Drum Caps | McMaster-Carr

Filter by

Material

Pipe Size

Thread Type

Drum Plug Type

Color

Seal Material

Gender

Thread Size

Drum Capacity

Export Control Classification Number (ECCN)

REACH

RoHS

Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

Diameter

Drum Style

Maximum Temperature

Finish

Minimum Opening Pressure

For Use With

Lid Material

Maximum Pressure

Height

Gauge

Maximum Opening Pressure

4 psi

15 psi

Number of Top Openings

Closing Ring Type

91 Products

Drum Plugs


Style A	Style B	Style C	Style D	Style E

Style F	Style G	Style H	Style J

For installation and removal of these plugs, use drum-plug wrenches.

Polyethylene


Style A	Style B	Style C	Style D

Style D—Style D have a M64 thread size, which is also known as Buttress threads.

Drum Plug Caps—Drum-plug caps (sold separately) fit over drum plugs to provide dust protection as well as evidence of tampering. They have a breakaway seal and are for one-time use.

Drum Plugs												Drum Plug Caps			Drum Plug Crimpers
Style	Drum Plug Type	Color	Seal Material	Pipe/Thread Size	Gender	Max. Temp., ° F	Opening Pressure Range, psi	Features	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.		Each
A	Pressure Relief, Vacuum Relief	White	—	3/4 NPSM	Male	125	1 to 4	Vent	5	0000000	000000	10	0000000	00000	0000000	0000000
A	Standard	White	—	3/4 NPSM	Male	125	—	—	5	0000000	0000	10	0000000	0000	0000000	000000
B	Pressure Relief, Vacuum Relief	White	EPDM	2 NPSM	Male	125	1 to 4	Vent	5	0000000	00000	10	0000000	00000	0000000	000000
C	Standard	White	—	2 NPSM	Male	125	—	3/4 NPSM Faucet Knockout	5	0000000	00000	10	0000000	00000	0000000	000000
D	Standard	White	EPDM	M64 Metric	Male	125	—	3/4 NPSM Faucet Knockout	5	0000000	00000	10	0000000	00000	0000000	000000

Polypropylene


Style A	Style B	Style C	Style D

Style D—Style D have a M64 thread size, which is also known as Buttress threads.

Drum Plug Caps—Drum-plug caps (sold separately) fit over drum plugs to provide dust protection as well as evidence of tampering. They have a breakaway seal and are for one-time use.

Drum Plugs												Drum Plug Caps			Drum Plug Crimpers
Style	Drum Plug Type	Color	Seal Material	Pipe/Thread Size	Gender	Max. Temp., ° F	Opening Pressure Range, psi	Features	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.		Each
A	Pressure Relief, Vacuum Relief	Gray	—	3/4 NPSM	Male	125	1 to 4	Vent	5	0000000	000000	10	0000000	00000	0000000	0000000
A	Standard	Gray	—	3/4 NPSM	Male	125	—	—	5	0000000	00000	10	0000000	0000	0000000	000000
B	Pressure Relief, Vacuum Relief	White	EPDM	2 NPSM	Male	125	1 to 4	Vent	5	0000000	00000	10	0000000	00000	0000000	000000
C	Standard	Gray	—	2 NPSM	Male	125	—	3/4 NPSM Faucet Knockout	5	0000000	00000	10	0000000	00000	0000000	000000
D	Standard	White	—	M64 Metric	Male	125	—	3/4 NPSM Faucet Knockout	5	0000000	00000	10	0000000	00000	0000000	000000

Zinc-Plated Steel


Style E	Style F	Style G

Drum Plug Caps—Drum-plug caps (sold separately) fit over drum plugs to provide dust protection as well as evidence of tampering. They have a breakaway seal and are for one-time use.

Drum Plugs									Drum Plug Caps
Style	Drum Plug Type	Seal Material	Pipe/Thread Size	Gender	Opening Pressure Range, psi	Features		Each	Pkg. Qty.		Pkg.
E	Pressure Relief	Buna-N	3/4 NPSM	Male	0.5 to 4	Vent	0000000	00000	10	0000000	00000
E	Standard	Buna-N	3/4 NPSM	Male	—	—	000000	0000	10	0000000	0000
E	Vacuum Relief	Buna-N	3/4 NPSM	Male	0.5 to 4	Vent	0000000	0000	10	0000000	0000
F	Standard	Buna-N	2 NPSM	Male	—	—	0000000	0000	10	0000000	00000
G	Pressure Relief	Buna-N	2 NPSM	Male	13 to 15	Vent	0000000	00000	10	0000000	00000

316 Stainless Steel

Style H

Style J

PTFE Seal—Plugs with PTFE seals stand up to corrosive chemicals such as nitric acid.

Drum Plug Caps—Drum-plug caps (sold separately) fit over drum plugs to provide dust protection as well as evidence of tampering. They have a breakaway seal and are for one-time use.

Drum Plugs							Drum Plug Caps
Style	Drum Plug Type	Seal Material	Pipe/Thread Size	Gender		Each	Pkg. Qty.		Pkg.
H	Standard	Buna-N	3/4 NPT	Male	0000000	000000	10	0000000	00000
H	Standard	PTFE	3/4 NPSM	Male	00000000	00000	10	0000000	0000
J	Standard	Buna-N	2 NPT	Male	0000000	00000	10	0000000	00000
J	Standard	PTFE	2 NPSM	Male	00000000	00000	10	0000000	00000

Locking Drum Plug Caps


Male	Female

Prevent tampering with the contents of your drum while allowing access for filling.

	Gender	Dia.	Ht.	Lock Type	Lock Included	For Max. Shackle Dia.		Each
Iron



	2 NPT	Male	3 1/8"	2 1/4"	Padlockable	No	7/16"	0000000	000000


	2 NPT	Female	3 1/8"	1 3/8"	Padlockable	No	5/16"	0000000	00000
	3 NPT	Female	4 1/2"	2"	Padlockable	No	1/2"	0000000	00000
	4 NPT	Female	5 1/4"	2 1/4"	Padlockable	No	1/2"	0000000	000000

Drum Covers

Polyethylene

	Dia.	Thk.	Color	Max. Temp., ° F	Certification		Each
For Open-Head Drums with Nut-and-Bolt Closing Rings



	55	23 3/8"	0.04"	Black	175	—	0000000	000000


	55	23 3/8"	0.04"	Clear	175	—	0000000	00000
	55	23 1/2"	0.04"	Gray	175	C-UL Listed, UL Listed	0000000	00000


	For Open-Head Drums



			55	23 3/8"	0.04"	Gray	175	C-UL Listed, UL Listed	0000000	00000


			For Closed-Head Drums



					30	18 1/2"	0.04"	Gray	175	C-UL Listed, UL Listed	0000000	00000


					55	22 5/8"	0.04"	Gray	175	C-UL Listed, UL Listed	0000000	00000
					55	22 3/4"	0.04"	Black	175	—	0000000	00000
					55	22 3/4"	0.04"	Clear	175	—	0000000	00000

Galvanized Steel

Steel drum covers have a beaded rim to eliminate sharp edges.

	Dia.	Ga.		Each
For Open-Head Drums



	55	24 1/2"	26	0000000	000000


	For Closed-Head Drums



			55	23 7/8"	26	0000000	00000

Dust Covers for Drums

PVC—PVC covers resist chemicals better than polyethylene covers.

	Color	Thk., mil	Max. Temp., ° F	Pkg. Qty.		Pkg.
PVC



	55	White	8	Not Rated	1	000000	000000


	55	Clear	8	Not Rated	1	000000	0000


	Polyethylene



			55	Clear	4	175	5	000000	00000


			30	Clear	4	175	5	000000	00000

Drum Plug Gaskets

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

	Max. Temp., ° F	Pkg. Qty.		Pkg.
For 3/4 Pipe Size



	Polyethylene	350	50	0000000	000000


	Buna-N	450	100	0000000	00000
	EPDM	450	100	0000000	00000


	For 2 Pipe Size



			Polyethylene	350	50	0000000	00000


			Buna-N	450	50	0000000	00000
			EPDM	450	50	0000000	00000


			For M64 Thread Size



					EPDM	200	10	0000000	00000

Drum Locks

For Open-Head Drums

Locks for open-head drums replace the standard _5/8"-11 bolt on the closing ring and lock with a padlock (not included).

Lock Type	For Closing Ring Type	Material	Thread Size	Lock Included	For Max. Shackle Dia.		Each
Padlockable	Nut and Bolt	Brass	5/8"-11	No	5/16"	0000000	000000

For Closed-Head Drums


Padlockable	Keyed Lock

Padlockable—Padlockable locks for closed-head drums replace the plugs on _3/4" and 2" drum openings. Made of brass, they're non-sparking and resist corrosion in wet environments. Slide the bar through the hole in each plug and lock with a padlock (not included).

Keyed Lock—Keyed locks for closed-head drums fit over standard drum plugs and caps. Use the included keys to secure.

Lock Type	Material	Seal Material	For Pipe Size	Thread Type	Lock Included	For Max. Shackle Dia.	No. of Locks	No. of Keys Included		Each
Padlockable	Brass	Buna-N	3/4, 2	NPT	No	5/16"	—	—	0000000	0000000
Keyed	Zinc	—	3/4, 2	—	Yes	—	2	2	0000000	00000

Lockable Breather Vents with Cap

Secure access to vented openings in pipe and tanks—the cap can be locked to prevent tampering. These breather vents allow you to add a filling port to your hydraulic tank while protecting against excess pressure and vacuum. Use them to stop debris from entering your tank. Breather vents mount on top of standard tank openings with included hardware. Padlock is not included.

Flange Mount


Steel with 304 Stainless Steel Screen	Steel with Nylon Plastic Screen

	Max. Pressure	Ht.	For Use With	Cap Material	Screen Material	No. of Bolt Holes	Bolts Included	Removes Particle Size Down To, μm	For Max. Padlock Shackle Dia.		Each
Steel Body



	2 1/8"	Not Rated	5 1/8"	Air, Oil	Steel	304 Stainless Steel	6	Yes	10	3/8"	0000000	000000


	2 1/8"	Not Rated	5 1/8"	Air, Oil	Steel	304 Stainless Steel	6	Yes	40	3/8"	0000000	00000
	2 1/8"	Not Rated	6 1/8"	Air, Oil	Steel	Nylon	6	Yes	10	3/8"	0000000	00000
	2 1/8"	Not Rated	6 1/8"	Air, Oil	Steel	Nylon	6	Yes	40	3/8"	0000000	00000

Threaded NPT Male

Aluminum Body

	Max. Pressure	Max. Temp., ° F	Ht.	Dia.	For Use With	Cap Material	Screen Material	For Max. Padlock Shackle Dia.		Each
Aluminum Body and Fitting



	2	Not Rated	200	4 1/2"	5 5/8"	Air, Oil, Water	Aluminum	Stainless Steel	3/8"	0000000	000000

Steel Drum Lids


Lids with No Top Openings	Lids with 2 Top Openings

			Lid					Openings				Each
	For Drum Cap., gal.	Ga.	Type	Material	Color	Seal Material	Liner Material	Pipe Size	Gender	Includes		1-3	4-Up
Lids with No Top Openings



		55	16	Tight Fitting	Painted Steel	White	EPDM	—	—	—	—	0000000	000000	000000


		55	18	Tight Fitting	Painted Steel	White	EPDM	—	—	—	—	0000000	00000	00000
		30, 20	16	Tight Fitting	Painted Steel	White	EPDM	—	—	—	—	0000000	00000	00000
		30, 20	18	Tight Fitting	Painted Steel	White	EPDM	—	—	—	—	0000000	00000	00000
		16, 10	18	Tight Fitting	Painted Steel	White	EPDM	—	—	—	—	00000000	00000	00000
		16, 10	20	Tight Fitting	Painted Steel	White	EPDM	Epoxy	—	—	—	00000000	00000	00000


		Lids with 2 Top Openings



				55	18	Tight Fitting	Painted Steel	White	EPDM	—	2 NPSM, 3/4 NPSM	Female	Steel Plugs	00000000	00000	00000


				30, 20	18	Tight Fitting	Painted Steel	White	EPDM	—	2 NPSM, 3/4 NPSM	Female	Steel Plugs	0000000	00000	00000
				16, 10	20	Tight Fitting	Painted Steel	White	EPDM	—	2 NPSM, 3/4 NPSM	Female	Steel Plugs	00000000	00000	00000

Antistatic Dust Covers for Drums

An additive on these polyethylene covers prevents static charge from building up on the surface.

	Color	Thk., mil	Max. Temp., ° F	Performance	Surface Resistivity, ohm/sq.	Pkg. Qty.		Pkg.
Polyethylene



	55	Pink	4	175	Antistatic	1× 10^11	5	000000	000000


	30	Pink	4	175	Antistatic	1× 10^11	5	000000	00000

Gaskets for Steel and Stainless Steel Drums

			Each
For Drum Cap., gal.	Material		1-3	4-Up
65	EPDM	00000000	000000	000000
55	EPDM	0000000	00000	00000
30, 20	EPDM	0000000	00000	00000
16, 10	EPDM	00000000	0000	0000

Drum Locking Rings for Steel and Stainless Steel Drums


Nut-and-Bolt Closing Ring	Leverlock Closing Ring

				Each
	For Drum Cap., gal.	Closing Ring Material		1-3	4-Up
Nut-and-Bolt Closing Ring



		110, 65	Steel	00000000	000000	000000


		55	Steel	0000000	00000	00000
		30, 20	Steel	0000000	00000	00000
		16, 10	Steel	00000000	00000	00000


		Leverlock Closing Ring



				55	Steel	0000000	00000	00000


				30, 20	Steel	0000000	00000	00000
				16, 10	Steel	0000000	00000	00000

Stainless Steel Drum Lids


Lids with No Top Openings	Lids with 2 Top Openings

			Lid			Openings
	For Drum Cap., gal.	Ga.	Type	Material	Seal Material	Pipe Size	Gender	Includes		Each
Lids with No Top Openings



		55	16	Tight Fitting	304 Stainless Steel	EPDM	—	—	—	0000000	0000000


		30, 20	16	Tight Fitting	304 Stainless Steel	EPDM	—	—	—	0000000	000000
		16, 10, 8	20	Tight Fitting	304 Stainless Steel	EPDM	—	—	—	0000000	000000


		Lids with 2 Top Openings



				55	16	Tight Fitting	304 Stainless Steel	EPDM	2 BSPP, 3/4 BSPP	Female	Stainless Steel Plugs	0000000	000000


				55	16	Tight Fitting	316 Stainless Steel	EPDM	2 BSPP, 3/4 BSPP	Female	Stainless Steel Plugs	0000000	000000
				30	16	Tight Fitting	304 Stainless Steel	EPDM	2 BSPP, 3/4 BSPP	Female	Stainless Steel Plugs	0000000	000000
				30	16	Tight Fitting	316 Stainless Steel	EPDM	2 BSPP, 3/4 BSPP	Female	Stainless Steel Plugs	0000000	000000

Food and Beverage Gaskets for Sanitary Stainless Steel Drums

Seal lids onto sanitary drums. These gaskets are FDA compliant for direct contact with food.

For Drum Cap., gal.	Material	Food Industry Std.		Each
55, 40	EPDM	FDA Compliant 21 CFR 177.2600	00000000	000000
20	EPDM	FDA Compliant 21 CFR 177.2600	00000000	00000