Metric Hole Plugs | McMaster-Carr

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	System of Measurement System of Measurement

Metric

	Thread Type Thread Type

Metric

	Material Material

	Thread Size Thread Size

	Thread Pitch Thread Pitch

1 mm

1.5 mm

2 mm

	Environment Environment

High-Pressure Washdown

	Specifications Met Specifications Met

CSA

FDA Compliant

	Seal Material Seal Material

Rubber

	For Hole Diameter For Hole Diameter

	ID (C) ID (C)

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

	Head Diameter Head Diameter

	Environmental Rating Environmental Rating

	Plug Type Plug Type


Snap In	Screw In

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

DFARS Specialty Metals
COTS-Exempt

	Flange Diameter (D) Flange Diameter (D)

	For Shape For Shape


Round	Rectangle

	Color Color

	Black
	Gray
	Yellow

	Mount Type Mount Type

	Snap In

	For Use Outdoors For Use Outdoors

Yes

	Shape Shape

	Round

	For Use With For Use With

Wire, Cable, and Cords

Shafts

	Overall Height Overall Height

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74 Products

About Durometer Hardness Scales

Threaded Round Plugs for Straight-Thread Pipe

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

Nylon plugs resist chemicals better than aluminum plugs and are more wear resistant than polyethylene plugs. You can install them manually or with a hex-head wrench or socket.

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

Nylon with External Hex Drive

Nylon

Thread
Size	Pitch, mm	Ht., mm	Max. Temp., °F	Hardness	Color	Pkg. Qty.		Pkg.
M10	1	7	150°	Durometer 55D	Yellow	50	0000000	000000
M12	1.5	10	150°	Durometer 55D	Yellow	50	0000000	00000
M14	1.5	10	150°	Durometer 55D	Yellow	50	0000000	00000
M16	1.5	10	150°	Durometer 55D	Yellow	50	0000000	00000
M18	1.5	10	150°	Durometer 55D	Yellow	50	0000000	00000
M20	1.5	10	150°	Durometer 55D	Yellow	25	0000000	00000
M22	1.5	10	150°	Durometer 55D	Yellow	25	0000000	00000
M24	1.5	12	150°	Durometer 55D	Yellow	25	0000000	00000
M26	1.5	10	150°	Durometer 55D	Yellow	10	0000000	00000
M27	2	13	150°	Durometer 55D	Yellow	10	0000000	00000
M33	2	13	150°	Durometer 55D	Yellow	10	0000000	00000

Snap-In Rectangular Plugs

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

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

For Inside			Head
Lg.	Wd.	Ht.	Lg.	Wd.	Max. Temp., °F	Hardness	Color	Pkg. Qty.		Pkg.
Polyethylene Plastic
46mm-48mm	30mm-32mm	20mm	50mm	34mm	150°	Durometer 50D	Black	25	00000000	000000
54mm-57mm	24mm-27mm	15mm	60mm	30mm	150°	Durometer 50D	Black	25	00000000	00000
72mm-73mm	22mm-23mm	18mm	75mm	25mm	150°	Durometer 50D	Black	25	00000000	00000
72mm-75mm	32mm-35mm	24mm	80mm	40mm	150°	Durometer 50D	Black	10	00000000	0000
92mm-96mm	42mm-46mm	16mm	100mm	50mm	150°	Durometer 50D	Black	10	00000000	00000

Threaded Hole Plugs

PG and Metric

Close off unused threaded holes in enclosures and outlet boxes.

Hole plugs rated IP54 protect against dust and splashing water.

Metric
Thread Size	Thread Pitch, mm	Head Dia.	Material	Environmental Rating	Specifications Met		Each
M12	1.5	9/16"	Nickel-Plated Brass	IP54	CSA Certified, UL Listed	0000000	00000
M16	1.5	11/16"	Nickel-Plated Brass	IP54	CSA Certified, UL Listed	0000000	0000
M20	1.5	7/8"	Nickel-Plated Brass	IP54	CSA Certified, UL Listed	0000000	0000
M25	1.5	1 1/8"	Nickel-Plated Brass	IP54	CSA Certified, UL Listed	0000000	0000

Threaded Submersible Hole Plugs

Close off unused threaded holes to prevent water from entering your enclosures and outlet boxes. Plugs are rated IP68 for protection from water submersion.

Metric
Thread Size	Thread Pitch, mm	Head Dia.	Material	Environmental Rating	Specifications Met	Color		Each
M12	1.5	5/8"	Nylon Plastic	NEMA 4X; IP68	UL 94 V-2	Gray	0000000	00000
M16	1.5	13/16"	Nylon Plastic	NEMA 4X; IP68	UL 94 V-2	Gray	0000000	000
M20	1.5	1"	Nylon Plastic	NEMA 4X; IP68	UL 94 V-2	Gray	0000000	000

Sanitary Threaded Hole Plugs

Plug (Front View)

Plug (Back View)

FDA compliant for use near food, these plugs close off unused holes in equipment such as electrical enclosures to keep out debris and water. They have a smooth finish and round edges, leaving no crevices for contaminants to collect in. Made of 316L stainless steel, they won’t corrode from harsh cleaners. A silicone seal blocks out dust and liquid.

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

Thread
Size	Pitch, mm	Head Diameter, mm	Material	Seal Material	Environmental Rating	Specifications Met	Features		Each
Metric
M10	1.5	19.7	316L Stainless Steel	Silicone Rubber	IP66; IP69K	UL Listed, FDA Compliant 21 CFR 177.2600	Round Edges, Smooth Finish	00000000	00000

Wet-Location Snap-In Sealing Grommets

Snap these grommets into place to hold wire, cable, and cords in wet locations and form a seal against dust, debris, and water. Two flanges create a seal when pulled through holes in your enclosure, so you can install these grommets without tools. They are made of TPE rubber, which won’t break down under UV exposure. Rated UL 94 V-0, these grommets will stop burning within 10 seconds if ignited.

Grommets with an IP54 rating protect against dust and splashing water from all directions. IP67 rated grommets protect against dust and temporary submersion.

Add a cable tie to grommets with a cable tie attachment point to relieve strain and extend the life of your cable, wire, and cords. These grommets also have closed front sides, so they can be used as hole plugs.

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

Style A

For Style A

TPE Rubber
For Hole Diameter (A)	For Material Thickness (B)	ID (C)	Flange Diameter (D)	Overall Height (E)	Hardness	Hardness Rating	Temperature Range, °F	For Use Outdoors	Color	Environmental Rating	Specifications Met		Each
With Cable Tie Attachment Point
12 mm	1 mm-5 mm	3 mm-5 mm	19 mm	20.9 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP67	UL 94 V-0	0000000	00000
13 mm	1 mm-4 mm	3 mm-5 mm	20 mm	17 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP67	UL 94 V-0	0000000	000
16 mm	1 mm-4 mm	5 mm-7 mm	20 mm	19 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP67	UL 94 V-0	0000000	000
16 mm	1 mm-5 mm	5 mm-7 mm	23 mm	21.6 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP67	UL 94 V-0	0000000	0000
19 mm	1 mm-4 mm	7 mm-10 mm	24 mm	21 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP67	UL 94 V-0	0000000	000
20 mm	1 mm-5 mm	7 mm-10 mm	27 mm	24.3 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP67	UL 94 V-0	0000000	0000
23 mm	1 mm-4 mm	10 mm-14 mm	29 mm	23 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP67	UL 94 V-0	0000000	000
25 mm	1 mm-5 mm	10 mm-14 mm	32 mm	24.8 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP67	UL 94 V-0	0000000	0000
29 mm	1 mm-4 mm	14 mm-20 mm	34 mm	26 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP67	UL 94 V-0	0000000	0000
32 mm	1 mm-5 mm	14 mm-20 mm	39 mm	28.1 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP67	UL 94 V-0	0000000	0000
38 mm	1 mm-4 mm	20 mm-26 mm	46 mm	30 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP67	UL 94 V-0	0000000	0000
40 mm	1 mm-5 mm	20 mm-26 mm	46 mm	31.8 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP67	UL 94 V-0	0000000	0000
48 mm	1 mm-4 mm	26 mm-35 mm	57.5 mm	33 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP67	UL 94 V-0	0000000	0000
50 mm	1 mm-5 mm	26 mm-35 mm	57 mm	39.7 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP67	UL 94 V-0	0000000	0000
60 mm	1 mm-5 mm	30 mm-45 mm	69 mm	59.6 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP67	UL 94 V-0	0000000	0000
80 mm	1.2 mm-5.2 mm	40 mm-60 mm	89 mm	78.2 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP67	UL 94 V-0	0000000	0000

Style B

For Style B

TPE Rubber
For Hole Diameter (A)	For Material Thickness (B)	ID (C)	Flange Diameter (D)	Overall Height (E)	Hardness	Hardness Rating	Temperature Range, °F	For Use Outdoors	Color	Environmental Rating	Specifications Met		Each
12.2 mm	1 mm-2 mm	1 mm-9 mm	17 mm	7 mm	Durometer 50A	Medium	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	00000
15.5 mm	1 mm-2 mm	1 mm-9 mm	20 mm	7 mm	Durometer 50A	Medium	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	000
16.2 mm	1 mm-2 mm	1 mm-11 mm	21 mm	7 mm	Durometer 50A	Medium	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	000
18.5 mm	1 mm-2 mm	1 mm-11 mm	23 mm	7 mm	Durometer 50A	Medium	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	000
20.2 mm	1 mm-2 mm	1 mm-13.5 mm	25 mm	7 mm	Durometer 50A	Medium	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	000
20.5 mm	1 mm-2 mm	1 mm-13.5 mm	25 mm	7 mm	Durometer 50A	Medium	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	000
22.5 mm	1 mm-2 mm	1 mm-16 mm	28 mm	7 mm	Durometer 50A	Medium	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	000
25.2 mm	1 mm-2 mm	1 mm-16 mm	31 mm	7 mm	Durometer 50A	Medium	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	000
28 mm	1 mm-2 mm	1 mm-21 mm	35 mm	9 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	000
32.2 mm	1 mm-2 mm	1 mm-21 mm	40 mm	9 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	0000
37 mm	1 mm-2 mm	1 mm-29 mm	44 mm	10 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	0000
40.2 mm	1 mm-2 mm	1 mm-29 mm	48 mm	10 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	0000
47 mm	1.5 mm-3 mm	1 mm-36 mm	54 mm	12 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	0000
50.2 mm	1.5 mm-3 mm	1 mm-36 mm	58 mm	12 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	0000
60 mm	1.5 mm-3 mm	1 mm-48 mm	68 mm	12 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	0000
64 mm	1.5 mm-3 mm	1 mm-53 mm	75 mm	12 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	0000
70.2 mm	1.5 mm-3 mm	1 mm-53 mm	81 mm	12 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	0000
79 mm	1.5 mm-3 mm	1 mm-69 mm	90 mm	12 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	0000
80.2 mm	1.5 mm-3 mm	1 mm-69 mm	91 mm	12 mm	Durometer 60A	Medium Hard	-40° to 200°	Yes	Black	IP54	UL 94 V-0	0000000	0000

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. All of the grommets are split, which makes them easy to snap into place while also allowing them to expand if they heat up or absorb moisture. Made of plastic, they are chemical resistant and won't dry out and become brittle when exposed to UV rays. All have an extra-hard rating to withstand high levels of impact. They can be used outdoors.

Grommets with MDS reinforcement have added wear resistance.

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

Nylon Plastic with MDS Reinforcement
For Hole Dia. (A)	For Material Thick. (B)	ID (C)	Flange Dia. (D)	Flange Ht.	Overall Ht. (E)	Hardness Rating	Hardness	Temp. Range, °F	For Use Outdoors	Color		Each
4.2mm	1.45mm-2.34mm	3mm	4.8mm, 6mm	0.6mm	3.2mm	Extra Hard	Durometer 75D	-40° to 170°	Yes	Black	0000000	00000
4.2mm	2.87mm-3.13mm	3mm	4.8mm, 6mm	0.6mm	4.2mm	Extra Hard	Durometer 75D	-40° to 170°	Yes	Black	0000000	0000
5.2mm	1.45mm-2.34mm	4mm	5.9mm, 7mm	0.6mm	3.2mm	Extra Hard	Durometer 75D	-40° to 170°	Yes	Black	0000000	0000
5.2mm	2.87mm-3.13mm	4mm	5.9mm, 7mm	0.6mm	4.2mm	Extra Hard	Durometer 75D	-40° to 170°	Yes	Black	0000000	0000
6.2mm	1.45mm-2.34mm	5mm	6.8mm, 8mm	0.6mm	3.2mm	Extra Hard	Durometer 75D	-40° to 170°	Yes	Black	0000000	0000
6.2mm	2.87mm-3.13mm	5mm	6.8mm, 8mm	0.6mm	4.2mm	Extra Hard	Durometer 75D	-40° to 170°	Yes	Black	0000000	0000
7.2mm	1.45mm-2.34mm	6mm	7.8mm, 11mm	0.6mm	3.2mm	Extra Hard	Durometer 75D	-40° to 170°	Yes	Black	0000000	0000
7.2mm	2.87mm-3.13mm	6mm	7.8mm, 11mm	0.6mm	4.2mm	Extra Hard	Durometer 75D	-40° to 170°	Yes	Black	0000000	0000
9.6mm	1.45mm-2.34mm	8mm	10.4mm, 13mm	0.8mm	3.6mm	Extra Hard	Durometer 75D	-40° to 170°	Yes	Black	0000000	0000
9.6mm	2.87mm-3.13mm	8mm	10.4mm, 13mm	0.8mm	4.6mm	Extra Hard	Durometer 75D	-40° to 170°	Yes	Black	0000000	0000
10.6mm	1.45mm-2.34mm	9mm	11.4mm, 14mm	0.8mm	3.6mm	Extra Hard	Durometer 75D	-40° to 170°	Yes	Black	0000000	0000
11.6mm	1.45mm-2.34mm	10mm	12.4mm, 15mm	0.8mm	3.6mm	Extra Hard	Durometer 75D	-40° to 170°	Yes	Black	0000000	0000
11.6mm	2.87mm-3.13mm	10mm	12.4mm, 15mm	0.8mm	4.6mm	Extra Hard	Durometer 75D	-40° to 170°	Yes	Black	0000000	0000
13.6mm	1.45mm-2.34mm	12mm	14.4mm, 17mm	0.8mm	3.6mm	Extra Hard	Durometer 75D	-40° to 170°	Yes	Black	0000000	0000
13.6mm	2.87mm-3.13mm	12mm	14.4mm, 17mm	0.8mm	4.6mm	Extra Hard	Durometer 75D	-40° to 170°	Yes	Black	0000000	0000