PG-21 Cable Glands | McMaster-Carr

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	For Cord OD Range For Cord OD Range

0.20"-0.39"

0.40"-0.59"

0.60"-0.79"

	Thread Size Thread Size	Show

PG-21

	Thread Size Thread Size	Hide

	Thread Type Thread Type

	For Minimum Cord OD For Minimum Cord OD

	Material Material

	Cord Holding Type Cord Holding Type


Bushing	Screw-Down Clamp

	Shape Shape


Straight	90° Elbow

	For Knockout Trade Size For Knockout Trade Size

PG-21

	For Cord Shape For Cord Shape

Round

Flat

	Mounting Location Mounting Location

	Knockout

	Environment Environment

Corrosive

Damp

Dusty

High-
Pressure
Washdown

	Knockout Connection Type Knockout Connection Type

	Threaded

	Color Color

	Black
	Gray
	White

	Environmental Rating Environmental Rating

	Specifications Met Specifications Met

	Maximum Temperature Maximum Temperature

Less than 200° F

200° to 224° F

250° F or greater

	Minimum Temperature Minimum Temperature

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

DFARS Specialty Metals
COTS-Exempt

	Flexibility Flexibility

Continuous Flex

Rigid

	Bushing Material Bushing Material

Rubber

Plastic

	For Cord Width For Cord Width

0.55"

0.62"

	Finish Finish

Nickel Plated

	For Cord Thickness For Cord Thickness

0.22"

0.24"

0.28"

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21 Products

Compact Plastic Submersible Cord Grips

These grips are sized to fit in tight areas. They 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 the strongest hold and most secure seal around a cord, select cord grips with the smallest cord OD range that will work with your cord.

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

PG Threads
For Cord OD	For Knockout Trade Size	Thread Size	Material	Temp. Range, °F	Features	Environmental Rating	Specifications Met		Each
0.27"-0.47"	PG-21	PG-21	Black Nylon Plastic	-20° to 210°	Nylon Plastic Locknut, Rubber O-Ring	IP68, IP69K, NEMA 4X, NEMA 6, NEMA 12	UL Listed, UL Recognized Component, CSA Certified, UL 746C f1, UL 94 V-0, CE Marked	000000000	00000
0.35"-0.63"	PG-21	PG-21	Black Nylon Plastic	-20° to 210°	Nylon Plastic Locknut, Rubber O-Ring	IP68, IP69K, NEMA 4X, NEMA 6, NEMA 12	UL Listed, UL Recognized Component, CSA Certified, UL 746C f1, UL 94 V-0, CE Marked	000000000	0000
0.51"-0.71"	PG-21	PG-21	Black Nylon Plastic	-20° to 210°	Nylon Plastic Locknut, Rubber O-Ring	IP68, IP69K, NEMA 4X, NEMA 6, NEMA 12	UL Listed, UL Recognized Component, CSA Certified, UL 746C f1, UL 94 V-0, CE Marked	000000000	0000

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.

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
PG Threads
0.51"-0.71"	PG-21	0° to 175°	Nylon Plastic Locknut, Rubber O-Ring	NEMA 12, IP68	UL Listed, C-UL Listed, CSA Certified, CE Marked, TUV Rheinland Certified	0000000	00000	00000

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.

PG Threads
For Cord OD	For Knockout Trade Size	Temp. Range, °F	Features	Environmental Rating	Specifications Met		Each
0.35"-0.63"	PG-21	-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
0.51"-0.71"	PG-21	-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.

PG Threads
For Cord OD	For Knockout Trade Size	Thread Size	Material	Temp. Range, °F	Features	Environmental Rating	Specifications Met		Each
0.27"-0.47"	PG-21	PG-21	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	000000
0.35"-0.63"	PG-21	PG-21	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
0.51"-0.71"	PG-21	PG-21	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.

PG Threads
For Cord OD	For Knockout Trade Size	Thread Size	Material	Temp. Range, °F	Features	Environmental Rating	Specifications Met		Each
0.35"-0.63"	PG-21	PG-21	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
0.51"-0.71"	PG-21	PG-21	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

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.

PG 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"	PG-21	0.72"	0.71"	0° to 210°	Nylon Plastic Locknut, Split Gland	IP68, NEMA 6P	UL Recognized Component, C-UL Recognized Component, UL 94 V-2	00000000	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.

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

PG Threads
For Cord OD	For Knockout Trade Size	Material	Temp. Range, °F	Features	Environmental Rating	Specifications Met		Each
0.35"-0.63"	PG-21	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	0000000	000000
0.51"-0.71"	PG-21	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	0000000	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
PG Threads
0.55"	0.24"	PG-21	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
0.55"	0.28"	PG-21	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

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.

PG Threads
For Cord OD	For Knockout Trade Size	Flare Diameter	Material	Temperature Range, °F	Features	Environmental Rating	Specifications Met		Each
0.51"-0.71"	PG-21	1 5/8"	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.

PG Threads
For Cord OD	For Knockout Trade Size	Material	Temp. Range, °F	Features	Environmental Rating	Specifications Met		Each
0.51"-0.71"	PG-21	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	00000000	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.

PG Threads
For Cord OD	For Knockout Trade Size	Thread Size	Temp. Range, °F	Features	Environmental Rating	Specifications Met		Each
0.43"-0.71"	PG-21	PG-21	0° to 210°	Nickel-Plated Brass Locknut, Rubber O-Ring	IP68	CE Marked	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.

PG Threads
For Cord OD	For Knockout Trade Size	Temp. Range, °F	Features	Environmental Rating	Specifications Met		Each
0.51"-0.71"	PG-21	-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

Cord Grips for Flat Cable

Connect a single flat cable to a junction box.

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

For Cord
Wd.	Thick.	For Knockout Trade Size	Thread Type	Material	Cord Holding Type	Bushing Material	Temp. Range, °F	Features		Each
0.62"	0.22"	PG-21	PG	Aluminum	Bushing	Rubber	0° to 210° F°	Mounting Nut, Rubber Gasket	0000000	000000