Snap In Stoppers | McMaster-Carr

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	System of Measurement System of Measurement

Metric

	For Hole Diameter For Hole Diameter

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

	ID ID

	Flange Diameter Flange Diameter

	Mount Type Mount Type	Show

Snap In

	Mount Type Mount Type	Hide

	Material Material

Plastic

Rubber

	Shape Shape

	Round

	Overall Height Overall Height

	Environment Environment

Damp

Dusty

Submersible

	Color Color

	Black
	Gray

	Environmental Rating Environmental Rating

IP54

IP67

	For Use With For Use With

Wire, Cable, and Cords

	For Use Outdoors For Use Outdoors

Yes

	Maximum Temperature Maximum Temperature

Less than 250° F

	Minimum Temperature Minimum Temperature

-49° to 0° F

	Specifications Met Specifications Met

UL 94

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

RoHS Compliant

	Hardness Rating Hardness Rating

Medium

Medium Hard

	Hardness Hardness

Durometer 50A

Durometer 60A

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

DFARS Specialty Metals
COTS-Exempt

	For DIN Rail Height For DIN Rail Height

32 mm

35 mm

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

REACH Compliant

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39 Products

About Durometer Hardness Scales

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	Pkg. Qty.		Pkg.
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	10	0000000	000000
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	10	0000000	0000
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	10	0000000	0000
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	5	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	10	0000000	0000
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	5	0000000	00000
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	10	0000000	0000
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	5	0000000	00000
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	5	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	1	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	1	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	1	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	1	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	1	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	1	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	1	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	Pkg. Qty.		Pkg.
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	20	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	20	0000000	0000
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	20	0000000	0000
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	20	0000000	0000
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	20	0000000	00000
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	20	0000000	0000
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	20	0000000	00000
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	15	0000000	0000
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	15	0000000	00000
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	5	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	5	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	1	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	5	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	1	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	1	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	1	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	1	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	1	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	1	0000000	0000

Stops and Spacers for DIN Rails

Position terminal blocks, relays, and other components mounted to DIN rails with these stops and spacers. They are often used to create space between components for cooling, make wiring easier, and organize electrical panels and cabinets.

Stops stay fixed in place when you attach them to a DIN rail, keeping your components from sliding along the rail. Snap-on stops are quick to install or remove—just snap them onto the DIN rail.

Group markers mount onto stops—label them for easy identification.

Spacers separate and organize components into groups. They slide along DIN rails, so you can shift components without having to remove the spacers.

Stops

Snap-On Stop (DIN 3)

DIN 3 and 2 Rail

Stops
For DIN Rail										Group Markers
Trade Size	Ht., mm	Dp., mm	Ht., mm	Wd., mm	Dp., mm	Color	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
Snap On
Plastic
DIN 3	35	7.5, 15	41	6	35	Gray	5	0000000	00000	10	0000000	00000
DIN 3	35	15	41	10	35	Gray	10	0000000	00000	10	0000000	0000

Spacers

Snap-On Spacer (DIN 3 or 1)

DIN 1 Rail

DIN 3 and 2 Rail

For DIN Rail
Trade Size	Ht., mm	Dp., mm	Ht., mm	Wd., mm	Dp., mm	Color	Pkg. Qty.		Pkg.
Snap On
Plastic
DIN 3 DIN 1	35 32	15 7.5, 15	43	8	29	Black	10	0000000	00000

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About Durometer Hardness Scales

Wet-Location Snap-In Sealing Grommets

Stops and Spacers for DIN Rails