Screw Grommets - Natural, Square Hole
Screw Grommets provide a quick, positive securing of panels or PCBs. As the self tapping screw is engaged, the bottom legs are forced outward eliminating the need for a nut. These go in a square hole that prevents rotation.
Screw Grommets - Sealed
These are panel joining grommet nuts. They have a seal to prevent moisture and material from entering. They are mounted into a square hole to prevent rotation. Available with both round and square heads.