Name: Sigma ProConnex NM/SE Fittings 3/8-in Die cast zinc Clamp-on type service entrance Connector 10 -Pack
Brand: Sigma ProConnex
SKU: 3152587
Price: 5.68 USD
Availability: InStock
Rating: 4.7 (1292 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
Includes 10 pieces per bag

General
Type	Connector	Sub Type	Clamp-on type service entrance
Use Location	Indoor/Outdoor	Package Quantity	10
Material	Die cast zinc	Series Name	NM/SE Fittings
Package Contents	10 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

4.7 out of 5

1292 Reviews

96% Recommend this product

Ratings may include incentivized customer reviews.

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+ 10

What Customers Are Saying

Customers overwhelmingly praise this electrical clamp for reliable performance and ease of use. Most highlight that it effectively secures Romex and wires in junction and breaker boxes without issue, with many noting installation takes minutes and requires no special tools. Reviewers consistently commend the solid construction, sturdy materials, and affordable pricing, with numerous customers stating they would purchase again. A few mention that knockout sizes occasionally differ from labels, and some note screws may be too long for certain applications, but these minor issues barely register against the strong positive consensus.

Customer review summary generated by AI, including incentivized reviews.

1292 Customer Reviews

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Good Value

Would Recommend

Good quality and good value.

Oregon RafterOctober 11, 2026
From NM_SLASH_SE Fittings 3_SLASH_4-in Die cast zinc Clamp-on type service entrance Connector Verified Purchaser

Was this Review Helpful ?

Worked well.😊

RichOctober 11, 2026
From NM_SLASH_SE Fittings 3_SLASH_8-in Die cast zinc Clamp-on type service entrance Connector Verified Purchaser

Was this Review Helpful ?

OakyDoaky

Would Recommend

Worked as expected

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

Was this Review Helpful ?

Does its job

Would Recommend

Does its job. Easy enough to put in, needed it to land a 6/3 romex wire into panel. Held well

JeeseOctober 9, 2026
From NM_SLASH_SE Fittings 3_SLASH_4-in Die cast zinc Clamp-on type service entrance Connector 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 10 -Pack
		Ratings	1287
		Height (Inches)	0.36
		Width (Inches)	1.16
		Type	Connector
Sigma ProConnexEMT Fittings 3/4-in Electrical (EMT) / Zinc-plated steel Set screw Connector 5 -Pack	Sigma ProConnexNM/SE Fittings 3/8-in Plastic Snap-in Connector 10 -Pack	Sigma ProConnexNM/SE Fittings 3/8-in Plastic Snap-in Connector 100 -Pack	Sigma ProConnexFlex Fittings 3/8-in Flexible / Steel One-hole Strap 100 -Pack	Sigma ProConnexFlex Fittings 3/8-in Flexible / Die cast zinc Combination Connector 5 -Pack	Sigma ProConnexFlex Fittings 3/8-in Flexible / Die cast zinc AC/MC Connector 10 -Pack	Sigma ProConnexNM/SE Fittings 3/8-in Die cast zinc Snap-in Connector 10 -Pack	Sigma ProConnexNM/SE Fittings 2-in Die cast zinc Clamp-on type service entrance Connector	Sigma ProConnexNM/SE Fittings 1-1/2-in Die cast zinc Clamp-on type service entrance Connector
90	394	404	169	140	49	231	77	83
0.56	0.438	0.438	0.5	0.74	1.5	0.75	0.72	2.5
0.41	1	1	0.5	0.36	1.125	1.125	1.57	3
Connector	Connector	Connector	Strap	Connector	Connector	Connector	Connector	Connector