McMaster-Carr

Search Results

	Plug Type Plug Type


Snap In	Push In

Locking	Screw In

Pull Through	Expandable

End	Tamper Evident

	For Shape For Shape


Round	Square

Rectangle	Hex

Angle	Corner

DIN Rail

	System of Measurement System of Measurement

Inch

Metric

	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"

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"

3/16"

3/16"-1/4"

0.19"-0.3"

0.19"-0.32"

13/64"-9/32"

13/64"-21/64"

7/32"

7/32"-19/64"

0.22"-0.33"

0.22"-0.37"

0.236"-0.302"

0.24"-0.295"

1/4"

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"

0.299"-0.365"

0.31"-0.33"

5/16"

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"-15/32"

11/32"-1/2"

23/64"-29/64"

0.361"-0.418"

0.361"-0.427"

3/8"

3/8"-27/64"

0.39"

25/64"-19/32"

13/32"

13/32"-19/32"

0.419"-0.485"

27/64"-37/64"

7/16"

7/16"-35/64"

0.44"

29/64"-31/64"

29/64"-37/64"

29/64"-39/64"

29/64"-43/64"

0.46"-0.57"

15/32"

0.471"-0.536"

0.471"-0.547"

31/64"-35/64"

1/2"

1/2"-21/32"

0.51"

33/64"-19/32"

33/64"-41/64"

33/64"-45/64"

17/32"

17/32"-39/64"

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"-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"

11/16"

0.69"-0.788"

0.71"-0.82"

23/32"

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"-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"-1 7/32"

0.866"-0.975"

57/64"-31/32"

29/32"-1 1/16"

0.915"-1.04"

59/64"-1"

59/64"-1 3/64"

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 1/32"

1 1/32"-1 1/4"

1.04"

1 3/64"-1 1/4"

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"

1.175"-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 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 23/64"-1 9/16"

1.36"-1.45"

1 3/8"

1 27/64"-1 11/16"

1 29/64"-1 5/8"

1.46"-1.55"

1 15/32"

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 3/4"

1.56"-1.682"

1.59"-1.68"

1.59"-1.7"

1 5/8"

1 41/64"-1 61/64"

1 21/32"-1 15/16"

1 21/32"-1 31/32"

1.7"

1 45/64"-1 29/32"

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 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 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"

2.067"-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 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 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 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"

2.614"-2.79"

2 5/8"

2.81"-2.88"

2.849"-2.98"

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 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

	Material Material

Plastic

Rubber

Fiberglass

	Color Color

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

	Profile Profile


Straight	Tapered

	Head Diameter Head Diameter

	For Surface Type For Surface Type

Unthreaded

Threaded

	Maximum Temperature Maximum Temperature

	Height Height

	Head Width Head Width

	Type Type


Plug	Cap

Adapter	Flange

	Pipe Size 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
4
5
6
8
10
12

	Thread Type Thread Type

	Hardness Hardness

	For Panel Thickness For Panel Thickness

0.016"-0.062"

0.016"-0.063"

0.016"-0.125"

0.016"-0.25"

0.02"-0.07"

0.02"-0.18"

0.02"-0.25"

0.03"-0.08"

0.03"-0.11"

0.031"-0.062"

0.031"-0.072"

0.031"-0.094"

0.031"-0.109"

0.031"-0.125"

0.031"-0.14"

0.031"-0.171"

0.05"-0.1"

0.05"-0.11"

0.059"-0.08"

0.06"-0.08"

0.06"-0.11"

1/16"

0.063"-0.25"

0.07"-0.13"

0.125"-0.25"

0.5-1 mm

0.5-1.5 mm

0.8-1.6mm

0.8-2mm

0.8-2.5mm

0.8-3.5mm

0.8-4mm

	For Inside Width For Inside Width

0.34"-0.43"

0.37"-0.4"

0.46"-0.55"

0.584"-0.68"

0.59"-0.68"

0.6"-0.67"

0.62"

0.709"-0.805"

0.71"-0.8"

0.72"-0.84"

0.73"-0.83"

0.76"

0.83"

0.83"-0.93"

0.84"-0.93"

0.84"-0.95"

0.85"-0.92"

0.96"-1.05"

1.02"-1.1"

1.02"-1.13"

1.08"

1.08"-1.18"

1.1"-1.17"

1.11"-1.2"

1.12"

1.17"

1.21"-1.3"

1.23"-1.33"

1.24"-1.33"

1.26"

1.29"-1.34"

1.29"-1.37"

1.33"

1.33"-1.43"

1.35"-1.42"

1.37"

1.42"-1.5"

1.49"-1.58"

1.59"-1.68"

1.73"

1.73"-1.83"

1.74"-1.83"

1.76"

1.83"

1.84"-1.93"

1.85"-1.92"

1.87"

1.99"-2.08"

2.09"-2.23"

2.24"-2.33"

2.37"-2.45"

2.42"-2.58"

2.49"-2.64"

2 1/2"

2.59"-2.68"

2.6"-2.67"

2.76"-2.84"

3.15"-3.26"

3.33"-3.43"

3.44"-3.62"

3 1/2"

3.52"-3.76"

3.78"-3.86"

4.34"-4.51"

4.48"-4.73"

4 1/2"

5.48"-5.73"

5 1/2"

22-23mm

24-27mm

30-32mm

32-35mm

42-46mm

	Head Length Head Length

	For Connection Type For Connection Type

	For OD For OD

0.053" to 0.12"

1/16" to 1/8"

0.079" to 0.15"

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 5/16"

1/4" to 1/2"

0.298" to 0.365"

5/16" to 3/8"

0.327" to 0.394"

0.356" to 0.422"

3/8" to 7/16"

3/8" to 7/8"

3/8" to 1"

0.385" to 0.451"

0.409" to 0.485"

0.468" to 0.545"

0.487" to 0.568"

1/2" to 9/16"

0.518" to 0.605"

0.613" to 0.693"

5/8" to 11/16"

21/32" to 1 3/8"

0.663" to 0.761"

0.687" to 0.785"

0.74" to 0.849"

3/4" to 13/16"

0.753" to 0.868"

7/8" to 15/16"

7/8" to 1 3/8"

7/8" to 2 1/4"

0.893"

0.901" to 1.027"

0.933" to 1.083"

1" to 1 1/16"

1 1/32" to 2 5/32"

1 1/16" to 1 1/8"

1.085" to 1.358"

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 3/8" 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 5"

1 1/2" to 8"

1.568" to 1.688"

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"

1.841"

1 7/8"

1 7/8" to 1 15/16"

1.953" to 2.085"

2" to 2 1/16"

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"

2 1/4" to 2 5/16"

2 1/4" to 11"

2.313"

2.333" to 2.54"

2 3/8" to 2 7/16"

2.395" to 2.688"

2 1/2"

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"

2 3/4" to 2 13/16"

2.787" to 2.918"

2.792"

2 7/8"

2 7/8" to 16"

2.912" to 3.175"

3" to 3 1/16"

3.02" to 3.3"

3 1/8" to 3 3/16"

3.2" to 3.492"

3 1/4"

3 1/4" to 3 5/16"

3.41" to 3.54"

3.411"

3.48" to 3.66"

3 1/2"

3 1/2" to 3 9/16"

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 1/8"

4.29" to 4.54"

4.37" to 4.62"

4 3/8" to 24"

4.412"

4 3/4"

4 3/4" to 4 13/16"

4.92" to 5.1"

5.21" to 5.37"

5.49" to 5.67"

5 1/2"

5.92" to 6.1"

6 3/16"

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

	Connection Style Connection Style

	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

View catalog pages (91)

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2,605 Products

Round Plugs

Snap-In Round Plugs

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

Round Plugs

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

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.

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.

Antistatic Round Plugs

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

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.

Threaded Round Plugs for NPT Pipe

Protect internally threaded NPT connections 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.

Threaded Round Plugs
for Straight-Thread Pipe

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

Threaded Round Plugs for BSPT Pipe

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

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.

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.

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.

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.

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.

Tapered Plugs

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.

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.

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.

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.

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.

Square Plugs

Snap-In Square Plugs

Flexible ridges or straps hold these plugs in place.

Push-In Square Plugs

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

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.

Rectangular Plugs

Snap-In Rectangular Plugs

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

Push-In Rectangular Plugs

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

Panel Plugs

Plastic Snap-In Panel Plugs

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

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.

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.

Ethernet Port Plugs

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

Caps

Round Caps

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

Heavy Duty Round Caps

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

Domed Round Caps

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

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.

Sure-Grip Round Caps

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

Hanging Round Caps

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

Chemical-Resistant Round Caps

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

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.

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.

Food-Grade Round Caps

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

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.

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.

Rectangular Caps

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

Corner Caps

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

Angle Caps

Place these flexible vinyl caps over the ends of your angle iron 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.

Threaded Caps

Protect externally threaded components from contaminants during fabrication and storage.

Tear-Tab Caps

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

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.

Squeeze Top Caps

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

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.

Stretchable Sealing Caps

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

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.

Flexible Pull-Tab Caps

Slide these flexible vinyl caps on and they conform 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.

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.

Fastener Caps

Hex Nut Caps

Sized to fit hex nuts, these caps snap on for a tight hold and provide protection from corrosion.

Screw Caps

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

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

Adhesive-Back Flange Caps

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

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.

USB Caps

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

Bearing Caps

Cover standard or flange-mount bearings to protect personnel from injury and keep contaminants out.

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.

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.

Plastic Pipe and Pipe Fittings

Thick-Wall Plastic
Pipe Fittings for Water

Connect these fittings to thick-wall plastic pipe—they have thicker, stronger walls than standard-wall fittings, so they can handle heavy duty industrial plumbing and water supply applications, such as water processing, waste water treatment, and irrigation. They can withstand pressures up to 900 psi.

Thick-Wall Plastic Pipe
Flanges for Water

Bolt two same-size flanges together with a gasket to create an access point within a line. They are also known as Class 150 flanges. They have thick, strong walls to handle heavy duty industrial plumbing and water supply applications, such as water processing, waste water treatment, and irrigation.

Standard-Wall Plastic
Pipe Fittings for Water

Connect these fittings to standard-wall plastic pipe for use in low- to medium-pressure applications up to 750 psi.They are the industry standard for residential and commercial plumbing and water supply applications.

High-Pressure Barbed Plastic
Pipe Fittings for Water

Use for pressures up to 200 psi. Also known as insert fittings, these slide into semi-flexible plastic pipe and secure with a clamp.

CPVC Pipe Fittings for Hot Water

Connect to CPVC pipe for use in high-temperature plumbing and water supply applications up to 200° F.

CPVC Pipe Flanges for Hot Water

Bolt two same-size flanges together with a gasket to create an access point within a line. They are also known as Class 150 flanges. Use in high-temperature plumbing and water supply applications up to 200° F.

Plastic Pipe Fittings for Gasoline

Use these plastic fittings to connect gasoline fuel lines to machines and equipment. They have excellent corrosion resistance as well as high strength and impact resistance.

Plastic Pipe Fittings for Oil

Made of corrosion-resistant plastic, these fittings won’t deteriorate when used in oil applications. They have high strength and impact resistance.

UV-Resistant Polypropylene
Pipe Fittings for Chemicals

Made of polypropylene, these fittings won’t deteriorate when exposed to the damaging effects of ultraviolet light and are suitable to use outdoors. They have the chemical resistance to withstand acids, solvents, and other harsh substances.

UV-Resistant Polypropylene
Pipe Flanges for Chemicals

Use these polypropylene flanges in outdoor environments—they resist the damaging effects of ultraviolet light. They have the chemical resistance to stand up to acids, solvents, and other harsh substances. Bolt two same-size flanges together with a gasket to create an access point within a line. Flanges are also known as Class 150 flanges.

Easy-Access UV-Resistant
Polypropylene Pipe
Fittings for Chemicals

Also known as manifold flange fittings, these have a clamp-together design that lets you access your line for routine maintenance. Fittings resist acids, solvents, and other harsh chemicals. They won’t deteriorate when exposed to the damaging effects of ultraviolet light, so they’re suitable for outdoor use.

High-Temperature PTFE
Pipe Fittings for Chemicals

Extreme temperatures are no problem for these fittings—they’re made of PTFE, so they can withstand a wider temperature range than any of our other plastic pipe fittings for chemicals. They are commonly used in high-purity chemical flow processes, such as semiconductor and clean room applications.

Crack-Resistant PFA Pipe
Fittings for Chemicals

Not only do these PFA fittings have the chemical resistance to handle acid and salt water, they also have better crack resistance than other plastic pipe fittings for chemicals. They are commonly used in high-purity chemical flow processes, such as semiconductor and clean room applications.

Fiberglass Pipe Flanges
for Corrosive Chemicals

Flanges have excellent corrosion resistance to handle a wide range of acids and other highly-corrosive chemicals. Use in metal surface treating applications, plating solution lines, and other chemical process applications. They are reinforced with fiberglass layers for better strength and durability than any of our other pipe flanges for chemicals. Bolt two same-size flanges together with a gasket to create an access point within a line.

Drain, Waste, and Vent ABS
Pipe Fittings for Chemicals

These fittings are an economical option for chemical waste systems. Fittings are ABS plastic, which has excellent strength and impact resistance and good chemical resistance.

Plastic Pipe Fitting Plugs
for Food and Beverage

Plugs are made from FDA listed materials, so they are suitable for food and beverage applications and won't impart tastes or odors to your product.

Aboveground Standard-Wall
PVC Pipe Fittings for
Drain, Waste, and Vent

These Schedule 40 fittings are the industry standard for gravity-flow drain, waste, and vent (DWV) applications.

Underground PVC Pipe Fittings
for Drain, Waste, and Vent

With thinner walls than Schedule 40 fittings, these are lighter in weight and have more space on the inside for high-flow applications, such as underground gravity-flow sewer and storm drainage lines. They are also known as SDR 35 fittings.

Underground Snap-Lock
Polyethylene Pipe Fittings
for Drain, Waste, and Vent

The snap-together design allows you to quickly connect these fittings to pipe with no cement required. Fittings are typically used in gravity-flow drainage applications.

Tube Fittings for Plastic and Rubber Tubing

Push-to-Connect Tube Fittings for Air

Brass Push-to-Connect
Tube Fittings for Air

Made of brass, these fittings have good corrosion resistance.

Moisture-Resistant Push-to-Connect
Tube Fittings for Air and Water

These fittings won’t absorb moisture, so they’re good for water and high-humidity air applications.

Low-Temperature D.O.T.
Push-to-Connect Tube Fittings for Air

Use at pressures up to 150 psi.

Weld-Spatter-Resistant
Push-to-Connect Tube
Fittings for Air and Water

Designed for use in welding applications, these fittings are flame retardant.

Tight-Seal Plastic Barbed
Tube Fittings for Air and Water

Minimize leaks in your line—these fittings have a single barb that creates a smooth clamping surface for extra-tight connections.

Plastic Quick-Turn Tube
Couplings for Air and Water

Made of plastic, these couplings are lighter in weight than metal quick-turn couplings.

Plastic Quick-Disconnect Tube
Couplings for Air and Water

Lighter in weight than metal quick-disconnect couplings, these couplings are plastic.

Plastic Push-to-Connect
Tube Fittings for Chemicals

Also known as instant fittings, these chemical-resistant plastic fittings connect to tubing with a push, and an internal gripping ring and fluoroelastomer O-ring hold the tubing tight.

Quick-Turn Couplings for Plastic
and Rubber Tubing—Chemicals

Also known as luer lock couplings, these connect with a half turn so you can easily connect and disconnect your line. With no latch, they have a low-profile design that works well in small spaces. Use in low-pressure applications up to 45 psi.

Quick-Disconnect
Couplings for Plastic and
Rubber Tubing—Chemicals

Quick-disconnect couplings consist of a plug and a socket that join with a latch so you can easily connect and disconnect your line. Use in applications up to 120 psi.

Push-to-Connect Tube
Fittings for Drinking Water

These fittings keep their strength in moist environments and meet NSF/ANSI 61 for drinking water. Also known as instant fittings.

Push-to-Connect Tube
Fittings for Hot Drinking Water

Fittings can withstand temperatures up to 200° F.

Socket-Connect Fittings for
Plastic Tubing—Drinking Water

Use these nuts with brass compression fittings to create a seal on plastic tubing. They meet NSF/ANSI 61 for use with drinking water.

Push-to-Connect Fittings for Plastic
Tubing—Food and Beverage

Also known as instant fittings, they connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. Use in applications up to 150 psi.

Quick-Disconnect Tube
Couplings for Food and Beverage

These quick-disconnect couplings meet NSF/ANSI 169 for food equipment.

Quick-Clamp Fittings for Dairy

Push-to-Connect Fittings for
Plastic Tubing—High-Purity

Also known as instant fittings, they connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. Use in applications up to 140 psi.

Plastic Quick-Clamp Sanitary
Fittings for Stainless Steel Tubing

Hose Fittings

Plastic Cam-and-Groove
Hose Couplings for Water

Made of polypropylene, these cam-and-groove couplings are lighter in weight than metal cam-and-groove hose couplings.

Protective Plastic Plugs for
Cam-and-Groove Hose
Sockets for Water

Insert these caps into a cam-and-groove socket to protect the end of the coupling from damage. The attached handle allows you to easily maneuver hose.

Plastic Cam-and-Groove Hose
Couplings for Chemicals
and Petroleum

Couplings are plastic, which is lighter in weight than metal cam-and-groove hose couplings. They consist of a plug and a socket that connect and disconnect quickly. Use them if you need frequent access to a line. To connect, insert the plug into the socket and push the levers down.

Cam-and-Groove Hose
Couplings for Food and Beverage

Couplings are made of FDA listed materials, so they’re suitable for food and beverage applications and won’t impart tastes or odors to the product. They consist of a plug and a socket that connect and disconnect quickly. Use them if you need frequent access to a line. To connect, insert the plug into the socket and push the levers down.

Quick-Disconnect Plastic-Shape Hose
Couplings for Food and Beverage

Couplings are compatible with quick-disconnect Plastic-shape plugs and sockets. Made of FDA listed materials, they are designed for food and beverage applications and won’t impart tastes or odors to the product. They consist of a plug and a socket that connect and disconnect quickly so you can frequently access your line. Use at pressures up to 100 psi.

Quick-Disconnect Hose
Couplings for Chemicals

Also known as flush-face couplings and minimal-spill couplings, the plugs and sockets have a flat face, which allows them to mate close against each other, reducing fluid loss when connecting and disconnecting the line. Couplings consist of a plug and a socket that connect and disconnect quickly so you can frequently access your line.

Plastic Quick-Disconnect Hose
Couplings for Air and Water

Made of acetal, these couplings are lighter in weight than metal quick-disconnect couplings. Compatible with Plastic-shape plugs and sockets.

International Standard ISO B
Quick-Disconnect Hose
Couplings for Food and Beverage

These couplings are compatible with International Standard ISO Series B-shape plugs and sockets. They are made of FDA listed materials, so they’re suitable for food and beverage applications and won’t impart tastes or odors to the product. They consist of a plug and a socket that connect and disconnect quickly so you can frequently access your line. Use at pressures up to 220 psi.

Dust Caps and Plugs for
International Standard ISO
Minimal-Spill Quick-Disconnect
Hose Couplings for Hydraulic Fluid

Use these dust caps and plugs to keep contaminants out of your hose line.

Dust Caps and Plugs for Snap-Tite
H-Shape Quick-Disconnect Hose
Couplings for Hydraulic Fluid

Use these dust caps and plugs to keep contaminants out of your hose line.

Cam-and-Groove
Garden Hose Couplings

Couplings consist of a plug and a socket that connect more quickly than threaded garden hose couplings. To connect, insert the plug into the socket and press the levers down.

Expansion Plugs

Wing Nut Expansion Plugs

Twist the wing 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.

Deep-Reach Wing
Nut Expansion Plugs

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

Drum Plugs

Install these plugs into drum holes using a drum-plug wrench.

Drum Plug Gaskets

Add a gasket or replace one that's worn out to ensure a tight seal.

Enclosure Plugs and Vents

Corrosion-Resistant Washdown
Threaded Breather Vents

Rated NEMA 4X and IP66, these vents provide protection from washdowns, corrosion, and power jets of water.

Submersible Threaded Breather Vents

For the highest level of protection from water, these vents rated IP68 for protection from water submersion.

Snap-In Breather Vents

These vents have louvers with foam filters to keep out dust and falling liquids.

Corrosion-Resistant Washdown
Hole Plugs for Square Holes

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

Enclosure Drains

Mount these drains at the bottom of your enclosure to let moisture drip out and keep electronics dry.

Plumbing Fixtures and Drains

Stoppers for Sink Drains

Sink Drains

Floor Drain Plugs

Often used to prevent spills from going down your drain, these plugs resist oil and most chemicals. They are nonabsorbent, washable, and reusable.

Breather Vents

Protect against excess vacuum and pressure in cylinders, gear boxes, enclosures, manifolds, and tanks.

Breather Vents with Cap

Add a filling port to your hydraulic tank while protecting against excess pressure and vacuum.

Corrosion-Resistant Breather Vents

These breather vents withstand corrosion in damp environments.

Washdown Weather-Resistant
Breather Vents

These breather vents are rated NEMA 6 to withstand periodic submersion in water.

Moisture-Eliminating Breather Vents

Keep moisture, dirt, and debris from entering your oil reservoirs.

Spill-Control Drain Covers

Block grates and manholes to stop liquids from going in, or seal inactive drains to keep odors from leaking out.

Terms and Conditions and Privacy Policy

Round Plugs

Snap-In Round Plugs

Round Plugs

Conductive Round Plugs

Sealing Plugs

Antistatic Round Plugs

Threaded Round Plugsfor 37° Flared Tube

Threaded Round Plugs for NPT Pipe

High-Temperature RoundPlugs for NPT Pipe

Threaded Round Plugsfor Straight-Thread Pipe

Threaded Round Plugs for BSPT Pipe

Miniature Pull-Through Round Plugs

High-TemperaturePull-Through Round Plugs

Chemical-ResistantPull-Through Round Plugs

Flanged Pull-Through Round Plugs

Pull-Tab Round Plugs

Tapered Plugs

Hollow Tapered Plugs

Hollow Tapered Plug Assortments

Tapered Plugs

Miniature Tapered Plugs

Pull-Ring Tapered Plugs

Expandable 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

Square Plugs

Snap-In Square Plugs

Push-In Square Plugs

Domed Square Plugs

Rectangular Plugs

Snap-In Rectangular Plugs

Push-In Rectangular Plugs

Panel Plugs

Plastic Snap-In Panel Plugs

Vented Snap-In Panel Plugs

Locking Panel Plugs

Clear Locking Panel Plugs

Vented Locking Panel Plugs

Push-In Panel Plugs

Sealing Panel Plugs

Ethernet Port Plugs

Ethernet Port Plugs

Caps

Round Caps

Heavy Duty Round Caps

Domed Round Caps

Tethered Round Caps

Roll-Resistant Round Caps

Sure-Grip Round Caps

Hanging Round Caps

Chemical-Resistant Round Caps

Conductive Round Caps

Antistatic Round Caps

High-Temperature Round Caps

Food-Grade Round Caps

Tapered Caps

Tapered Cap Assortments

High-Temperature Tapered Caps

Square Caps

Heavy Duty Square Caps

Rectangular Caps

Corner Caps

Angle Caps

Heavy Duty Angle Caps

Threaded Caps

Tear-Tab Caps

Propane Tank Tear-Tab Caps

Squeeze Top Caps

Heat-Shrink Round Caps

Stretchable Sealing Caps

Stretchable Elastic Caps

Flexible Pull-Tab Caps

Rigid Pull-Tab Caps

High-Visibility Pull-Tab Caps

Fastener Caps

Threaded Round Plugs
for 37° Flared Tube

High-Temperature Round
Plugs for NPT Pipe

Threaded Round Plugs
for Straight-Thread Pipe

High-Temperature
Pull-Through Round Plugs

Chemical-Resistant
Pull-Through Round Plugs

Hollow High-Temperature
Tapered Plugs

Miniature High-Temperature
Tapered Plugs

Expandable High-Temperature
Tapered Plugs

Thick-Wall Plastic
Pipe Fittings for Water

Thick-Wall Plastic Pipe
Flanges for Water

Standard-Wall Plastic
Pipe Fittings for Water

High-Pressure Barbed Plastic
Pipe Fittings for Water

UV-Resistant Polypropylene
Pipe Fittings for Chemicals

UV-Resistant Polypropylene
Pipe Flanges for Chemicals

Easy-Access UV-Resistant
Polypropylene Pipe
Fittings for Chemicals

High-Temperature PTFE
Pipe Fittings for Chemicals

Crack-Resistant PFA Pipe
Fittings for Chemicals

Fiberglass Pipe Flanges
for Corrosive Chemicals

Drain, Waste, and Vent ABS
Pipe Fittings for Chemicals

Plastic Pipe Fitting Plugs
for Food and Beverage

Aboveground Standard-Wall
PVC Pipe Fittings for
Drain, Waste, and Vent

Underground PVC Pipe Fittings
for Drain, Waste, and Vent

Underground Snap-Lock
Polyethylene Pipe Fittings
for Drain, Waste, and Vent

Brass Push-to-Connect
Tube Fittings for Air

Moisture-Resistant Push-to-Connect
Tube Fittings for Air and Water

Low-Temperature D.O.T.
Push-to-Connect Tube Fittings for Air

Weld-Spatter-Resistant
Push-to-Connect Tube
Fittings for Air and Water

Tight-Seal Plastic Barbed
Tube Fittings for Air and Water

Plastic Quick-Turn Tube
Couplings for Air and Water

Plastic Quick-Disconnect Tube
Couplings for Air and Water

Plastic Push-to-Connect
Tube Fittings for Chemicals

Quick-Turn Couplings for Plastic
and Rubber Tubing—Chemicals

Quick-Disconnect
Couplings for Plastic and
Rubber Tubing—Chemicals

Push-to-Connect Tube
Fittings for Drinking Water

Push-to-Connect Tube
Fittings for Hot Drinking Water

Socket-Connect Fittings for
Plastic Tubing—Drinking Water

Push-to-Connect Fittings for Plastic
Tubing—Food and Beverage

Quick-Disconnect Tube
Couplings for Food and Beverage

Push-to-Connect Fittings for
Plastic Tubing—High-Purity

Plastic Quick-Clamp Sanitary
Fittings for Stainless Steel Tubing

Plastic Quick-Clamp Sanitary
Fittings for Stainless Steel Tubing

Plastic Cam-and-Groove
Hose Couplings for Water

Protective Plastic Plugs for
Cam-and-Groove Hose
Sockets for Water

Plastic Cam-and-Groove Hose
Couplings for Chemicals
and Petroleum

Cam-and-Groove Hose
Couplings for Food and Beverage

Quick-Disconnect Plastic-Shape Hose
Couplings for Food and Beverage

Quick-Disconnect Hose
Couplings for Chemicals

Plastic Quick-Disconnect Hose
Couplings for Air and Water

International Standard ISO B
Quick-Disconnect Hose
Couplings for Food and Beverage

Dust Caps and Plugs for
International Standard ISO
Minimal-Spill Quick-Disconnect
Hose Couplings for Hydraulic Fluid

Dust Caps and Plugs for Snap-Tite
H-Shape Quick-Disconnect Hose
Couplings for Hydraulic Fluid