Internet #100133208

Model #20511

Store SKU #839647

3/8 in. Non-Metallic (NM) Twin-Screw Cable Clamp Connectors (5-Pack)

  • Features a reversible locknut to preserve grounding
  • Twin screw
  • High-strength die-cast zinc alloy
  • See More Details
$185
/bag

Frequently Bought Together

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Price:
$185

Product Overview

Turn to the 3/8 in. Twin Screw Non-Metallic Cable Clamp Connectors (5-Pack) to join non-metallic sheathed cable and flexible cord to steel outlet boxes or other metal enclosures. A reversible locknut cuts through protective coatings on boxes and enclosures to preserve grounding. This connector meets UL and CSA requirements.
  • Connect non-metallic sheathed cable and flexible cord to steel outlet boxes or other metal enclosures
  • Body and locknut are die-cast of high-strength zinc alloy
  • Zinc-plated steel clamp and screws
  • Reversible locknut cuts through protective coatings on boxes and enclosures to assure ground continuity
  • Fits 1/2 in. knockout
  • For indoor use only
  • Screws compatible with Phillips, slotted and square screwdrivers
  • Resists corrosion
  • UL and CSA safety listings



Info & Guides

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Price
$177
$185
/bag
$217
$270
/bag
Ratings
(9)
(66)
(20)
(9)
Application typeNon-metallicNon-metallicEMTFlex
Fitting typeConnectorConnectorConnectorBushing
Trade Size (in.)13/81/23/8
MaterialGalvanized SteelGalvanized SteelGalvanized SteelNylon
Electrical Product TypeStandard FittingStandard FittingStandard FittingStandard Fitting
Product Weight (lb.)0.14220.23330.26670.001
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Specifications

Dimensions

Product Depth (in.)
1.18
Product Height (in.)
0.180
Product Width (in.)
0.64
Trade Size (in.)
3/8

Details

Application type
Non-metallic
Compatible conduit type
RNC
Electrical Product Type
Standard Fitting
Fitting type
Connector
Material
Galvanized Steel
Package Quantity
5
Paintable/Stainable
No
Product Weight (lb.)
0.2333
Returnable
180-Day

Warranty / Certifications

Certifications and Listings
CSA Listed,UL Listed
Manufacturer Warranty
None

Questions & Answers

15Questions44Answers

so it's a 3/8"clamp that fits a 1/2" knockout, but hole size is 7/8" ???? I bought a plastic junc...

Asked by bandit May 12, 2020
3
Answers

This connector is for MC cable. It only fits in metal boxes. the 7/8 size is the outer diameter of the hole and the half inch is the inner diameter of the connector.

Can I use this outside for an outdoor receptacle box?

Asked by jim March 24, 2020
5
Answers

No, outdoor applications require weatherproof conduit and connectors.

I recently purchased a Whirlpool Dishwasher from Home Depot and installed it myself rather than p...

Asked by Happynow January 13, 2020
5
Answers

Use a 3/4” non-metalic connector for mn cable. Fits hole size... 7:8”

How do you feed cable into the box if it is within a wall?

Asked by Hajj November 21, 2019
3
Answers

If the 2 clamp screws are on the outside of the box AND are tight, it will be tough. I'll answer another question about the screws inside shortly. If you're fishing a wall, you should use a tool, cord, &/or piece of stiff wire to help. A standard fish tape or rod might help. From bottom up maybe a clothes hanger might work. From top down, maybe a string with a small weight. Check out a grabber tool for acquiring the end of the pulling device. (A flexible tool +/- 24" with a push button on one end and 3 or 4 thin wire "hooks" that extend & spread out the other end.) You might need to attach your Romex to the opposite end of the pulling device & pull the wire in. You might need to attach the Romex to the pulling device inside the box & pull the needed legnth through the box to the source. If you're lucky, & hold your mouth just right (ha), you might feed the Romex through the wall to near the box, reach through with the grabber tool, & get the end of the Romex directly.

If this is made for 1/2" knockouts, why do they say 3/8"? Wasted 30 minutes trying to find 1/2" j...

Asked by Zac July 9, 2019
5
Answers

It's called "trade sizing" and it's annoying to say the least. 3/8 fitting is for 1/2 trade size knock out, actual diameter 7/8. Best bet is juts memorize it and don't think too hard.

Can I use this for 10/2 romex?

Asked by Mark May 4, 2019
6
Answers

Yes.

how many cables can you clamp in this device?

Asked by br February 19, 2019
5
Answers

Two

what size hole do you drill for 3/8" clamp connector??

Asked by sam February 8, 2019
7
Answers

1/2"

Can the Twin-screws go inside the box, so they are accessible when wallboard is up - NEC? If not,...

Asked by GoVegan July 27, 2018
3
Answers

the answer is no -- depending what area [state] it's probably against electric code -- you can use a box that has clamps built into box -- or -- use a plastic box that just has knockouts -- when using plastic make sure to tie that bare copper wire when splicing or use the green grounding screw on the socket you're installing --

Which connector is best for outside UF romex cable into a spa panel?

Asked by Billy November 16, 2017
2
Answers

Use this one...Internet #100170032...Model # 90661Store...SKU #293662 for 1/2" trade size hub. They are available in other trade sizes as well.

3/8 in. Non-Metallic (NM) Twin-Screw Cable Clamp Connectors (5-Pack) - page 2

Customer Reviews

  • 66 Customer Reviews
  • 4.7 out of 5 stars overall
91% of customers recommended.
Overall Ratings
5star-icon(52)
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Great clamp because they can be used for one wire or multiples due to the upper clamp having A bu...
Great clamp because they can be used for one wire or multiples due to the upper clamp having A bump. It is able to grip the wires without crushing them.
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this fit in the knock out hole great and was easy to tighten into place. It holds onto the wire v...
this fit in the knock out hole great and was easy to tighten into place. It holds onto the wire vary good as well. I got this for light fixtures I all ready have up and running.
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highly reflective coating looks pretty...
highly reflective coating looks pretty
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This is a pretty standard item--hard to mess up. They met expectations. I gave 5 stars because I ...
This is a pretty standard item--hard to mess up. They met expectations. I gave 5 stars because I understand a little about how ratings work. There were no flaws or problems. No need for them to be exceptional to be exactly right. Thanks
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Worked as expected and right price...
Worked as expected and right price
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Haven't used yet but know they will do a perfect...
Haven't used yet but know they will do a perfect job...
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The casting is fairly thin and can break if you're...
The casting is fairly thin and can break if you're rough with it. The screws are longer than necessary and may interfere with other surfaces, depending on how the connector is indexed. The nipple for the lock nut is pretty short.
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Essential when installing Romex into a knock out...
Essential when installing Romex into a knock out
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As expect...
As expect
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