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Sigma Engineered Solutions 0.5-in Gray Metal Electrical Box Knockout Plug

Name: Sigma Engineered Solutions 0.5-in Gray Metal Electrical Box Knockout Plug
Brand: Sigma Engineered Solutions
SKU: 3343882
Price: 2.58 USD
Availability: InStock
Rating: 4.7 (31 reviews)

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4.7

Stepper number input field with increment and decrement buttons

Pickup

Unavailable

Shipping

Tue, Sep 8

21 available

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Shipping Details

General
Color/Finish Family	Gray	Package Quantity	1
Material	Metal

Dimensions
Diameter (Inches)	0.5	Fits Opening	0.5-in
Height (Inches)	0.3

Certifications
CA Residents: Prop 65 Warning(s)	Prop 65 Warning(S)

Warranty
Warranty	None

Miscellaneous
UNSPSC	39121300

Check out the Best Selling Electrical Box Knockout Plugs on Lowes.com

Review

4.7 out of 5

31 Reviews

1 Star

94% Recommend this product

Ratings may include incentivized customer reviews.

31 Customer Reviews

Sort By

They do the job.

Would Recommend

Perfect fit

ReviewGuyApril 16, 2026
Verified Purchaser

Was this Review Helpful ?

Its veryhandy having multiple sizes in the package

Would Recommend

It is a very well made product that worked great!!

MermieMarch 10, 2026
Verified Purchaser

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COMPARE PRODUCTS

		Name	Current Item Sigma Engineered Solutions0.5-in Gray Metal Electrical Box Knockout Plug
		Ratings	31
		Height (Inches)	0.3
		Warranty	None
		UNSPSC	39121300
Hubbell4 -Pack 0.5-in Gray Metal Electrical Box Knockout Plug	Sigma Engineered Solutions0.5-in Multiple colors/finishes Plastic Electrical Box Knockout Plug	Hubbell4 -Pack 0.75-in Gray Metal Electrical Box Knockout Plug	Hubbell-Raco 590 Switch Box Gangable 3-1/2 Deep Conduit Knockouts Ears	Anderson MetalsAMC 738109-12 3/4 Brass Square Head Plug	HalexSteel City Xc221-1 Knockout Box Connector 1/2 X 1/2 Die Cast Zinc	RACO Hubbell- 8293 1/2-Inch Deep 1/2-Inch Bottom Knockouts 4-Inch Round Ceiling Pan Gray
19	10	19
0.813	0.3	1.031	2	1	.5	.9
1-year limited	None	1-year limited	None	None	None	None
39121300	39121300	39121300	39121300	39121300	39121300	39121300