StarTech Replacement PC Mounting Metal Jack Screw Standoff - 15 Pack 15SCREWNUTM M3 tapped standoff with #6-32 threaded screw for easy conversion from a #6-32 tapped motherboard tray Replacement PC Mounting #6-32 to M3 Metal Jack Screw Standoff 15 Pack A convenient and cost-effective solution for mounting any motherboard to your pre-tapped PC chassis, this pack of 15 jackscrews are handy for new computer system builds or upgrades.