M20 Cable Glands | McMaster-Carr

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	System of Measurement System of Measurement

Metric

	Thread Size Thread Size	Show

M20

	Thread Size Thread Size	Hide

	Thread Type Thread Type

Metric

	Material Material

	For Cord OD Range For Cord OD Range

	For Knockout Trade Size For Knockout Trade Size

M20

	Cord Holding Type Cord Holding Type


Bushing	Screw-Down Clamp

	Shape Shape


Straight	90° Elbow

	For Minimum Cord OD For Minimum Cord OD

	Environment Environment

Corrosive

Damp

Dusty

High-
Pressure
Washdown

	Knockout Connection Type Knockout Connection Type

	Threaded

	Color Color

	Black
	Gray
	White

	Environmental Rating Environmental Rating

	For Cord Shape For Cord Shape

Round

Flat

	Specifications Met Specifications Met

	Mounting Location Mounting Location

	Knockout

	Flexibility Flexibility

Continuous Flex

Rigid

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

	Bushing Material Bushing Material

Rubber

Plastic

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

DFARS Specialty Metals
COTS-Exempt

	For Number of Inserts For Number of Inserts

	Component Component

Housing

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30 Products

Plastic Submersible Cord Grips

Able to resist most chemicals and withstand use underwater, these nylon grips are rated IP68 for protection from dusty environments and prolonged submersion. A rubber bushing and O-ring create a tight seal to prevent liquid from entering the connection. All are CE marked and TUV Rheinland certified, which means they meet European safety standards. Grips with UL certifications meet American safety standards, while those with C-UL and CSA certifications meet Canadian safety standards. Some also meet standards for marine vessels classed by DNV-GL.

Grips with metric threads meet IP69 for protection from high-pressure washdowns.

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

							Each
For Cord OD	For Knockout Trade Size	Temp. Range, °F	Features	Environmental Rating	Specifications Met		1-9	10-Up
Metric Threads
0.15"-0.39"	M20	0° to 175°	Nylon Plastic Locknut, Rubber O-Ring	NEMA 6, NEMA 12, IP66, IP68, IP69	UL Listed, C-UL Listed, CE Marked, DNV-GL Type Approved, TUV Rheinland Certified, VDE Certified	0000000	00000	00000
0.28"-0.51"	M20	0° to 175°	Nylon Plastic Locknut, Rubber O-Ring	NEMA 12, IP66, IP68, IP69	UL Listed, C-UL Listed, CSA Certified, CE Marked, DNV-GL Type Approved, TUV Rheinland Certified, VDE Certified	0000000	0000	0000

High-Temperature Plastic Submersible Cord Grips

Made of PVDF, these grips are able to withstand temperatures up to 300° F and are corrosion- and chemical-resistant. Grips are rated NEMA 12 for protection from splashing oil and coolant as well as IP68 and NEMA 6 for protection from continuous submersion. They’re also rated IP69K and NEMA 4X, which means in addition to being submersible, they withstand high-pressure, high-temperature washdowns and can be dunked in corrosive liquids without any affect. A rubber bushing and O-ring create a tight seal to prevent liquid from entering the connection.

Metric Threads
For Cord OD	For Knockout Trade Size	Temp. Range, °F	Features	Environmental Rating	Specifications Met		Each
0.2"-0.35"	M20	-30° to 300°	Nickel-Plated Brass Locknut, Rubber O-Ring	IP68, IP69K, NEMA 4X, NEMA 6, NEMA 12	UL Listed, CSA Certified, UL 94 V-0	0000000	000000
0.24"-0.47"	M20	-30° to 300°	Nickel-Plated Brass Locknut, Rubber O-Ring	IP68, IP69K, NEMA 4X, NEMA 6, NEMA 12	UL Listed, CSA Certified, UL 94 V-0	0000000	00000

Continuous-Flex Plastic Submersible Cord Grips

These grips have an extension that provides extra support for moving cables and prevents kinking for longer cable life. Grips are rated IP68 and 69K for protection from continuous submersion and high-pressure, high-temperature jets of water. They are also rated NEMA 4X, 6, and 12 for indoor and outdoor protection against corrosion, water projected from a hose, and dripping oils and lubricants. A rubber bushing and O-ring create a tight seal to prevent liquid from entering the connection.

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

Metric Threads
For Cord OD	For Knockout Trade Size	Thread Size	Material	Temp. Range, °F	Features	Environmental Rating	Specifications Met		Each
0.2"-0.35"	M20	M20	Black Nylon Plastic	-20° to 210°	Nylon Plastic Locknut, Rubber O-Ring	NEMA 4X, NEMA 6, NEMA 12, IP68, IP69K	UL Listed, UL 94 V-0, UL 746C f1, CSA Certified	00000000	00000
0.24"-0.47"	M20	M20	Black Nylon Plastic	-20° to 210°	Nylon Plastic Locknut, Rubber O-Ring	NEMA 4X, NEMA 6, NEMA 12, IP68, IP69K	UL Listed, UL 94 V-0, UL 746C f1, CSA Certified	00000000	0000
0.39"-0.55"	M20	M20	Black Nylon Plastic	-20° to 210°	Nylon Plastic Locknut, Rubber O-Ring	NEMA 4X, NEMA 6, NEMA 12, IP68, IP69K	UL Listed, UL 94 V-0, UL 746C f1, CSA Certified	00000000	0000

90° Elbow Continuous-Flex Plastic Submersible Cord Grips

Cord Grip Shown Open

Cord Grip

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

Metric Threads
For Cord OD	For Knockout Trade Size	Thread Size	Material	Temp. Range, °F	Features	Environmental Rating	Specifications Met		Each
0.2"-0.35"	M20	M20	Black Nylon Plastic	-20° to 210°	Nylon Plastic Locknut, Rubber O-Ring	IP68, IP69K, NEMA 12, NEMA 4X, NEMA 6	CSA Certified, UL 746C f1, UL 94 V-0, UL Listed	0000000	000000
0.24"-0.47"	M20	M20	Black Nylon Plastic	-20° to 210°	Nylon Plastic Locknut, Rubber O-Ring	IP68, IP69K, NEMA 12, NEMA 4X, NEMA 6	CSA Certified, UL 746C f1, UL 94 V-0, UL Listed	0000000	00000

90° Elbow Plastic Submersible Cord Grips

Able to resist most chemicals and withstand use underwater, these nylon grips are rated IP68 and 69K for protection from continuous submersion and high-pressure, high-temperature jets of water. They are also rated NEMA 4X, 6, and 12 for indoor and outdoor protection against corrosion, water projected from a hose, and dripping oils and lubricants. A rubber bushing and O-ring create a tight seal to prevent liquid from entering the connection. All meet UL 746C f1, so they’re UV resistant and can be used in direct sunlight, as well as UL 94 V-0, which means they’ll self-extinguish within 10 seconds of catching fire and won’t spread flames by dripping. UL recognized, UL listed, and CSA certified, they meet U.S. and Canadian safety standards.

Metric Threads are also VDE certified, meaning they meet European safety standards.

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

Metric Threads
For Cord OD	For Knockout Trade Size	Material	Temp. Range, °F	Features	Environmental Rating	Specifications Met		Each
0.2"-0.35"	M20	Black Nylon Plastic	-20° to 210°	Nylon Plastic Locknut, Rubber O-Ring	IP68, IP69K, NEMA 4X, NEMA 6, NEMA 12	UL Recognized Component, UL Listed, UL 94 V-0, UL 746C f1, CSA Certified, VDE Certified	0000000	000000
0.24"-0.47"	M20	Black Nylon Plastic	-20° to 210°	Nylon Plastic Locknut, Rubber O-Ring	IP68, IP69K, NEMA 4X, NEMA 6, NEMA 12	UL Recognized Component, UL Listed, UL 94 V-0, UL 746C f1, CSA Certified, VDE Certified	0000000	00000

Wraparound Plastic Submersible Cord Grips

Wrap the split gland of these grips around ethernet cables with an RJ45 connector or other already installed cables for a water-resistant seal with your enclosure. They’re rated IP68 and NEMA 6P, so they withstand use under water and protect electronics inside enclosures from moisture and harsh chemicals. All are made of nylon, making them corrosion and wear resistant. They relieve the strain on a cable when its pulled, extending the life of the cable.

When choosing a size, keep in mind that the sealing nut ID and body ID must be large enough for the end of your cord to fit through with the connector.

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

Metric Threads
For Cord OD	For Knockout Trade Size	Sealing Nut ID	Body ID	Temperature Range, °F	Features	Environmental Rating	Specifications Met		Each
0.21"-0.33"	M20	0.56"	0.54"	0° to 210°	Nylon Plastic Locknut, Split Gland	IP68, NEMA 6P	UL Recognized Component, C-UL Recognized Component, UL 94 V-2	00000000	00000

Plastic Submersible Cord Grips for Building Cable

A rubber bushing with an oval slot resists water and provides entry for building cable, which is also known as Romex type NM-B or type UF-B cable. They are rated IP68 and IP69K for protection from prolonged submersion and high-pressure, high-temperature jets of water. Made of nylon, these cord grips keep electrical assemblies lightweight. They also withstand chemicals and corrosive environments.

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

For Cord
Wd.	Thick.	For Knockout Trade Size	Material	Temp. Range, °F	Features	Environmental Rating	Specifications Met		Each
Metric Threads
0.45"	0.2"	M20	Black Nylon Plastic	-40° to 210° F	Rubber O-Ring, Nylon Plastic Locknut	IP68, IP69K, NEMA 4X, NEMA 6, NEMA 12	UL 746C f1, UL 94 V-0	0000000	00000
0.47"	0.28"	M20	Black Nylon Plastic	-40° to 210° F	Rubber O-Ring, Nylon Plastic Locknut	IP68, IP69K, NEMA 4X, NEMA 6, NEMA 12	UL 746C f1, UL 94 V-0	0000000	0000
0.55"	0.24"	M20	Black Nylon Plastic	-40° to 210° F	Rubber O-Ring, Nylon Plastic Locknut	IP68, IP69K, NEMA 4X, NEMA 6, NEMA 12	UL 746C f1, UL 94 V-0	0000000	0000

Vented Plastic Submersible Cord Grips

Keep moisture out of your enclosure while securing cords in wet environments. These grips vent air to equalize pressure between the inside and outside of your enclosure, preventing condensation from forming. They’re IP rated, which means you can safely submerse them for brief periods of time. They also seal out water from washdowns and dust.

Made of polyamide, these grips are lightweight and resist rusting. All relieve strain on your cord if it’s pulled to prolong its life.

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

Metric Threads
For Cord OD	For Knockout Trade Size	Thread Size	Material	Temperature Range, °F	Features	Environmental Rating	Specifications Met		Each
0.24"-0.47"	M20	M20	Black Polyamide Plastic	0° to 210°	Nylon Plastic Locknut, Rubber O-Ring	IP66, IP67	CSA Certified, CE Marked, CSA-US Certified, C-UL Recognized Component, DNV-GL Type Approved, UL Recognized Component, VDE Certified	00000000	000000

Flared Plastic Submersible Cord Grips

Secure cords installed through enclosures and panels in wet environments while protecting them against sharp bends. With a flared end that keeps cords from bending without limiting too much motion, these grips extend cord life. They’re good for cords used on handheld equipment. Made of polyamide, they stand up to corrosion and wear.

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

Metric Threads
For Cord OD	For Knockout Trade Size	Flare Diameter	Material	Temperature Range, °F	Features	Environmental Rating	Specifications Met		Each
0.19"-0.47"	M20	1 1/4"	Gray Polyamide Plastic	0° to 175°	Nylon Plastic Locknut, Rubber O-Ring	NEMA 12, IP68	UL Listed, C-UL Listed, CE Marked	0000000	00000

Screw-Down Sure-Grip Plastic Submersible Cord Grips

Tighten the screw-down clamp on these grips for superior pull-out resistance while relieving tension at connection points. Grips are rated IP68 for protection from prolonged submersion and IP69K for protection against high-pressure, high-temperature jets of water. A rubber bushing and O-ring create a tight seal to prevent liquid from entering the connection.

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

Metric Threads
For Cord OD	For Knockout Trade Size	Material	Temp. Range, °F	Features	Environmental Rating	Specifications Met		Each
0.24"-0.47"	M20	Black Nylon Plastic	0° to 155°	Rubber O-Ring, Nylon Plastic Locknut	IP68, IP69K, NEMA 4X, NEMA 6	UL 94 V-0, CE Marked, DNV-GL Type Approved	0000000	000000

Brass Submersible Cord Grips

PG and Metric Threads

Suitable for use in applications where cords are underwater—these grips are rated IP68 for protection from prolonged submersion. They are nickel plated for good corrosion resistance. A rubber bushing and O-ring create a tight seal to prevent liquid from entering your connection.

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

Metric Threads
For Cord OD	For Knockout Trade Size	Thread Size	Temp. Range, °F	Features	Environmental Rating	Specifications Met		Each
0.28"-0.51"	M20	M20	0° to 210°	Nickel-Plated Brass Locknut, Rubber O-Ring	IP68, NEMA 4X, NEMA 6, NEMA 12	CE Marked, DNV-GL Type Approved, VDE Certified	0000000	000000

Low-Temperature Brass Submersible Cord Grips

Keep cords from coming loose and seal water out of enclosures in extremely cold labs and storage areas. Thanks to their plastic bushing and rubber O-ring, these grips withstand temperatures as low as -75° F. They’re NEMA and IP rated, so you can safely submerse them under water, though only for short periods of time. They also stand up to dust, weather, washdowns, and oil. Nickel plated, they resist corrosion. All of these grips relieve strain on your cord if it’s pulled, prolonging its life.

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

Metric Threads
For Cord OD	For Knockout Trade Size	Temperature Range, °F	Features	Environmental Rating	Specifications Met		Each
0.2"-0.39"	M20	-75° to 210°	Nickel-Plated Brass Locknut, Rubber O-Ring	NEMA 4X, NEMA 6, NEMA 12, IP68	CE Marked, UL Recognized Component, VDE Certified	0000000	000000
0.28"-0.51"	M20	-75° to 210°	Nickel-Plated Brass Locknut, Rubber O-Ring	NEMA 4X, NEMA 6, NEMA 12, IP68	CE Marked, UL Recognized Component, VDE Certified	0000000	00000

Vented Brass Submersible Cord Grips

Secure cable installed through enclosures in wet environments while venting air to protect electronics from condensation. Vents on these cord grips equalize pressure between the inside and outside of an enclosure, preventing harmful moisture from forming. They are nickel-plated brass, so they resist corrosion. These cord grips are rated IP66 and IP67 for protection from dust, washdown, and temporary submersion.

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

Metric Threads
For Cord OD	For Knockout Trade Size	Thread Size	Temperature Range, °F	Features	Environmental Rating	Specifications Met		Each
0.24"-0.47"	M20	M20	0° to 210°	Nickel-Plated Brass Locknut, Rubber O-Ring	IP66, IP67	CSA Certified, CE Marked, CSA-US Certified, C-UL Recognized Component, DNV-GL Type Approved, UL Recognized Component, VDE Certified	0000000	000000

Stainless Steel Submersible Cord Grips

These stainless steel grips offer the most corrosion resistance of any of our submersible metal cord grips. Grips are rated IP68 for protection from prolonged submersion and IP69K for protection from high-pressure, high-temperature jets of water. A rubber bushing and O-ring create a tight seal to prevent liquid from entering your connection.

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

Metric Threads
For Cord OD	For Knockout Trade Size	Temp. Range, °F	Features	Environmental Rating	Specifications Met		Each
0.28"-0.47"	M20	-20° to 210°	Rubber O-Ring, Nickel-Plated Brass Locknut	IP68, IP69K, NEMA 4X, NEMA 6, NEMA 12	CE Marked, CSA Certified, UL Listed	0000000	000000
0.39"-0.55"	M20	-20° to 210°	Rubber O-Ring, Nickel-Plated Brass Locknut	IP68, IP69K, NEMA 4X, NEMA 6, NEMA 12	CE Marked, CSA Certified, UL Listed	0000000	00000

Aluminum Cord Grips

Locknut and O-Ring Kit

These cord grips are lightweight yet durable. As you tighten the grip, a nylon inner ring and lubricated rubber bushing secure your cable, prevent overtightening, and create a seal around the cord to block out liquid. The inner rings are colored by size so you can identify them at a glance.

Locknut and O-ring kits (sold separately) create liquid-tight seals between cord grips and enclosure knockouts. Rated NEMA 4X, NEMA 13, and IP66, the resulting seals provide indoor and outdoor protection against dust, corrosion, water projected from a hose, and oil/coolant spray. Each kit includes two locknuts and one or two O-rings.

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

Cord Grips
		Knockout Connection					Each		Locknut and O-Ring Kits
For Cord OD	For Knockout Trade Size	Type	Gender	Temperature Range, °F	Specifications Met		1-9	10-Up		Each
Metric Threads
0.25"-0.38"	M20	Threaded	Male	-30° to 225°	UL Listed	00000000	000000	000000	00000000	00000
0.31"-0.38"	M20	Threaded	Male	-30° to 225°	UL Listed	00000000	00000	00000	00000000	0000
0.38"-0.5"	M20	Threaded	Male	-30° to 225°	UL Listed	00000000	00000	00000	00000000	0000
0.5"-0.62"	M20	Threaded	Male	-30° to 225°	UL Listed	00000000	00000	00000	00000000	0000

Wraparound Multi-Cord Grips

Attach a cord grip to cable without removing connectors and rewiring. These cord grips have a two-piece design to fit around cables with connectors. Choose a housing and then select inserts (sold separately). Inserts have a slit, eliminating the need to thread cable through them.

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

Knockout-Mount Housings

Knockout-Mount Housing

Knockout-Mount Housing Shown Open

1 Small Insert

		For Insert
For No. of Inserts	For Knockout Trade Size	Ht.	Wd.	Size	Thread Type	For Max. Panel Thick.	Temp. Range, °F	Features	Environmental Rating	Specifications Met		Each
Gray Polycarbonate Plastic
1	M20	0.83"	0.83"	Small	Metric	0.31"	-20° to 190°	Nylon Plastic Locknut, Rubber Gasket	NEMA 12, IP54	UL Recognized Component, UL 94 V-0, C-UL Recognized Component, DNV-GL Type Approved	00000000	000000