McMaster-Carr

Search Results

	Material Material

Steel

Stainless
Steel

	For Knockout Trade Size For Knockout Trade Size

	Color Color

	Gray
	Black
	Red
	Brown
	Off-White
	White
	Blue
	Orange
	Pink
	Clear
	Green
	Semi-Clear
	Yellow
	Beige
	Dark Blue
	Dark Brown
	Dark Green
	Dark Red
	Light Brown
	Light Gray
	Olive
	Purple
	Silver
	Tan

	Environment Environment

	Environmental Rating Environmental Rating

	System of Measurement System of Measurement

Inch

Metric

	For Knockout Diameter For Knockout Diameter

1/2"-13/16"

7/8"-1 9/32"

1 3/8"-1 3/4"

2"-2 9/16"

	For Shape For Shape


Round	Rectangle

Angle	Corner

DIN Rail	Square

	Plug Type Plug Type


Push In	Snap In

Locking	Expandable

Pull Through	Tamper Evident

Screw In

	ID (C) ID (C)

1/64" to 1/8"

1/64" to 3/16"

1/64" to 1/4"

1/64" to 5/16"

1/64" to 3/8"

1/64" to 13/32"

1/64" to 1/2"

1/64" to 9/16"

1/64" to 5/8"

1/64" to 11/16"

1/64" to 23/32"

1/64" to 3/4"

1/64" to 7/8"

1/64" to 1"

1/64" to 1 1/8"

1/64" to 1 1/4"

1/64" to 1 1/2"

1/64" to 1 3/4"

1/64" to 2"

1/64" to 4"

1/32" to 5/16"

1/32" to 7/16"

1/32" to 1/2"

1/32" to 9/16"

1/32" to 3/4"

1/32" to 13/16"

1/32" to 7/8"

1/32" to 15/16"

1/32" to 1"

1/32" to 1 1/16"

1/32" to 1 3/8"

1/32" to 1 5/8"

1/32" to 1 3/4"

1/32" to 2"

1/32" to 2 1/2"

1/32" to 3"

3/32" to 3/8"

1/8" to 2"

5/32" to 13/16"

1/4" to 2"

3/8" to 1 1/4"

3/8" to 2"

1/2" to 2"

5/8" to 2"

3/4" to 2"

1" to 2"

1" to 2 3/4"

1 1/8" to 2"

1 1/4" to 2"

1 1/2" to 3"

1 3/4" to 2 3/4"

2 1/8" to 3"

	For ID For ID

0.025"-0.08"

1/32"-3/64"

1/32"-3/32"

1/32"-1/8"

3/64"-1/16"

3/64"-7/64"

3/64"-13/64"

0.05"-0.08"

1/16"

1/16"-5/64"

1/16"-11/64"

1/16"-13/64"

0.07"-0.11"

5/64"-1/16"

5/64"-7/64"

5/64"-1/8"

5/64"-11/64"

3/32"

0.1"-0.15"

7/64"-9/64"

7/64"-5/32"

0.116"-0.182"

1/8"

1/8"-1/2"

0.14"-0.21"

0.14"-0.275"

9/64"-3/16"

9/64"-15/64"

9/64"-23/64"

0.15"

5/32"

5/32"-13/64"

0.16"-0.275"

11/64"

11/64"-15/64"

3/16"

3/16"-1/4"

0.19"-0.3"

0.19"-0.32"

13/64"

13/64"-9/32"

13/64"-21/64"

7/32"

7/32"-19/64"

0.22"-0.33"

0.22"-0.37"

15/64"

0.236"-0.302"

0.24"-0.295"

1/4"

1/4"-9/32"

1/4"-7/16"

17/64"-5/16"

17/64"-23/64"

17/64"-3/8"

17/64"-27/64"

0.27"-0.4"

9/32"

9/32"-23/64"

9/32"-25/64"

0.29"

19/64"

19/64"-21/64"

0.299"-0.365"

0.31"-0.33"

5/16"

21/64"

21/64"-7/16"

21/64"-31/64"

21/64"-1/2"

0.33"-0.396"

0.34"-0.45"

11/32"

11/32"-3/8"

11/32"-13/32"

11/32"-15/32"

11/32"-1/2"

23/64"-29/64"

0.361"-0.418"

0.361"-0.427"

3/8"-27/64"

25/64"-19/32"

13/32"-19/32"

0.419"-0.485"

27/64"-29/64"

27/64"-37/64"

7/16"

7/16"-35/64"

0.44"

29/64"

29/64"-31/64"

29/64"-37/64"

29/64"-39/64"

29/64"-43/64"

0.46"-0.57"

15/32"

15/32"-17/32"

0.471"-0.536"

0.471"-0.547"

31/64"

31/64"-35/64"

1/2"

1/2"-37/64"

1/2"-21/32"

0.51"

33/64"-19/32"

33/64"-41/64"

33/64"-45/64"

17/32"

17/32"-39/64"

17/32"-11/16"

0.532"-0.608"

35/64"-41/64"

35/64"-3/4"

0.55"-0.631"

0.56"

9/16"

9/16"-5/8"

37/64"-11/16"

37/64"-47/64"

0.58"-0.667"

0.59"-0.7"

19/32"

19/32"-43/64"

19/32"-45/64"

39/64"

39/64"-23/32"

0.61"-0.7"

5/8"

5/8"-45/64"

5/8"-23/32"

0.64"-0.727"

41/64"-23/32"

41/64"-49/64"

41/64"-25/32"

41/64"-51/64"

21/32"

0.66"

43/64"-23/32"

43/64"-47/64"

43/64"-49/64"

43/64"-25/32"

11/16"

0.69"-0.788"

0.71"-0.82"

23/32"

23/32"-53/64"

23/32"-15/16"

47/64"-53/64"

47/64"-7/8"

47/64"-59/64"

0.74"-0.83"

3/4"

3/4"-0.848"

3/4"-1"

49/64"-57/64"

49/64"-29/32"

0.787"

51/64"-59/64"

51/64"-15/16"

51/64"-31/32"

51/64"-1"

51/64"-1 1/64"

13/16"

0.82"

53/64"-31/32"

53/64"-63/64"

0.84"-0.95"

27/32"

27/32"-1 7/32"

0.86"

0.866"-0.975"

7/8"

7/8"-1"

57/64"-31/32"

29/32"

29/32"-1 1/16"

0.915"-1.04"

59/64"-1"

59/64"-1 3/64"

15/16"

61/64"-1 1/64"

61/64"-1 3/64"

61/64"-1 5/64"

61/64"-1 3/32"

0.96"-1.05"

0.96"-1.07"

0.964"-1.09"

31/32"

63/64"-1 3/64"

0.99"-1.08"

1"-1 1/8"

1 1/32"

1 1/32"-1 1/4"

1.04"

1 3/64"-1 11/64"

1 3/64"-1 1/4"

1 1/16"

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"

1.09"-1.2"

1 3/32"

1.094"-1.215"

1 7/64"-1 19/64"

1 1/8"

1 1/8"-1 7/32"

1 9/64"-1 13/32"

1 5/32"

1 11/64"-1 19/64"

1.175"-1.284"

1 3/16"

1 3/16"-1 7/16"

1 3/16"-1 29/64"

1.21"-1.3"

1 7/32"

1 7/32"-1 3/8"

1.23"-1.33"

1 15/64"-1 27/64"

1 15/64"-1 17/32"

1 1/4"

1 1/4"-1 5/16"

1 17/64"-1 31/64"

1.29"

1 19/64"-1 27/64"

1 19/64"-1 1/2"

1.312"-1.465"

1 5/16"-1 39/64"

1 5/16"-1 5/8"

1 21/64"-1 35/64"

1 21/64"-1 9/16"

1 21/64"-1 19/32"

1.34"-1.45"

1 11/32"

1 11/32"-1 1/2"

1 23/64"-1 9/16"

1.36"-1.45"

1 3/8"

1 27/64"-1 35/64"

1 27/64"-1 11/16"

1 7/16"

1 29/64"-1 5/8"

1.46"-1.55"

1 15/32"

1 15/32"-1 5/8"

1 15/32"-1 3/4"

1 15/32"-1 49/64"

1 31/64"-1 3/4"

1.49"-1.58"

1 1/2"

1 1/2"-1 37/64"

1 1/2"-1 11/16"

1 1/2"-1 51/64"

1.513"-1.6"

1 33/64"-1 23/32"

1 17/32"-1 45/64"

1 35/64"-1 43/64"

1 35/64"-1 3/4"

1.56"-1.682"

1.59"-1.68"

1.59"-1.7"

1 19/32"-1 3/4"

1 5/8"

1 41/64"-1 61/64"

1 21/32"-1 15/16"

1 21/32"-1 31/32"

1 43/64"-1 13/16"

1.7"

1 45/64"-1 29/32"

1 23/32"-1 7/8"

1 23/32"-1 59/64"

1.74"-1.83"

1 3/4"

1 3/4"-1 13/16"

1 3/4"-1.88"

1.781"-1.805"

1 25/32"-2 5/64"

1 51/64"-1 59/64"

1 13/16"-2 1/64"

1 53/64"-2 1/32"

1.84"-1.93"

1.84"-1.95"

1.86"-1.99"

1.865"-1.975"

1 7/8"

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"

1 31/32"-2 15/32"

1.975"-2.132"

1 63/64"-2 15/32"

1.99"-2.08"

2"-2 13/32"

2 1/64"-2 13/32"

2 3/64"-2 11/64"

2.067"-2.243"

2.11"-2.2"

2 9/64"-2 1/2"

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 3/16"-2 29/64"

2 7/32"-2 1/4"

2.23"-2.26"

2 1/4"

2 19/64"-2 27/64"

2 19/64"-2 21/32"

2.298"-2.464"

2 5/16"-2 21/32"

2 21/64"-2 5/8"

2.34"-2.43"

2.395"-2.602"

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"-2.875"

2 1/2"

2.5"-2.875"

2 35/64"-2 43/64"

2.614"-2.79"

2 5/8"

2 43/64"-2 13/16"

2 3/4"

2 51/64"-2 59/64"

2.81"-2.88"

2.849"-2.98"

2 59/64"-3 3/64"

2 61/64"-3 17/32"

2.975"-3.103"

3"-3.375"

3"-3 15/32"

3 1/64"-3 17/32"

3 3/64"-3 11/64"

3 3/64"-3 7/16"

3.14"-3.28"

3 17/64"-4 1/32"

3.27"-3.562"

3 9/32"-4 3/64"

3 19/64"-3 15/16"

3.325"-3.457"

3 11/32"-3 15/16"

3 3/8"

3.47"-3.6"

3 1/2"

3.5"-3.875"

3 33/64"-4 63/64"

3.52"-3.67"

3 35/64"-4 15/16"

3 35/64"-5"

3 19/32"-4.875"

3.73"-3.87"

3.75"-4.125"

3.79"-3.92"

4"-4.375"

4.02"-4.14"

4 3/64"-4 15/16"

4.25"-4.625"

4.27"-4.43"

4 19/64"-5 9/64"

4.34"-4.51"

4.5"-4.875"

4.75"-5"

4 51/64"-5 47/64"

4.99"-5.2"

5"-5.375"

5 3/64"-6 1/16"

5.5"-5.875"

6"-6.375"

6.25"-6.5"

6.4"-6.56"

6.5"-6.875"

7.97"-8.14"

15-16mm

16-18mm

19-20mm

21-22mm

23-24mm

25-26mm

27-28mm

29-30mm

31-32mm

32mm

33-34mm

34mm

	For Material Thickness (B) For Material Thickness (B)

1/32"

1/32"-1/16"

1/32"-0.125"

1/32"-0.25"

3/64"

0.05"-0.12"

0.05"-0.18"

0.072"-0.135"

1.45-2.34mm

2.87-3.13mm

	For Hole Diameter (A) For Hole Diameter (A)

	Mount Type Mount Type


Press Fit	Snap In

Screw	Heat Shrink

Adhesive	Hammer In

Threaded Stud

	Head Diameter Head Diameter

	Profile Profile


Tapered	Straight

	Maximum Temperature Maximum Temperature

	For OD For OD

0.053" to 0.12"

1/16" to 1/8"

0.079" to 0.15"

0.08" to 0.31"

0.111" to 0.177"

1/8" to 3/16"

3/16" to 1/4"

3/16" to 1/2"

0.205" to 0.273"

0.235" to 0.302"

1/4" to 0.26"

1/4" to 5/16"

1/4" to 1/2"

0.298" to 0.365"

5/16" to 3/8"

0.327" to 0.394"

0.35" to 0.55"

0.356" to 0.422"

0.37" to 0.4"

3/8" to 7/16"

3/8" to 7/8"

3/8" to 1"

0.38" to 0.4"

0.385" to 0.451"

0.409" to 0.485"

0.468" to 0.545"

0.47" to 0.59"

0.487" to 0.568"

1/2" to 0.55"

1/2" to 9/16"

0.518" to 0.605"

0.58" to 0.63"

0.613" to 0.693"

5/8" to 11/16"

0.63" to 0.71"

0.643"

21/32" to 1 3/8"

0.663" to 0.761"

0.687" to 0.785"

0.72" to 0.82"

0.74" to 0.849"

3/4" to 13/16"

0.753" to 0.868"

13/16"

0.82" to 0.91"

0.82" to 0.92"

7/8" to 15/16"

7/8" to 1 3/8"

7/8" to 2 1/4"

0.893"

0.901" to 1.027"

0.92" to 1.01"

0.933" to 1.083"

1" to 1 1/16"

1.02" to 1.1"

1 1/32" to 2 5/32"

1 1/16" to 1 1/8"

1.085" to 1.358"

1.11" to 1.19"

1 1/8"

1 1/8" to 1 3/16"

1.143"

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" to 1.39"

1 3/8" to 1 7/16"

1 7/16" to 2 15/16"

1.463"

1.478"

1.498" to 1.62"

1 1/2"

1 1/2" to 1 9/16"

1 1/2" to 1.62"

1 1/2" to 5"

1 1/2" to 8"

1.568" to 1.688"

1.62" to 1 3/4"

1 5/8" to 1 11/16"

1.688" to 1.818"

1.718" to 1.888"

1 3/4"

1 3/4" to 1 13/16"

1.781" to 1.938"

1.837" to 2.013"

1.87" to 2"

1 7/8" to 1 15/16"

1.953" to 2.085"

2" to 2 1/16"

2" to 2.12"

2.063" to 2.377"

2.074" to 2 1/4"

2.12" to 2 1/4"

2 1/8" to 2 3/16"

2.235" to 2.401"

2 1/4"

2 1/4" to 2 5/16"

2 1/4" to 2.37"

2 1/4" to 11"

2.3"

2.313"

2.333" to 2.54"

2.37" to 2.5"

2 3/8"

2 3/8" to 2 7/16"

2.395" to 2.688"

2 1/2"

2 1/2" to 2 9/16"

2 1/2" to 2.62"

2.579" to 2.728"

2.62" to 2.75"

2 5/8" to 2 11/16"

2.656" to 2.926"

2.685" to 2.947"

2 3/4"

2 3/4" to 2 13/16"

2.787" to 2.918"

2.792"

2.87" to 3"

2 7/8"

2 7/8" to 16"

2.912" to 3.175"

3" to 3 1/16"

3.02" to 3.3"

3.12" to 3 1/4"

3 1/8" to 3 3/16"

3.2" to 3.492"

3 1/4"

3 1/4" to 3 5/16"

3.37" to 3.5"

3.41" to 3.54"

3.411"

3.45"

3.48" to 3.66"

3 1/2"

3 1/2" to 3 9/16"

3.62" to 3.75"

3 5/8"

3 5/8" to 3 11/16"

3 5/8" to 17"

3.71" to 3.84"

3.86" to 4"

3.94" to 4.07"

4" to 4 1/16"

4" to 4.12"

4 1/8"

4.22"

4.29" to 4.54"

4.37" to 4.62"

4 3/8" to 24"

4.5" to 4.62"

4 3/4" to 4 13/16"

4.92" to 5.1"

5.21" to 5.37"

5.49" to 5.67"

5.92" to 6.1"

6.33" to 6.49"

6.53" to 6.63"

8.67" to 8.73"

4 to 5 mm

5 to 6 mm

6 to 7 mm

8 mm

8 to 9 mm

9 to 10 mm

10 mm

10 to 11 mm

11 to 12 mm

12 mm

12 to 13 mm

13 to 15 mm

14 mm

14 to 16 mm

15 to 17 mm

16 mm

16 to 18 mm

17 to 19 mm

18 to 20 mm

20 to 22 mm

24 to 26 mm

	For Pipe Size For Pipe Size

	Cap Type Cap Type


Push On	Screw On

Stretchable	Snap On

Adhesive Back	Weld On

Shrink Fit

	For Maximum Panel Thickness For Maximum Panel Thickness

	Specifications Met Specifications Met

CSA

Mil. Spec.

FDA Compliant

NAS

OSHA

USP

	Finish Finish

View catalog pages (30)

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3,326 Products

Hole Plugs for Enclosures

Washdown Hole Plugs

Sized for knockouts and conduit openings.

Washdown Hole Plugs
for Push-Button Holes

Sized for 22 mm and 30 mm push-button holes.

Self-Centering Hole Plugs

A circular groove quickly centers plug in unused holes and knockouts.

Snap-In Hole Plugs

Threaded Hole Plugs

Close off unused threaded holes.

Corrosion-Resistant
Washdown Hole Plugs

Sized for knockouts and conduit openings.

Corrosion-Resistant Washdown
Hole Plugs for Push-Button Holes

Sized for 22 mm and 30 mm push-button holes.

Corrosion-Resistant Washdown
Hole Plugs for Square Holes

Close 2" square holes in the floor of your enclosure with these adhesive plugs.

Submersible Hole Plugs

Threaded Submersible Hole Plugs

Close off unused threaded holes.

Grommets

Push these flexible grommets into place to protect wire, cable, and cords by turning rough-edged and uneven holes into smooth, insulated holes. Commonly used in metal panels, they also damp vibration.

Grommet Assortments

Keep grommets of various sizes on hand to solve whatever problems arise.

Cut-to-Size Grommets

Cut the thin layer of rubber in the center of these grommets to create custom IDs to securely hold and protect wire, cable, and cords. Push these grommets into place. They turn rough-edged and uneven holes into smooth, insulated holes. Commonly used in metal panels, they also damp vibration. Also known as webbed grommets.

High-Temperature Grommets

These flexible grommets withstand temperatures of 450° F or greater, which is approximately twice as high as our standard grommets. Push them into place to protect wire, cable, and cords by turning rough-edged and uneven holes into smooth, insulated holes. Commonly used in metal panels, they also damp vibration.

Expandable Grommets

The center hole has flaps that flex to hold and protect various sizes of wire, cable, and cords while keeping out dust and debris. Push these grommets into place. They turn rough-edged and uneven holes into smooth, insulated holes.

Locking Grommets

These grommets snap into place and have wings that expand against the sides of the hole to lock them in position. Use them to protect wire, cable, and cords by turning rough-edged and uneven holes into smooth holes.

Expandable Locking Grommets

The center hole has flaps that flex to hold and protect various sizes of wire, cable, and cords while keeping out dust and debris. Snap these grommets into place and their wings expand against the sides of the hole to lock them in position. Use them to turn rough-edged and uneven holes into smooth holes.

Split Grommets

A slit in the side of these grommets allows you to install them around wire, cable, and cords that are already in place. They snap into the hole and their wings hold them tight. Use them to turn rough-edged and uneven holes into smooth, insulated holes.

Pipe and Tubing Grommets

Snap-In Pipe and Tubing Grommets

These grommets have two flanges that snap around holes and flex to compensate for misalignment and movement of pipe and tubing. They're often used for routing applications in panel walls.

Push-In Pipe and Tubing Grommets

Press these flexible grommets into holes and their tapered inner wall will expand when pipe or tubing is inserted to hold them snugly in place. They're often used for routing applications on metal, plastic, and fiberglass tanks.

Sealing Grommets

Create-Your-Own Split
Sealing Grommets

Cut the center of these grommets with a utility knife to create custom IDs. The two-piece design makes it easy to install and seal these grommets around wire, cable, and cords that are already in place. Use them to keep out dust, debris, and moisture.

Split Sealing Grommets

The two-piece design makes it easy to install and seal these grommets around wire, cable, and cords that are already in place. Use them to keep out dust, debris, and moisture.

Shrink-to-Fit Sealing Grommets

Apply heat and these grommets shrink around wire, cable, and cords to keep out dust, debris, and moisture.

Sealing Grommets

Create a tight seal around wire, cable, and cords with these grommets to keep out dust, debris, and moisture.

Liquid-Tight Sealing Grommets

Rated IPX6 and IPX7, these grommets form liquid-tight seals around wire, cable, and cords to protect them against high-pressure washdowns as well as temporary submersion in a maximum of one meter of water. Often used in marine, antenna cable, and lighting cable applications, they can be used outdoors.

Furniture Grommets

Expandable Furniture Grommets

The center hole has flaps that flex to accommodate various sizes of wire, cable, and cords while still providing dust and debris protection. Use these grommets to eliminate cord clutter on desktops, countertops, benchtops, and other work surfaces.

Flexible Furniture Grommets

Squeeze these flexible grommets to open the center flap—once wire, cable, and cords pass through, the flap closes tightly for dust and debris protection as well as a finished look. Use them to eliminate cord clutter on desktops, countertops, benchtops, and other work surfaces.

Brush-Style Furniture Grommets

Wire, cable, and cords pass through the grommet opening while the bristles fill in the gaps to control dust and debris. Use these grommets to eliminate cord clutter on desktops, countertops, benchtops, and other work surfaces.

Furniture Grommets

Eliminate clutter on desktops, countertops, benchtops, and other work surfaces by organizing wire, cable, and cords.

Shaft Grommets

Support shafts, bearings, and other moving parts that are routed through a hole. These grommets are slippery to allow parts to move freely in the hole. Install them on thin sheet-metal panels.

Fabric Grommets

Reinforcing Fabric Grommets

The extended neck on the washer of these grommets adds reinforcement so you can use them in thicker material such as woven fabrics. Press them into a hole you've already cut. They strengthen and prevent holes from fraying in tarps, covers, and curtains. They also provide a way to run rope and cable through your material.

Rolled-Rim Reinforcing
Fabric Grommets

A rolled rim provides added grip while the elongated neck and teeth on the washer, also known as a spur washer, add reinforcement and reduce rotation so you can use these grommets in thick materials such as canvas. Press the grommets into a hole you've already cut. They strengthen and prevent holes from fraying in tarps, covers, and curtains. They also provide a way to run rope and cable through your material.

Fabric Grommet Kits

Kits include grommets, a cutting punch, a cutting block, an installation punch, and a die set. Use them to create a way to run rope and cable through tarps, covers, and curtains.

Snap-In Fabric Grommets

No setting tools needed—snap the two parts together in a hole you've already cut to strengthen the hole and eliminate fraying. Use these grommets in tarps, covers, curtains, and other material.

Fabric Grommets

Press these grommets into a hole you've already cut. They strengthen and prevent holes from fraying in tarps, covers, and curtains. They also provide a way to run rope and cable through your material.

Self-Piercing Fabric Grommets

The sharp neck on these grommets cuts the material as you press them into place, eliminating the need for a cutting punch. They strengthen and prevent holes from fraying in tarps, covers, and curtains. They also provide a way to run rope and cable through your material.

Bumpers

Tight-Grip Push-In Bumpers

A ridge on the stem provides a tighter grip than other push-in bumpers. Push the stem into a hole for quick installation. These bumpers are commonly used as feet on instruments and bench-top equipment to keep them from sliding. They're also good as spacers between sheets of material. Also known as stem and grommet bumpers.

Push-In Bumpers

Push the stem into a hole for quick installation. These bumpers are commonly used as feet on instruments and bench-top equipment to keep them from sliding. They're also good as spacers between sheets of material. Also known as stem and grommet bumpers.

Compressible-Stem Push-In Bumpers

The stem on these bumpers compresses to fit into tight holes. Push the stem into a hole for quick installation. These bumpers are commonly used as feet on instruments and bench-top equipment to keep them from sliding. They're also good as spacers between sheets of material. Also known as stem and grommet bumpers.

Tack Bumpers

Install with a few taps of a hammer. In addition to protecting soft materials such as wood, fiberboard, and plastic, these bumpers are commonly used on table and chair legs to safeguard floors.

Bumper Assortments

Keep bumpers of various shapes, materials, and mounting styles on hand to solve whatever problems arise.

Tapered Plugs

Often used as laboratory stoppers, these rubber plugs have good impact and abrasion resistance. They’re tapered to fit a range of hole diameters.

Expandable 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.

Corks

Lightweight and moisture resistant, these plugs are laboratory-grade 100% natural cork. They’re 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 Tapered Plug Assortments

Keep hollow tapered plugs of various sizes on hand to solve whatever problems arise. The hollow construction allows these plugs to compress for a snug fit in threaded and unthreaded holes of varying diameters.

Miniature Tapered Plugs

Sized to fit small openings, these tiny plugs fit snugly but can be removed easily using the flange. Their tapered design fits a range of hole diameters.

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.

Tamper-Evident Tapered Plugs

Often used on gas cylinders, these plugs cinch and lock tightly around valve heads to block the ports—they must be cut off making it clear if the cylinder has been tampered with. The plugs are tapered to fit a range of hole diameters.

High-Temperature Tapered Plugs

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

Miniature High-Temperature
Tapered Plugs

Sized to fit small openings, these tiny plugs fit snugly but can be removed easily using the flange. They withstand temperatures up to 470° F, which makes them good for electroplating, paint baking, and powder-coating applications. All are tapered to fit a range of hole diameters.

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.

Chemical-Resistant Tapered Plugs

These plugs have excellent chemical resistance for masking parts during chemical finishing applications such as plating and anodizing. Their tapered design fits a range of hole diameters.

Food-Grade Tapered Plugs

Made of FDA listed materials, these plugs are suitable for food contact. They're tapered to fit a range of hole diameters.

Round Plugs

Sealing Plugs

With a compressible flanged top, these plugs are designed to seal the ends of copper tubing often used in water supply lines, refrigerant lines, and HVAC compressors. All are sized to fit standard copper tube dimensions.

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.

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.

Round Plugs

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

Chemical-Resistant
Pull-Through Round Plugs

These plugs have excellent chemical resistance for masking parts during chemical finishing applications such as plating and anodizing. Use the smaller end of the plug to pull the larger end into a through hole to form a tight seal.

Conductive Round Plugs

With a surface resistivity of less than 10⁵ ohms, these plugs not only dissipate electrical charges, but can be used as an electrical shield.

Antistatic Round Plugs

Keep equipment safe from electrical currents with these plugs that have a surface resistivity of less than 10¹² ohms.

High-Temperature
Pull-Through Round Plugs

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

Pull-Tab Round Plugs

A time-saving alternative to threaded plugs, these plugs press in place and have an ergonomic pull tab for quick and easy removal. Use them to temporarily protect holes in objects from contaminants during storage, painting, and light fabrication.

Threaded Round Plugs for BSPT Pipe

Safeguard internally threaded BSPT connections from contaminants during fabrication and storage.

Threaded Round Plugs for NPT Pipe

Protect internally threaded NPT connections from contaminants during fabrication and storage.

Threaded Round Plugs
for 37° Flared Tube

Designed to fit into 37° flared connections such as those found on JIC and SAE fittings, these plugs protect internally threaded connections from contaminants during fabrication and storage.

Snap-In Round Plugs

Flexible ridges or straps hold these plugs in place and allow them to fit a range of hole diameters.

Threaded Round Plugs
for Straight-Thread Pipe

Seal tube and hose fittings to keep their straight threads protected from contaminants during fabrication and storage.

High-Temperature Round
Plugs for NPT Pipe

These plugs withstand temperatures up to 600° F to protect internally threaded NPT connections from contaminants during electropainting, paint baking, and powder coating applications.

Rectangular Plugs

Push-In Rectangular Plugs

Push these plugs into an opening and friction holds them in place.

Snap-In Rectangular Plugs

Flexible ridges securely hold these plugs in place and allow them to fit a range of hole sizes.

Square Plugs

Domed Square Plugs

Often used on metal furniture, these plugs provide a finished look on posts and tubes. Snap them into place and their flexible ridges will provide a secure grip.

Metal Square Plugs

More durable than plastic plugs, these provide the most protection from abrasion and impact. Use them to eliminate sharp edges and create a finished look on metal fence and machine-guard posts. Drive them in place with a hammer for a secure fit.

Push-In Square Plugs

Push these plugs into an opening and friction holds them in place.

Snap-In Square Plugs

Flexible ridges or straps hold these plugs in place.

Panel Plugs

Plastic Snap-In Panel Plugs

Tapered prongs or a snap-in ring securely hold these plugs in place.

Metal Snap-In Panel Plugs

Made of steel, these are our most durable plugs for panels. Tapered prongs snap into the hole to securely hold them in place.

Metal Snap-In Panel
Plug Assortments

Keep metal snap-in plugs of various sizes on hand to solve whatever problems arise. Made of steel, these plugs are our most durable plugs for panels. Their tapered prongs snap into holes to securely hold them in place.

Vented Snap-In Panel Plugs

Vents in the top allow air circulation and permit heat and fumes to escape. These plugs have tapered prongs that snap into the hole to securely hold them in place.

Sealing Panel Plugs

The wings on these plugs expand against the sides of a hole to form a liquid-tight seal. Pierce the plugs with round wire, cable, or tubing and they function as a grommet to create insulated holes.

Locking Panel Plugs

The wings on these plugs expand against the sides of a hole to lock them in place.

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.

Vented Locking Panel Plugs

Vents in the top allow air circulation and permit heat and fumes to escape. All of these plugs have wings that expand against the sides of the hole to lock them in place.

Push-In Panel Plugs

Push these plugs into place for a finished appearance on both sides of a panel.

Fixture Plate Chip Plugs

Keep chips and shavings from clogging or damaging unused holes on fixture plates in milling machines.

Hydraulic Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components.

Expansion Plugs for Castings

Also known as freeze plugs, these are commonly used to permanently seal the shallow holes left in a component during the casting process.

Ethernet Port Plugs

Shield unused RJ45 type ports on computers and other electronic equipment from debris and moisture.

Caps

Tapered Caps

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

Tapered Cap Assortments

Keep tapered caps of various sizes on hand to solve whatever problems arise. 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.

Domed Round Caps

The large domed head extends beyond the diameter of your pipe, rod, or tubing for added protection.

Heavy Duty Round Caps

Made of rigid plastic, these caps are more wear resistant than vinyl caps but not as flexible.

Round Caps

Slide these flexible vinyl caps on and they conform for a snug fit.

Metal Round Caps

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

Sure-Grip Round Caps

A long, textured pull tab provides a sure grip for quick removal even when wearing gloves.

Tethered Round Caps

The tethered design allows frequent access to the ends of pipe, tubing, and other round objects without ever misplacing the cap.

Roll-Resistant Round Caps

Commonly used on shipping tubes, these caps have a square head to prevent round objects from rolling during shipping and storage.

Hanging Round Caps

Slide these caps over a tool handle or other round object and use the eye to hang it.

Food-Grade Round Caps

Made of FDA listed materials, these caps are suitable for food contact.

Chemical-Resistant Round Caps

These caps have excellent chemical resistance for masking parts during chemical finishing applications such as plating and anodizing.

Antistatic Round Caps

Keep equipment safe from electrical currents with these caps that have a surface resistivity of less than 10¹² ohms.

High-Temperature Round Caps

Good for electroplating, paint baking, and powder-coating applications, these caps withstand temperatures up to 440° F or 570° F.

Conductive Round Caps

With a surface resistivity of less than 10⁵ ohms, these caps not only dissipate electrical charges, but can be used as an electrical shield.

Rectangular Caps

Slide these flexible vinyl caps onto rectangular objects and they conform for a snug fit.

Heavy Duty Angle Caps

Made of rigid plastic, these caps provide more wear resistance to the ends of angle iron than vinyl caps but are not as flexible.

Angle Caps

Place these flexible vinyl caps over the ends of your angle iron and they conform for a snug fit.

Corner Caps

Guard the corners of fragile materials such as glass and mirrors.

Square Caps

Slide these flexible vinyl caps on and they conform for a snug fit.

Heavy Duty Square Caps

Made of rigid plastic, these caps are more wear resistant than vinyl caps but not as flexible.

Flexible Pull-Tab Caps

Slide these flexible vinyl caps on and they conform for a snug fit. Pull the tab for easy removal.

High-Visibility Pull-Tab Caps

A vibrant yellow color makes these caps stand out. They are made of flexible rubber that conforms for a snug fit. Pull the tab for easy removal.

Rigid Pull-Tab Caps

Made of rigid plastic, these caps are more wear resistant than vinyl and rubber caps but not as flexible. Pull the tab for easy removal.

Tear-Tab Caps

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

Heat-Shrink Round Caps

Permanently seal pipe, tubing, conduit, and even crimped electrical connections. Slide these flexible caps on and use a heat gun to tightly shrink them to the shape of whatever they are covering. Their outer surface shrinks while the inner wall flows into voids to create a sealed connection.

Squeeze Top Caps

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

Stretchable Sealing Caps

Unroll these caps onto the tips of cartridges, spouts, and bottles for an airtight seal.

Threaded Caps

Protect externally threaded components from contaminants during fabrication and storage.

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.

Propane Tank Tear-Tab Caps

Designed for propane tanks such as those on forklifts and grills, these caps protect tank valves during storage and transit. Push the caps onto the valves, then tear their tab to break the seal for easy removal.

Fastener Caps

Screw Caps

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

Threaded Standoff Caps

Give open-ended standoffs a finished look and protect them from dirt and debris.

Snap-On Fastener Caps

To conceal and protect the entire screw head, insert your screw through the hole in the base and snap on the top.

Hinged Fastener Caps

A one-piece hinged design allows frequent access to screw heads without misplacing the top. To conceal and protect the entire screw head, insert your screw through the hole in the base and flip the hinged top over.

Flange Caps

Stretchable Flange Caps

Stretch these caps over flared edges such as flanged tubing and valve handles.

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.

Adhesive-Back Flange Caps

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

DIN Rail Caps

Guard the edges of DIN rail from damage and create a finished look.

Rebar Caps

Keep personnel safe from protruding rebar and pipe. Made of rigid plastic, these durable safety caps are bright orange or yellow for excellent visibility.

Capacitor Caps

Also known as capacitor boots, these caps protect capacitors and wire connections from damage to extend their service life. They also insulate wire terminal connections to help reduce accidental shocks.

Stacking Caps and Targets

Weld these caps and targets to the ends of posts to create stackable shelving and racking systems.

USB Caps

Shield USB connectors from damage, contaminants, and moisture when they are not being used.

Pressure and Vacuum Monitoring and Control

Wing Nut Expansion Plugs

Twist the wing nut on these plugs to expand the seal.

Quick-Snap Expansion Plugs

Turn the cam handle to expand the seal, then snap the handle down to hold it in place.

T-Handle Expansion Plugs

Twist the easy-grip t-handle on these plugs to expand the seal.

Hex-Nut Expansion Plugs

Tighten the nut on these plugs to expand the seal.

Square-Head Expansion Plugs

Turn the square head of the plug into the sealing ring to close off pipe openings.

Expansion Plugs with Bypass

Use the bypass tube on these plugs to add air, water, and other fluid to your pipeline or to relieve pressure while testing.

Deep-Reach Wing
Nut Expansion Plugs

Insert these plugs deep within your pipe to seal it off from the inside.

Deep-Reach Hex Nut
Expansion Plugs with Bypass

Use the bypass tube to add air, water, and fluid or relieve back pressure.

Expansion Plugs for Tubing

These plugs are designed for metal and rigid plastic tubing.

Air-Inflatable Plugs

Also known as pneumatic plugs, these plugs conform to wide and out-of-round pipes.

Air- and Water-Inflatable Plugs

Penetrate tight pipe junctures with the most flexible expansion plugs we offer.

Air- and Water-Inflatable
Plugs for Y-Joints

These extra-long plugs allow you to seal off two pipes at the same time. They have two separate inflation chambers to release back pressure gradually and prevent splash back as water clears the drain line.

Air-Inflatable Plugs with Bypass

Use the bypass tube on these plugs to add air, water, and other fluid to your pipeline or to relieve back pressure while testing.

Pressure Test Fittings

Check pressure without permanently installing a gauge.

Quick-Install Pressure Test Fittings

Tighten these threaded fittings with your hands for a secure connection in testing, flushing, venting, and plugging applications—no tools, tape, or sealant required.

Cleanout and Drain Pipe Plugs

Drain Pipe Plugs

Seal unthreaded pipe ends with these plugs. They come with a band that clamps over the outside wall of your pipe and tightens with a screwdriver.

Cleanout Plugs

Close off your drain cleanout pipe with these plugs.

Terms and Conditions and Privacy Policy

Hole Plugs for Enclosures

Washdown Hole Plugs

Washdown Hole Plugsfor Push-Button Holes

Self-Centering Hole Plugs

Snap-In Hole Plugs

Threaded Hole Plugs

Corrosion-ResistantWashdown Hole Plugs

Corrosion-Resistant WashdownHole Plugs for Push-Button Holes

Corrosion-Resistant WashdownHole Plugs for Square Holes

Submersible Hole Plugs

Threaded Submersible Hole Plugs

Grommets

Grommets

Grommet Assortments

Cut-to-Size Grommets

High-Temperature Grommets

Expandable Grommets

Locking Grommets

Expandable Locking Grommets

Split Grommets

Pipe and Tubing Grommets

Snap-In Pipe and Tubing Grommets

Push-In Pipe and Tubing Grommets

Sealing Grommets

Create-Your-Own SplitSealing Grommets

Split Sealing Grommets

Shrink-to-Fit Sealing Grommets

Sealing Grommets

Liquid-Tight Sealing Grommets

Furniture Grommets

Expandable Furniture Grommets

Flexible Furniture Grommets

Brush-Style Furniture Grommets

Furniture Grommets

Shaft Grommets

Shaft Grommets

Fabric Grommets

Reinforcing Fabric Grommets

Rolled-Rim ReinforcingFabric Grommets

Fabric Grommet Kits

Snap-In Fabric Grommets

Fabric Grommets

Self-Piercing Fabric Grommets

Bumpers

Tight-Grip Push-In Bumpers

Push-In Bumpers

Compressible-Stem Push-In Bumpers

Tack Bumpers

Bumper Assortments

Tapered Plugs

Tapered Plugs

Expandable Tapered Plugs

Corks

Hollow Tapered Plugs

Hollow Tapered Plug Assortments

Miniature Tapered Plugs

Pull-Ring Tapered Plugs

Tamper-Evident Tapered Plugs

High-Temperature Tapered Plugs

Hollow High-TemperatureTapered Plugs

Miniature High-TemperatureTapered Plugs

Expandable High-TemperatureTapered Plugs

Chemical-Resistant Tapered Plugs

Food-Grade Tapered Plugs

Round Plugs

Sealing Plugs

Flanged Pull-Through Round Plugs

Miniature Pull-Through Round Plugs

Round Plugs

Chemical-ResistantPull-Through Round Plugs

Conductive Round Plugs

Antistatic Round Plugs

High-TemperaturePull-Through Round Plugs

Pull-Tab Round Plugs

Threaded Round Plugs for BSPT Pipe

Threaded Round Plugs for NPT Pipe

Threaded Round Plugsfor 37° Flared Tube

Snap-In Round Plugs

Threaded Round Plugsfor Straight-Thread Pipe

High-Temperature RoundPlugs for NPT Pipe

Washdown Hole Plugs
for Push-Button Holes

Corrosion-Resistant
Washdown Hole Plugs

Corrosion-Resistant Washdown
Hole Plugs for Push-Button Holes

Corrosion-Resistant Washdown
Hole Plugs for Square Holes

Create-Your-Own Split
Sealing Grommets

Rolled-Rim Reinforcing
Fabric Grommets

Hollow High-Temperature
Tapered Plugs

Miniature High-Temperature
Tapered Plugs

Expandable High-Temperature
Tapered Plugs

Chemical-Resistant
Pull-Through Round Plugs

High-Temperature
Pull-Through Round Plugs

Threaded Round Plugs
for 37° Flared Tube

Threaded Round Plugs
for Straight-Thread Pipe

High-Temperature Round
Plugs for NPT Pipe

Metal Snap-In Panel
Plug Assortments