Model # 20511

Internet #100133208

Store SKU #839647

null 3/8 in. Non-Metallic (NM) Twin-Screw Cable Clamp Connectors (5-Pack)
0051411205119

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
$1.63 /bag

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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.

  • 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

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Customer Questions & Answers

3 Questions1 Answer

Customer Questions & Answers

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

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Can this clamp works for 6/3 Romex wire?

This question is from 3/8 in. Non-Metallic (NM) Twin-Screw Cable Clamp Connectors (5-Pack)
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Las vegas
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December 4, 2015
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Answer (1)

Asked by
Massachusetts
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Home Improvement Profile: Other
July 2, 2016
Answer: 
No, this is for 14/2, 14/3, 12/2, and 12/3 only. For 6/3, I would recommend AT LEAST 3/4" connectors.
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Is this for half inch knock outs?

This question is from 3/8 in. Non-Metallic (NM) Twin-Screw Cable Clamp Connectors (5-Pack)
Asked by
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August 1, 2016
3/8 is cable size correct? The KO size is 1/2 inch?

Can I pass two 14/3 romex cables through a single cable clamp?
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Does the Jar packed rough electrical hardware items help over contractor- carton packed item? How

This question is from 3/8 in. Non-Metallic (NM) Twin-Screw Cable Clamp Connectors (5-Pack)
Asked by
Atlanta
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May 19, 2016
Help me understand the benefits of jar packed items. Any suggestions for improvement? share your experience of the change moving from Carton to Jar.
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Customer Reviews

3/8 in. Non-Metallic (NM) Twin-Screw Cable Clamp Connectors (5-Pack) is rated 4.2 out of 5 by 9.
Rated 1 out of 5 by from why are USA made ones being replaced by ones made in India...is there such a price difference????? why are USA made ones being replaced by ones made in India...is there such a price difference?????
Date published: 2016-11-22
Rated 5 out of 5 by from Great Deal Bought these for a Home Improvement Project in mny basement.
Date published: 2016-09-27
Rated 4 out of 5 by from Good product at a decent price.. Much cheaper than Lowes. Good product at a decent price.. Much cheaper than Lowes.
Date published: 2016-12-20
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 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 5 out of 5 by from Excellent item Excellent item. Used for my recessed lighting. Will use again in the future.
Date published: 2016-02-10
Rated 5 out of 5 by from Works as advertised Good price. Does what it is supposed to do. Would buy again.
Date published: 2016-04-05
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
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