McMaster-Carr

Search Results

	Color Color

	Clear
	Semi-Clear

	Plug Type Plug Type


Locking	Push In

Pull Through	Screw In

Expandable

	For ID For ID

0.025"-0.08"

3/64"-7/64"

17/64"-27/64"

21/64"-31/64"

23/64"-29/64"

27/64"-37/64"

29/64"-37/64"

29/64"-43/64"

1/2"

35/64"-41/64"

39/64"-23/32"

5/8"

41/64"-25/32"

43/64"-23/32"

23/32"-15/16"

3/4"

49/64"-29/32"

51/64"-31/32"

51/64"-1"

51/64"-1 1/64"

7/8"

29/32"-1 1/16"

59/64"-1"

59/64"-1 3/64"

61/64"-1 5/64"

61/64"-1 3/32"

1 1/32"-1 1/4"

1 5/64"-1 7/32"

1 5/64"-1 21/64"

1 9/64"-1 13/32"

1 3/16"-1 29/64"

1 15/64"-1 17/32"

1 5/16"-1 39/64"

1 21/64"-1 9/16"

1 21/64"-1 19/32"

1 27/64"-1 11/16"

1 15/32"-1 49/64"

1 1/2"-1 51/64"

1 17/32"-1 45/64"

1 41/64"-1 61/64"

1 21/32"-1 15/16"

1 21/32"-1 31/32"

1 23/32"-1 59/64"

1 25/32"-2 5/64"

1 57/64"-2 13/64"

1 63/64"-2 15/32"

2 9/64"-2 33/64"

2 19/64"-2 21/32"

2 29/64"-2 61/64"

2 61/64"-3 17/32"

3 9/32"-4 3/64"

3 35/64"-5"

	Material Material

Plastic

Rubber

	For Shape For Shape

	Round
	Rectangle
	Square

	For OD For OD

1 1/2" to 5"

1 1/2" to 8"

2 1/4" to 11"

2 7/8" to 16"

3 5/8" to 17"

4 3/8" to 24"

	Profile Profile


Tapered	Straight

	Hardness Hardness

	Head Diameter Head Diameter

	For Surface Type For Surface Type

Unthreaded

Threaded

	Cap Type Cap Type


Push On	Stretchable

	Height Height

	Trade Size Trade Size

00
0
1
2
3
4
5
5 1/2
6
6 1/2
7
7 1/2
8
8 1/2
9
9 1/2
10
10 1/2
11
11 1/2
12
13
13 1/2
14
15
16

	For Maximum Panel Thickness For Maximum Panel Thickness

0.062"

0.125"

	Maximum Temperature Maximum Temperature

	Overall Height Overall Height

	For Thread Diameter For Thread Diameter

	For Connection Type For Connection Type

Straight-Thread Pipe

Tapered-Thread Pipe

	Inside Height Inside Height

	Specifications Met Specifications Met

FDA

USP

	Flexibility Flexibility

Flexible

Rigid

	For Use With For Use With

Beverage

Food

	Flange Diameter Flange Diameter

13/32"

11/16"

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82 Products

Clear Locking Panel Plugs

These plugs are see-through to provide visibility and light transmission. They have wings that expand against the sides of the hole to lock them in place.

For technical drawings and 3-D models, click on a part number.

		Head
For ID	For Panel Thickness	Dia.	Ht.	Overall Ht.	Max. Temp., °F	Color	Pkg. Qty.		Pkg.
Polycarbonate Plastic
3/16"	0.016"-0.062"	1/4"	0.062"	0.234"	230°	Clear	10	0000000	00000
1/4"	0.016"-0.062"	5/16"	0.062"	0.312"	230°	Clear	10	0000000	0000
5/16"	0.016"-0.062"	3/8"	0.062"	0.312"	230°	Clear	10	0000000	0000
3/8"	0.016"-0.125"	1/2"	0.062"	0.406"	230°	Clear	10	0000000	0000
7/16"	0.016"-0.125"	9/16"	0.062"	0.406"	230°	Clear	10	0000000	0000
1/2"	0.016"-0.125"	9/16"	0.062"	0.406"	230°	Clear	10	0000000	0000
5/8"	0.016"-0.125"	3/4"	0.062"	0.406"	230°	Clear	10	0000000	0000
3/4"	0.016"-0.125"	7/8"	0.062"	0.406"	230°	Clear	10	0000000	0000
7/8"	0.016"-0.125"	15/16"	0.062"	0.453"	230°	Clear	10	0000000	0000
2"	0.016"-0.125"	2 3/16"	0.062"	0.453"	230°	Clear	5	0000000	00000

High-Temperature Tapered Plugs

Good for electroplating, paint baking, and powder-coating applications, these plugs withstand temperatures up to 570° F for 20 minutes. All are tapered to fit a range of hole diameters.

For technical drawings and 3-D models, click on a part number.

Silicone Rubber
For ID	Ht.	Max. Temp., °F	Hardness	Color	Pkg. Qty.		Pkg.
3/64"-7/64"	5/8"	570°	Durometer 55A	Clear	50	0000000	00000
17/64"-27/64"	1"	570°	Durometer 50A	Clear	25	0000000	00000
21/64"-31/64"	13/16"	570°	Durometer 55A	Clear	10	0000000	0000
23/64"-29/64"	13/16"	570°	Durometer 55A	Clear	25	0000000	00000
27/64"-37/64"	1"	570°	Durometer 50A	Clear	25	0000000	00000
29/64"-43/64"	1"	570°	Durometer 50A	Clear	10	0000000	00000
51/64"-1"	1"	570°	Durometer 55A	Clear	5	0000000	0000
59/64"-1 3/64"	1"	570°	Durometer 40A	Clear	5	0000000	00000
61/64"-1 5/64"	1"	570°	Durometer 55A	Clear	5	00000000	00000
1 21/64"-1 19/32"	1"	570°	Durometer 55A	Clear	1	0000000	0000
1 41/64"-1 61/64"	1"	570°	Durometer 55A	Clear	1	0000000	0000
1 21/32"-1 15/16"	1"	570°	Durometer 50A	Clear	1	0000000	00000

Expandable High-Temperature Tapered Plugs

Place a plug into an opening and tighten the wing nut—the sides expand to create a seal in holes of varying diameters. Good for paint baking and powder-coating applications, these plugs withstand temperatures up to 450° F.

For technical drawings and 3-D models, click on a part number.

Silicone Rubber
Trade Size	For ID	Ht.	Nut Material	Max. Temp., °F	Hardness	Color		Each
2	41/64"-25/32"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	00000
3	23/32"-15/16"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	0000
4	51/64"-1 1/64"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	0000
5	29/32"-1 1/16"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	0000
5 1/2	61/64"-1 3/32"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	0000
6	1 1/32"-1 1/4"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	0000
6 1/2	1 5/64"-1 21/64"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	0000
7	1 3/16"-1 29/64"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	0000
7 1/2	1 15/64"-1 17/32"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	00000
8	1 5/16"-1 39/64"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	00000
8 1/2	1 27/64"-1 11/16"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	00000
9	1 15/32"-1 49/64"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	00000
9 1/2	1 1/2"-1 51/64"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	00000
10	1 21/32"-1 31/32"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	00000
10 1/2	1 25/32"-2 5/64"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	00000
11	1 57/64"-2 13/64"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	00000
11 1/2	1 63/64"-2 15/32"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	00000
12	2 9/64"-2 33/64"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	00000
13	2 19/64"-2 21/32"	1"	Stainless Steel	450°	Durometer 55A	Clear	0000000	00000
13 1/2	2 29/64"-2 61/64"	1 3/8"	Stainless Steel	450°	Durometer 55A	Clear	0000000	00000
14	2 61/64"-3 17/32"	1 17/32"	Stainless Steel	450°	Durometer 55A	Clear	0000000	00000
15	3 9/32"-4 3/64"	1 17/32"	Stainless Steel	450°	Durometer 55A	Clear	0000000	00000
16	3 35/64"-5"	1 31/32"	Stainless Steel	450°	Durometer 55A	Clear	0000000	000000

Food-Grade Tapered Plugs

Made of FDA listed materials, these plugs are suitable for food contact. They're also USP (United States Pharmacopeia) Class VI tested to certify there are no harmful reactions or long-term bodily effects caused by chemicals that leach out of materials. All of these plugs are tapered to fit a range of hole diameters.

For technical drawings and 3-D models, click on a part number.

Silicone Rubber
Trade Size	For ID	Ht.	Max. Temp., °F	Hardness	Color	For Use With	Specifications Met		Each
00	29/64"-37/64"	1"	400°	Durometer 45A	Semi-Clear	Beverage, Food	Made of FDA Listed Materials, USP Class VI	00000000	00000
0	35/64"-41/64"	1"	400°	Durometer 45A	Semi-Clear	Beverage, Food	Made of FDA Listed Materials, USP Class VI	00000000	0000
1	39/64"-23/32"	1"	400°	Durometer 45A	Semi-Clear	Beverage, Food	Made of FDA Listed Materials, USP Class VI	00000000	0000
2	43/64"-23/32"	1"	400°	Durometer 45A	Semi-Clear	Beverage, Food	Made of FDA Listed Materials, USP Class VI	00000000	0000
3	49/64"-29/32"	1"	400°	Durometer 45A	Semi-Clear	Beverage, Food	Made of FDA Listed Materials, USP Class VI	00000000	0000
4	51/64"-31/32"	1"	400°	Durometer 45A	Semi-Clear	Beverage, Food	Made of FDA Listed Materials, USP Class VI	00000000	0000
5	59/64"-1"	1"	400°	Durometer 45A	Semi-Clear	Beverage, Food	Made of FDA Listed Materials, USP Class VI	00000000	0000
6	1 5/64"-1 7/32"	1"	400°	Durometer 45A	Semi-Clear	Beverage, Food	Made of FDA Listed Materials, USP Class VI	00000000	00000
7	1 9/64"-1 13/32"	1"	400°	Durometer 45A	Semi-Clear	Beverage, Food	Made of FDA Listed Materials, USP Class VI	00000000	00000
8	1 21/64"-1 9/16"	1"	400°	Durometer 45A	Semi-Clear	Beverage, Food	Made of FDA Listed Materials, USP Class VI	00000000	00000
9	1 17/32"-1 45/64"	1"	400°	Durometer 45A	Semi-Clear	Beverage, Food	Made of FDA Listed Materials, USP Class VI	00000000	00000
10	1 23/32"-1 59/64"	1"	400°	Durometer 45A	Semi-Clear	Beverage, Food	Made of FDA Listed Materials, USP Class VI	00000000	00000

High-Temperature Pull-Through Round Plugs

Good for electroplating, paint baking, and powder-coating applications, these plugs withstand temperatures up to 600° F for 15 minutes. To form a tight seal, use the smaller end of the plug to pull the larger end into a through hole.

For technical drawings and 3-D models, click on a part number.

Silicone Rubber
For ID	Ht.	Tab Ht.	Max. Temp., °F	Hardness	Color	Pkg. Qty.		Pkg.
1/16"	3/8"	11/32"	600°	Durometer 55A	Clear	50	000000	00000
3/16"	1"	1"	600°	Durometer 55A	Clear	25	000000	0000
11/32"	7/8"	15/16"	600°	Durometer 55A	Clear	25	000000	00000
1/2"	1"	31/32"	600°	Durometer 55A	Clear	10	0000000	00000
3/4"	1"	15/16"	600°	Durometer 55A	Clear	5	0000000	00000

Flanged Pull-Through Round Plugs

Designed with a flange, these plugs protect countersunk holes during anodizing, electroplating, paint baking, and powder-coating applications. All withstand temperatures up to 600° F. Use the smaller end of the plug to pull the larger end into a through hole to form a tight seal.

For technical drawings and 3-D models, click on a part number.

Silicone Rubber
For ID	Ht.	Flange Dia.	Max. Temp., °F	Hardness	Color	Pkg. Qty.		Pkg.
3/16"	3/8"	13/32"	600°	Durometer 55A	Clear	10	0000000	00000
9/32"	3/8"	11/16"	600°	Durometer 55A	Clear	10	0000000	0000

Miniature Pull-Through Round Plugs

Also known as mouse tails, these tiny plugs fit hole IDs as small as 0.025". They're commonly used for masking parts during finishing applications. Use the end of the plug to pull it into a through hole to form a tight seal.

For technical drawings and 3-D models, click on a part number.

Silicone Rubber
For ID	Ht.	Tab Ht.	Max. Temp., °F	Hardness	Color	Pkg. Qty.		Pkg.
0.025"-0.08"	2"	1/2"	600°	Durometer 55A	Clear	10	0000000	00000

High-Temperature Round Plugs for NPT Pipe

These plugs withstand temperatures up to 600° F to protect internally threaded NPT connections from contaminants during electroplating, paint baking, and powder coating applications. All have a tear-away nipple that allows pressure to release during curing. Install these plugs manually or with a square-drive wrench or socket.

For technical drawings and 3-D models, click on a part number.

External Square Drive
Pipe Size	Ht.	Max. Temp., °F	Hardness	Color	Pkg. Qty.		Pkg.
Silicone Rubber
1	11/16"	600°	Durometer 55A	Clear	1	0000000	00000

Screw Caps

Conceal and protect the tops of socket head or button head screws.

For technical drawings and 3-D models, click on a part number.

Flexible Plastic
For Thread Dia.	Head Dia.	Max. Temp., °F	Color	Pkg. Qty.		Pkg.
For Socket Head Screws
1/4"	1/2"	150°	Semi-Clear	100	0000000	00000
5/16"	0.59"	150°	Semi-Clear	100	0000000	00000
3/8"	0.69"	150°	Semi-Clear	100	0000000	00000
1/2"	0.88"	150°	Semi-Clear	100	0000000	00000

Stretchable Elastic Caps

Similar to a shower cap, these caps have an elastic band that allows them to stretch and cover a variety of shapes in a range of sizes. They are often used in masking applications to protect against contaminants.

Flexible Polyethylene Plastic
For OD	Max. Temp., °F	Color	Pkg. Qty.		Pkg.
1 1/2"-5"	150°	Clear	10	0000000	000000
1 1/2"-8"	150°	Clear	5	0000000	00000
2 1/4"-11"	150°	Clear	5	0000000	00000
2 7/8"-16"	150°	Clear	5	0000000	00000
3 5/8"-17"	150°	Clear	2	0000000	00000
4 3/8"-24"	150°	Clear	2	0000000	00000

Tear-Tab Caps

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

For technical drawings and 3-D models, click on a part number.

Rigid Polyethylene Plastic
For OD	For Thread Dia.	Inside Ht.	Max. Temp., °F	Color	Pkg. Qty.		Pkg.
For Straight-Thread Pipe
0.495"	5/16"	15/32"	150°	Clear	10	0000000	00000
0.559"	3/8"	15/32"	150°	Clear	10	0000000	0000
0.615"	3/8"	15/32"	150°	Clear	10	0000000	0000
0.74"	1/2"	9/16"	150°	Clear	10	0000000	0000
1.053"	3/4"	27/32"	150°	Clear	10	0000000	0000
1.303"	7/8"	3/4"	150°	Clear	10	0000000	0000

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