Swing-Tab Desk Drawer Pull-Out Stop
A 70 x 20 x 6 mm tab that stops a drawer falling out. It screws to the inside of the drawer back with a pivot screw and a lock screw, and the tip rises above the back to catch the desk's front rail. To pull the drawer out, remove the lock screw and swing the tab down. It's a stand-in for lost stoppers like IKEA Rast part 102323. Both holes are 4.5 mm with countersinks, so they take #6 (3.5 mm) or #8 (4.2 mm) wood screws or M4 screws.
desk drawer-stop furniture-repair ikea-rast