![Sigma ProConnex 3/8-in Die Cast Zinc Clamp-on Type Service Entrance Connector Conduit Fittings in the Conduit Fittings department at Lowes.com Sigma ProConnex 3/8-in Die Cast Zinc Clamp-on Type Service Entrance Connector Conduit Fittings in the Conduit Fittings department at Lowes.com](https://mobileimages.lowes.com/productimages/12e46754-edf1-40b0-84b6-dc98586589f4/62521808.jpg)
Sigma ProConnex 3/8-in Die Cast Zinc Clamp-on Type Service Entrance Connector Conduit Fittings in the Conduit Fittings department at Lowes.com
![Sigma ProConnex 3/4-in Die Cast Zinc Clamp-on Type Service Entrance Connector Conduit Fittings in the Conduit Fittings department at Lowes.com Sigma ProConnex 3/4-in Die Cast Zinc Clamp-on Type Service Entrance Connector Conduit Fittings in the Conduit Fittings department at Lowes.com](https://mobileimages.lowes.com/productimages/09ceb4d4-eaa5-4669-981f-53ca2ce4ca26/00551798.jpg)
Sigma ProConnex 3/4-in Die Cast Zinc Clamp-on Type Service Entrance Connector Conduit Fittings in the Conduit Fittings department at Lowes.com
![Curious as to if these metal boxes need a bushing for NM per code or if the clamp built into them is adequate enough. : r/askanelectrician Curious as to if these metal boxes need a bushing for NM per code or if the clamp built into them is adequate enough. : r/askanelectrician](https://preview.redd.it/curious-as-to-if-these-metal-boxes-need-a-bushing-for-nm-v0-l09n0rfhqnza1.jpg?width=640&crop=smart&auto=webp&s=b3a87db5b7af08e1facb6ad0abfa90a0fc7891bd)
Curious as to if these metal boxes need a bushing for NM per code or if the clamp built into them is adequate enough. : r/askanelectrician
![Raco Part # 218 - Raco 4 In. Square Box Welded 1-1/2 In. Deep With Ac/Mc/Flex Clamps Three 1/2 In. Ko's And One Tko, Ubs, Fs Bracket, Flush - Electrical Boxes - Home Depot Pro Raco Part # 218 - Raco 4 In. Square Box Welded 1-1/2 In. Deep With Ac/Mc/Flex Clamps Three 1/2 In. Ko's And One Tko, Ubs, Fs Bracket, Flush - Electrical Boxes - Home Depot Pro](https://content.interlinebrands.com/product/Image/Detail/10122/662108_usn.jpg)
Raco Part # 218 - Raco 4 In. Square Box Welded 1-1/2 In. Deep With Ac/Mc/Flex Clamps Three 1/2 In. Ko's And One Tko, Ubs, Fs Bracket, Flush - Electrical Boxes - Home Depot Pro
![Halex – 3/8 Inch – ½ Inch Knockout Non-Metallic Push In Connector – 75105B – 100 Per Pack – Gray - Conduit Fittings - Amazon.com Halex – 3/8 Inch – ½ Inch Knockout Non-Metallic Push In Connector – 75105B – 100 Per Pack – Gray - Conduit Fittings - Amazon.com](https://m.media-amazon.com/images/I/71z8ziqYwsL._AC_UF894,1000_QL80_.jpg)
Halex – 3/8 Inch – ½ Inch Knockout Non-Metallic Push In Connector – 75105B – 100 Per Pack – Gray - Conduit Fittings - Amazon.com
4" Octagon Box, 2-1/8" Deep - Drawn, W/Romex Clamps And Fixture Ears 3-1/2" O.C. | Garvin Industries
![How to Secure NM (Romex) Cable to a Metal Electrical Box | Metal electrical box, Bird houses, Electricity How to Secure NM (Romex) Cable to a Metal Electrical Box | Metal electrical box, Bird houses, Electricity](https://i.pinimg.com/474x/e8/42/55/e84255e737bac95d713a2fd72b3afb02.jpg)
How to Secure NM (Romex) Cable to a Metal Electrical Box | Metal electrical box, Bird houses, Electricity
![electrical - Is a grommet needed for romex into this metal junction box? - Home Improvement Stack Exchange electrical - Is a grommet needed for romex into this metal junction box? - Home Improvement Stack Exchange](https://i.stack.imgur.com/Psabs.jpg)