NPT Push-In Plugs | McMaster-Carr

	For OD For OD

	For Shape For Shape


Round	Rectangle

	For Pipe Size For Pipe Size

1/16
1/8
1/4
3/8
1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
3 1/2
4
5
6
8
10
12
14
16
18
20

	Cap Type Cap Type


Push On	Adhesive Back

Snap On

	Material Material

	For Thread Type For Thread Type

NPT

UN/UNF (SAE)

	Profile Profile


Tapered	Straight

	For Connection Type For Connection Type

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Color Color

	Red
	Black
	Blue

	Flexibility Flexibility

Flexible

Rigid

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Maximum Temperature Maximum Temperature

	For ID For ID

	Inside Height Inside Height

	For Surface Type For Surface Type

Unthreaded

Threaded

	Height Height

	For Thread Diameter For Thread Diameter

	Hardness Hardness

	Flange Diameter Flange Diameter

	Ring Diameter Ring Diameter

	Thread Size Thread Size

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201 Products

Caps

Tapered Caps

These flexible plastic caps are tapered to fit a variety of unthreaded and threaded objects.

High-Temperature Tapered Caps

Made of silicone, these caps withstand temperatures of 450° F for electroplating, paint-baking, and powder-coating applications. All of these flexible caps are tapered to fit a variety of unthreaded and threaded objects.

Metal Round Caps

More durable than plastic caps, these provide the most protection from abrasion and impact.

Squeeze Top Caps

Squeeze the dome top to remove these caps. They're commonly used as thread protectors.

Tear-Tab Caps

Push these caps onto pipe and fittings, then tear their tab to break the seal for easy removal.

Adhesive-Back Flange Caps

Stick these caps on the raised surfaces of flanges or other flat surfaces for extra protection during transport and storage.

Flange Caps

Snap these caps into flange bolt holes to safeguard pipe flanges during shipping, storing, and finishing applications. They all have a thick center pad to protect the flange opening and pipe threads from damage.

SAE Flange Caps

Protect SAE hydraulic flanges during shipping, storing, and finishing applications.

Plugs

Pull-Ring Tapered Plugs

Pull the two built-in rings to quickly remove these plugs. All are tapered to fit a range of hole diameters.

Hollow Tapered Plugs

The hollow construction allows these plugs to compress for a snug fit in threaded and unthreaded holes of varying diameters.

Hollow High-Temperature Tapered Plugs

The hollow construction allows these plugs to compress for a snug fit in threaded and unthreaded holes of varying diameters. Good for electroplating, paint baking, and powder-coating applications, they withstand temperatures up to 450° F.

Round Plugs

The hollow construction allows these plugs to compress for a snug fit in threaded and unthreaded holes.