Cap Plugs | McMaster-Carr

	Material Material

Stainless
Steel

	Type Type

Plug and
Socket Set

	For Shape For Shape


Round	Square

Rectangle	Hex

Angle	Corner

DIN Rail

	System of Measurement System of Measurement

	For OD For OD

0.053" to 0.12"

0.079" to 0.15"

0.111" to 0.177"

0.205" to 0.273"

0.235" to 0.302"

0.298" to 0.365"

0.327" to 0.394"

0.356" to 0.422"

0.385" to 0.451"

0.409" to 0.485"

0.468" to 0.545"

0.487" to 0.568"

0.518" to 0.605"

0.613" to 0.693"

21/32" to 1 3/8"

0.663" to 0.761"

0.687" to 0.785"

0.74" to 0.849"

0.753" to 0.868"

0.901" to 1.027"

0.933" to 1.083"

1 1/32" to 2 5/32"

1 1/16" to 1 1/8"

1.085" to 1.358"

1 1/8" to 1 3/16"

1.169" to 1.437"

1.173" to 1.298"

1 3/16" to 1 1/4"

1.249" to 1.402"

1 1/4" to 1 5/16"

1.282" to 1.445"

1 3/8" to 1 7/16"

1 7/16" to 2 15/16"

1.498" to 1.62"

1 1/2" to 1 9/16"

1.568" to 1.688"

1 5/8" to 1 11/16"

1 11/16" to 2 3/8"

1.688" to 1.818"

1.718" to 1.888"

1 3/4" to 1 13/16"

1.781" to 1.938"

1.837" to 2.013"

1 7/8" to 1 15/16"

1.953" to 2.085"

2.063" to 2.377"

2.074" to 2 1/4"

2 1/8" to 2 3/16"

2.235" to 2.401"

2 1/4" to 2 5/16"

2.333" to 2.54"

2 3/8" to 2 7/16"

2.395" to 2.688"

2 1/2" to 2 9/16"

2.579" to 2.728"

2 5/8" to 2 11/16"

2.656" to 2.926"

2.685" to 2.947"

2 3/4" to 2 13/16"

2.787" to 2.918"

2.912" to 3.175"

3 1/8" to 3 3/16"

3 1/4" to 3 5/16"

3 5/16" to 4 9/16"

3 1/2" to 3 9/16"

3 5/8" to 3 11/16"

4 3/4" to 4 13/16"

	For ID For ID

1 3/64"-1 11/64"

1 1/16"-1 3/16"

1 1/16"-1 21/64"

1 5/64"-1 13/64"

1 5/64"-1 7/32"

1 5/64"-1 21/64"

1 7/64"-1 19/64"

1 9/64"-1 13/32"

1 11/64"-1 19/64"

1 3/16"-1 7/16"

1 3/16"-1 29/64"

1 15/64"-1 27/64"

1 15/64"-1 17/32"

1 17/64"-1 31/64"

1 19/64"-1 27/64"

1 19/64"-1 1/2"

1 5/16"-1 39/64"

1 21/64"-1 35/64"

1 21/64"-1 9/16"

1 21/64"-1 19/32"

1 11/32"-1 1/2"

1 23/64"-1 9/16"

1 27/64"-1 35/64"

1 27/64"-1 11/16"

1 29/64"-1 5/8"

1 15/32"-1 5/8"

1 15/32"-1 3/4"

1 15/32"-1 49/64"

1 31/64"-1 3/4"

1 1/2"-1 37/64"

1 1/2"-1 11/16"

1 1/2"-1 51/64"

1 33/64"-1 23/32"

1 17/32"-1 45/64"

1 35/64"-1 43/64"

1 35/64"-1 3/4"

1 19/32"-1 3/4"

1 41/64"-1 61/64"

1 21/32"-1 15/16"

1 21/32"-1 31/32"

1 43/64"-1 13/16"

1 45/64"-1 29/32"

1 23/32"-1 7/8"

1 23/32"-1 59/64"

1 3/4"-1 13/16"

1 25/32"-2 5/64"

1 51/64"-1 59/64"

1 13/16"-2 1/64"

1 53/64"-2 1/32"

1 57/64"-2 3/16"

1 57/64"-2 13/64"

1 29/32"-2 9/64"

1 59/64"-2 3/64"

1 59/64"-2 5/32"

1 15/16"-2 5/32"

1 31/32"-2 15/32"

1 63/64"-2 15/32"

2 1/64"-2 13/32"

2 3/64"-2 11/64"

2 9/64"-2 33/64"

2 5/32"-2 7/16"

2 11/64"-2 19/64"

2 11/64"-2 15/32"

2 19/64"-2 21/32"

2 5/16"-2 21/32"

2 21/64"-2 5/8"

2 27/64"-2 35/64"

2 29/64"-2 1/2"

2 29/64"-2 15/16"

2 29/64"-2 61/64"

2 15/32"-2 57/64"

2 31/64"-2 7/8"

2 35/64"-2 43/64"

2 43/64"-2 13/16"

2 51/64"-2 59/64"

2 61/64"-3 17/32"

3 1/64"-3 17/32"

3 3/64"-3 7/16"

3 17/64"-4 1/32"

3 9/32"-4 3/64"

3 19/64"-3 15/16"

3 11/32"-3 15/16"

3 33/64"-4 63/64"

3 35/64"-4 15/16"

3 19/32"-4 7/8"

4 3/64"-4 15/16"

4 19/64"-5 9/64"

4 51/64"-5 47/64"

5 3/64"-6 1/16"

	Color Color

	Black
	Red
	White
	Blue
	Yellow
	Off-White
	Clear
	Orange
	Brown
	Gray
	Pink
	Green
	Dark Gray
	Beige
	Dark Blue
	Dark Brown
	Dark Green
	Dark Red
	Light Brown
	Light Gray
	Silver
	Almond
	Black/White
	Ivory
	Light Blue
	Purple
	Red/Yellow

	Pipe Size Pipe Size

1/16
1/8
1/4
3/8
1/2
5/8
3/4
1
1 1/4
1 1/2
2
2 1/2
3
3 1/2
4
5
6
8
10
12

	Thread Type Thread Type

Chicago Fire
Department

UN/UNF (SAE 45°)

UN/UNF (SAE Straight)

	Plug Type Plug Type


Push In	Snap In

Locking	Screw In

End	Pull Through

Expandable	Tamper Evident

Three Prong	Two Prong

	Shape Shape

Adjustable-
Angle Elbow

	Profile Profile


Straight	Tapered

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Drive Style Drive Style


External Hex	Hex

External Square	Slotted

External 12- Point	External Octagon

Square

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

RoHS Compliant with
Exemptions

	Cap Type Cap Type


Push On	Screw On

Stretchable	Snap On

Adhesive Back	Shrink Fit

Weld On

	Connection Type Connection Type

	Gender Gender

	For Pipe Size For Pipe Size

	For Use With For Use With

	Maximum Temperature Maximum Temperature

Less than 100° F

100° to 249° F

250° to 499° F

500° to 999° F

1,000° F or greater

	Connection Style Connection Style

Push to Connect

Quick Disconnect

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

REACH Compliant

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The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)