Internet #

100133208

Model #

20511

Store SKU #

839647

Halex

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

Name: 3/8 in. Non-Metallic (NM) Twin-Screw Cable Clamp Connectors (5-Pack)
Brand: Halex
SKU: 839647
Price: 2.98 USD
Availability: InStock
Rating: 4.5985 (396 reviews)

(396)Questions & Answers (43)

Includes 5 units (60¢ /unit)

$2.98 /bag

Features a reversible locknut to preserve grounding
Twin screw
High-strength die-cast zinc alloy
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Store

0 in stock

Product Details

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

Return Policy

Additional Resources

From the Manufacturer

Questions & Answers

Q:I have a plastic junction box with 1/2" knockouts. Can I use these on a plastic box, or do I have to use plastic push-in connectors?

by|Mar 26, 2023

0 Answer

Answer This Question

Q:Why not list the number of cables and sizes that can enter through one connector rather making the people in the field guess?

by|Mar 9, 2023

1 Answer

Answer This Question

A: to avoid violating cable fill specs (to avoid overheating) in boxes and connectors we refer to our NEC code books in our toolbox or van.

by|Mar 19, 2023

1 found this answer helpful

Q:My inspector wants proof of how many 12-2 romexs and how many 12-3 romexs these connectors are rated for. How do I get that info to him?

by|Feb 17, 2023

2 Answers

Answer This Question

A: I’m not to sure, I believe they changed the code on those, but I run 3 of each never more. To this day I’ve never been called out on it. But remember your boxes can only support some many wires, that code as also been change.

by|Feb 21, 2023

A: It?s right on the package in the fine print. For example, one connector can hold (3) 14/2. That?s up to three 14/2 Romex cables. It can handle only one 8/3 Romex NM cable where it says (1) 8/3-14/2 Romex.

by|Mar 13, 2023

Q:Is the Halex 3/8 non-metallic 2 screw connector UL listed for 2 14-2 romex cables? Could you email me the spec sheet showing this fact.

by|Feb 7, 2023

3 Answers

Answer This Question

A: I cannot supply you with an official UL listing. Just want to say that I used thousands of identical ones as an electrical contractor in Phoenix, AZ for romex house wiring,all inspected and approved by somewhat picky inspectors. This was a few years ago. Using two 14/2 w/grd romexes in these box connectors always passed. Just use common sense and hope your inspector is familiar with that fading concept. I wish you well on your project.

by|Feb 10, 2023

A: 2 #14/2 AWG

by|Feb 9, 2023

A: You can use 2 #12 romex as well per NEC

by|Mar 20, 2023

Customer Reviews

4.6 out of 5

(396)

4.6
out of 396 reviews
85%recommend this product

307

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Showing 1-10 of 396 reviews

Nov 29, 2022

No any issue. Installed easily.

Doing what is should do

Verified Purchase

Recommended

May 12, 2020

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.

Verified Purchase

Recommended

2 found this review helpful

Feb 19, 2019

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.

DIY
Verified Purchase

Recommended

5 found this review helpful

Jun 3, 2017

I just bought a bag of 5 of these at my local Home Depot. Part# 20512. I am doing an electrical p...

I just bought a bag of 5 of these at my local Home Depot. Part# 20512. I am doing an electrical project and the knockout on the junction box is 3/4". These connectors are actually 7/8" and do not fit. The bag says 3/4", but don't fall for it!

23 found this review helpful

Mar 24, 2023

Verified Purchase

Mar 23, 2023

Verified Purchase

Mar 23, 2023

Cable clamp for a junction box.

Thank you for including the locknut with this product!

Verified Purchase

Recommended

Mar 22, 2023

Verified Purchase

Mar 22, 2023

Verified Purchase

Mar 22, 2023

It is much better than the plastic one...

It is much better than the plastic one

Verified Purchase

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