I'm adding two 20A circuits with one duplex receptacle each in a 2 gang box. I'm using an old work metal box, and 12/2 MC cable. It is my first time using MC cable, and I just wanted to know if the clamping looks OK. I had to use MC because part of the cable is going through a closet. I did use the red anti-short bushings. The metal boxes came with integrated MC clamps. This receptacle will be used to plug space heaters in, so I want to make sure it is done well. I used commercial grade 20A receptacles (space heaters are designed for 15A circuits). I used my torque screwdriver set to 14 in.lbs.

Do you see any issues with this install?

Clamp for old metal work box Box with clamps and MC MC clamp closeup Second MC clamp closeup Box wired up with outlets Detailed view of outlet wiring Another detailed view of outlet wiring Torque screwdriver

  • 1
    Doubleplusgood! You could make valuable instructional materials with shots like that.
    – kreemoweet
    Commented Dec 16, 2023 at 3:20
  • 1
    You have excellent photos.
    – Huesmann
    Commented Dec 16, 2023 at 14:50

1 Answer 1


I would hire you for my company! Everything looks done very well. The only suggestion I have is to wrap the terminals with electrical tape, which is common practice when using metal boxes. Very nice job!

  • Thanks for the review and suggestion to wrap with electrical tape. I was planning to use an Ideal Armourband to insulate the terminals. I have done it with tape, but it tends to be a bit messy if you have to remove it in the future. I was glad to see the Leviton outlets had one of the side screws tightened out of the box, and one open for wiring. I worry about loose screws touching metal boxes. Commented Dec 16, 2023 at 14:16

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