Name: Sigma ProConnex NM/SE Fittings 3/8-in Die cast zinc Clamp-on type service entrance Connector
Brand: Sigma ProConnex
SKU: 1087255
Price: 0.88 USD
Availability: InStock
Rating: 4.8 (1351 reviews)

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Shipping Details

The Sigma ProConnex Clamp Type Cable Connectors are used to terminate NM Cable or Flexible Cord to a 1/2-in knockout in a dry location box or enclosure. These die-cast zinc connectors feature a reversible locknut to preserve grounding.

3/8-in trade size terminates NM Cable or Flexible Cord to a 1/2-in knockout
For one 14/2 - 10/3 NM Cable
For two 14/2, 12/2, 12/3, or 10/2 NM Cables
For three 14/2 NM Cables
For .29 - .45-in (diameter) Flexible Cord
Features a reversible locknut to preserve grounding
Zinc die-cast construction and (2) tri-combo screws included
Product is UL and CSA listed

General
Type	Connector	Sub Type	Clamp-on type service entrance
Use Location	Indoor/Outdoor	Package Quantity	1
Material	Die cast zinc	Series Name	NM/SE Fittings
Package Contents	1 per bag

Dimensions
Height (Inches)	0.36	Length (Inches)	0.74
Trade Size in Inches	3/8-in	Width (Inches)	1.16

Features
Corrosion Resistant	Yes	Weatherproof	No
Fire Resistant	No	Rust Resistant	Yes
Weather Resistant	No

Compatibility
Schedule 80 PVC Compatible	No	Flexible Metal Conduit Compatible	No
Schedule 40 PVC Compatible	No	Rigid Metal Conduit Compatible	No
Intermediate Metal Conduit Compatible	No	Galvanized Rigid Conduit Compatible	No
Electrical Metal Tubing Compatible	No	Liquid-tight Conduit Compatible	No

Certifications
CA Residents: Prop 65 Warning(s)	Prop 65 Warning(S)	Safety Listing	UL safety listing

Warranty
Warranty	None

Miscellaneous
UNSPSC	39131700

Check out the Best Selling Conduit Fittings on Lowes.com

Review

4.8 out of 5

1351 Reviews

96% Recommend this product

Ratings may include incentivized customer reviews.

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+ 10

What Customers Are Saying

Customers overwhelmingly praise this product for reliably securing electrical wires, with most noting it holds Romex firmly in junction boxes and breaker panels. Installation is consistently described as quick and straightforward, taking minutes with no complications. The zinc die-cast construction earns repeated praise for durability and strength, with reviewers calling it sturdy and better than plastic alternatives. Many appreciate the solid quality at an affordable price point. A few mention minor sizing discrepancies with knockouts, but the vast majority find it performs exactly as expected for standard electrical applications.

Customer review summary generated by AI, including incentivized reviews.

1351 Customer Reviews

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Would Recommend

MR AWESOMESeptember 27, 2026
From NM_SLASH_SE Fittings 3_SLASH_8-in Die cast zinc Clamp-on type service entrance Connector 10 -Pack Verified Purchaser

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/df0c725d-93a2-54d5-ad2f-ff9e85fa3c4c

Was this Review Helpful ?

a gripping item

Would Recommend

did what it was designed to do....hold my wire

BuckSeptember 27, 2026
From NM_SLASH_SE Fittings 3_SLASH_8-in Die cast zinc Clamp-on type service entrance Connector 10 -Pack Verified Purchaser

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COMPARE PRODUCTS

		Name	Current Item Sigma ProConnexNM/SE Fittings 3/8-in Die cast zinc Clamp-on type service entrance Connector
		Ratings	1351
		Type	Connector
		Material	Die cast zinc
		Trade Size in Inches	3/8-in
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920	915	214	739	24	129	88	179	38
Elbow	Elbow	Connector	Locknut	Connector	Connector	Connector	Strap	Connector
PVC	PVC	PVC	Zinc-plated steel	Zinc-plated steel	Die cast zinc	Zinc-plated steel	Steel	Plastic
3/4-in	1/2-in	1/2-in	2-in	3/8-in	1/2-in	1/2-in	3/8-in	3/8-in