon stand-off spacers of male to female type, with black nylon construction. 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. Package Contents:500 x Hexagon Standoff Spacers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.