Wiring

Snug Up a Recessed Outlet With a Spacer Nut on the Mounting Screw

When an outlet sits too deep in its box to seat flush, threading a nut onto each mounting screw as a spacer pushes the strap forward so the outlet stops wobbling.

receptacle sits too deep, outlet sunk into the wall, plug wiggles in the socket, outlet shims

beginner Tools: screwdriver, voltage tester Added Jul 1, 2026
Watch the instagram video by @biewer_remodeling_ (opens in new tab)

The Problem

When an outlet box sits recessed too far behind thick drywall, a tile backsplash, or built-up layers of old paint, the mounting strap can't reach flush with the wall. The outlet ends up floating loose inside the box — it rocks and wobbles every time you plug something in or pull a cord out, and that constant movement works the wire connections loose at the screw terminals over time.

The Technique

  1. Shut off the breaker feeding the outlet and confirm it's dead with a voltage tester before touching anything.
  2. Remove the cover plate and pull the outlet out of the box.
  3. Thread a nut onto each mounting screw before driving it back into the box's screw ears — one nut per screw, sized to match the screw's threads.
  4. Position each nut so it sits between the outlet strap and the box, acting as a spacer.
  5. Drive the screws back in. As they tighten, the nuts take up the extra depth and push the strap forward until it seats flush against the wall instead of hanging loose inside the box.
  6. Reinstall the cover plate. The outlet should now sit solid with no play when you plug something in or pull something out.
Pro tip: Stack more than one nut per screw if a single nut doesn't close the gap — you're building up spacer thickness until the strap meets the wall.
Safety note: Always kill the breaker and verify the outlet is dead with a voltage tester before removing it — don't rely on the switch label alone.
Watch the instagram video by @biewer_remodeling_ (opens in new tab)

Electrical, plumbing, and structural work may be regulated where you live — check local code before you start, and note that a permit may be required. More in our disclaimer.

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