Model # 20511

Internet #100133208

Store SKU #839647

Store SO SKU #1000518517

0051411205119

Halex

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
$ 1 82 /bag
store icon Loading Buying Options...
package icon Loading Buying Options...
Sorry, but we ran into issues loading these options. Please try refreshing.

Frequently Bought Together

Frequently Bought Together

+
+

Product Overview

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

Product Overview

  • Features a reversible locknut to preserve grounding
  • Twin screw
  • High-strength die-cast zinc alloy
Model #: 20511
Sku #: 839647
Internet #: 100133208

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

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Compare Similar

Compare Similar Products
Brand Halex RACO Halex
Name 3/8 in. Non-Metallic (NM) Twin-Screw Cable Clamp Connectors (5-Pack) 1/2 in. Non-Metallic Liquid-Tight Push-On Connector Non-Metallic 1/2 in. Sheathed Cable Connector (100-Pack) 3/8 in. Flexible Metal Conduit (FMC) Clamp Combination Connector (50-Pack)
Price
$1.82 /bag
$2.38
$18.33 /carton
$23.80
Ratings (18) (1) (7) (10)
Application type Non-metallic Liquid tight Non-metallic Flex
Fitting type Connector Connector Connector Connector
Trade Size (in.) 3/8 1/2 1/2 3/8
Material Galvanized Steel Plastic Zinc Galvanized Steel
View Product View Product View Product View Product

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.)
0.2333lb
Returnable
90-Day

Warranty / Certifications

Certifications and Listings
1-UL Listed,CSA Listed
Manufacturer Warranty
None

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.)
0.2333lb
Returnable
90-Day

Warranty / Certifications

Certifications and Listings
1-UL Listed,CSA Listed
Manufacturer Warranty
None

Questions & Answers

Can I use this for 10/2 romex?

Can I use this for 10/2 romex?
Asked by: Mark
Yes.
Answered by: ATXSparky
Date published: 2019-05-08

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

what size hole do you drill for 3/8" clamp connector??
Asked by: sam
5/8"
Answered by: Dphil
Date published: 2019-02-28

Can this be used for 2 cables?

Asked by: Peter
Yes, 2 14/2 or 12/2 lines. Recommend only two though, three is to tight.
Answered by: Silver
Date published: 2019-05-07

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

Can the Twin-screws go inside the box, so they are accessible when wallboard is up - NEC? If not, please reference which NEC reg's state otherwise. Thank you.
Asked by: GoVegan
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 --
Answered by: CHUBBYB
Date published: 2018-09-30
  • y_2019, m_5, d_21, h_22CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.12
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_10
  • loc_, sid_100133208, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=BEST_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=POSITIVE_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 59ms
  • QUESTIONS, PRODUCT

Customer Reviews

3/8 in. Non-Metallic (NM) Twin-Screw Cable Clamp Connectors (5-Pack) is rated 4.0 out of 5 by 18.
Rated 2 out of 5 by from Cheap quality, a couple of the lock rings were missing... Cheap quality, a couple of the lock rings were missing sections, so obviously wouldn’t tighten up.
Date published: 2019-04-17
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2019-04-10
Rated 5 out of 5 by from Excellent, easier to retrofit later These are excellent clamps. I'm in the process of retrofitting a house that has old metal boxes and 2 piece clamp connectors. The advantage with these is that you can loosen the wire from within the box, while 2 piece clamps can only be removed from outside... That means I have to destroy the box, the wire, or open the wall to get the clamps out. If these clamps were in the box, I could have removed the ring, extracted the box and save both the wire and box. I strongly recommend these to anyone using metal boxes. I would note the they have contractor 100 packs in store sometimes, but I haven't seen them online. Big cost savings in bulk as you can imagine. Otherwise this 5-pack is a better deal than individual at least.
Date published: 2013-11-26
Rated 5 out of 5 by from 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.
Date published: 2019-02-19
Rated 5 out of 5 by from Works as expected in securing Romex for an exterior electrical... Works as expected in securing Romex for an exterior electrical outlet box I was installing at our house.
Date published: 2018-12-18
Rated 5 out of 5 by from Excellent Clamps! These work great, for new work and for retrofitting. Attach easily to junction boxes and screw on tight. they keep romex cable very tight and secure. I would recommend anyone needing to run romex into junction boxes.
Date published: 2014-03-25
Rated 4 out of 5 by from One minor gripe Can't find much to complain about with these guys, except that occasionally the screws are long enough that when tightened they collide with something else nearby. I suppose they have to be as long as they are in case you want to clamp two cables in same knockout. Perhaps they should be sold in two flavors - one with long screws and one with shorter screws.
Date published: 2016-04-26
Rated 3 out of 5 by from The product is basic and works fine. However, buyer beware. I purchased a pack and one connecto... The product is basic and works fine. However, buyer beware. I purchased a pack and one connector was missing a lock-nut. So not so good when I didn't have enough connectors for my job.
Date published: 2018-01-30
  • y_2019, m_5, d_21, h_22
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_18
  • loc_, sid_100133208, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 80ms
  • REVIEWS, PRODUCT