Copper Plugs | McMaster-Carr

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	Type Type

	Cap		Plug

	Copper Tube Size Copper Tube Size

	Material Material	Show

Copper

	Material Material	Hide

	System of Measurement System of Measurement

Inch

Metric

	For Tube OD For Tube OD

	Shape Shape

	Cap/Plug

	Socket Connect Type Socket Connect Type


Solder	Press

	Length Length

	Connection Style Connection Style

	Socket Connect

	For Copper Tube Type For Copper Tube Type

	Connection Type Connection Type

	Tube

	For Tube Material For Tube Material

Copper

	For Use With For Use With

Drinking Water

	Specifications Met Specifications Met

	Gender Gender

Male

Female

	Maximum Temperature Maximum Temperature

100° to 249° F

250° to 499° F

	Minimum Temperature Minimum Temperature

0° F

32° F

Not Rated

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

DFARS Specialty Metals
COTS-Exempt

	Maximum Pressure Maximum Pressure

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

RoHS Compliant

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

REACH Compliant

	Environment Environment

Food and Beverage

	Number of Terminals Per Circuit Number of Terminals Per Circuit

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67 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

Temperature Range: 32° to 200° F

Solder these fittings to copper tubing or the tube end of another fitting for a permanent, leak-tight connection. They are also known as sweat fittings. Fittings have good corrosion resistance. To adhere to safety standards for drinking water systems, use fittings that meet NSF/ANSI 61 or EN 1057.

Copper tube size is the accepted designation of the copper tubing industry, not the actual tube OD.

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

Caps

For Use With: Drinking Water
Tubing: See table
Specifications Met: See table

Fittings that meet ASTM B379 comply with international standards for tube fitting specifications.

Copper Tube Size	For Tube OD	Material	Max. Pressure	For Copper Tube Type	Specifications Met		Each
1/8	1/4"	Copper	400 psi @ 72° F	K, M, L	ASME B16.22, MSS-SP104, NSF/ANSI 61	00000000	00000
1/4	3/8"	Copper	400 psi @ 72° F	K, M, L	ASME B16.22, MSS-SP104, NSF/ANSI 61	0000000	000
3/8	1/2"	Copper	400 psi @ 72° F	K, M, L	ASME B16.22, MSS-SP104, NSF/ANSI 61	0000000	000
1/2	5/8"	Copper	400 psi @ 72° F	K, M, L	ASME B16.22, MSS-SP104, NSF/ANSI 61	0000000	000
5/8	3/4"	Copper	400 psi @ 72° F	K, M, L	ASME B16.22, MSS-SP104, NSF/ANSI 61	00000000	000
3/4	7/8"	Copper	400 psi @ 72° F	K, M, L	ASME B16.22, MSS-SP104, NSF/ANSI 61	0000000	000
1	1 1/8"	Copper	400 psi @ 72° F	K, M, L	ASME B16.22, MSS-SP104, NSF/ANSI 61	0000000	0000
1 1/4	1 3/8"	Copper	400 psi @ 72° F	K, M, L	ASME B16.22, MSS-SP104, NSF/ANSI 61	0000000	0000
1 1/2	1 5/8"	Copper	400 psi @ 72° F	K, M, L	ASME B16.22, MSS-SP104, NSF/ANSI 61	0000000	0000
2	2 1/8"	Copper	300 psi @ 72° F	K, M, L	ASME B16.22, MSS-SP104, NSF/ANSI 61	0000000	0000
2 1/2	2 5/8"	Copper	300 psi @ 72° F	K, M, L	ASME B16.22, MSS-SP104, NSF/ANSI 61	00000000	00000
3	3 1/8"	Copper	300 psi @ 72° F	K, M, L	ASME B16.22, MSS-SP104, NSF/ANSI 61	00000000	00000
3 1/2	3 5/8"	Copper	300 psi @ 72° F	K, M, L	ASME B16.22, MSS-SP104, NSF/ANSI 61	00000000	00000
4	4 1/8"	Copper	200 psi @ 72° F	K, M, L	ASME B16.22, MSS-SP104, NSF/ANSI 61	00000000	00000
__	10mm	Copper	800 psi @ 72° F	M	ASTM B379, DVGW GW 8, EN 1057	00000000	0000
__	12mm	Copper	700 psi @ 72° F	M	ASTM B379, DVGW GW 8, EN 1057	00000000	0000
__	14mm	Copper	600 psi @ 72° F	M	ASTM B379, DVGW GW 8, EN 1057	00000000	0000

Plugs

For Use With: Drinking Water
Tubing: Use with K, M, L copper
Specifications Met: ASME B16.22, MSS-SP104, NSF/ANSI 61

Copper Tube Size	Tube OD	Material	Max. Pressure		Each
3/8	1/2"	Copper	400 psi @ 72° F	00000000	00000
1/2	5/8"	Copper	400 psi @ 72° F	00000000	0000
3/4	7/8"	Copper	400 psi @ 72° F	00000000	0000
1	1 1/8"	Copper	400 psi @ 72° F	00000000	0000

Press-Connect Fittings for Copper Tubing

For Use With: Drinking Water
Maximum Pressure: 200psi @ 72° F
Temperature Range: 0° to 250° F
Tubing: Use with K, M, L copper
Specifications Met: See table

Crimp these fittings to copper tubing with a crimping tool (sold separately). An O-ring on the inside of the fitting creates a leak-tight connection that doesn’t require heat or soldering. They are comparable to Viega ProPress fittings. Fittings have good corrosion resistance. They meet NSF/ANSI safety standards for use with drinking water systems.

Copper tube size is the accepted designation of the copper tubing industry, not the actual tube OD.

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

Caps

Copper Tube Size	For Tube OD	Lg.	Material	Specifications Met		Each
1/2	5/8"	59/64"	Copper	ASME B16.51, NSF/ANSI 61, UL 213	0000000	00000
3/4	7/8"	1 1/16"	Copper	ASME B16.51, NSF/ANSI 61, UL 213	0000000	00000
1	1 1/8"	1 7/64"	Copper	ASME B16.51, NSF/ANSI 61, UL 213	0000000	00000
1 1/4	1 3/8"	1 5/16"	Copper	ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213	00000000	00000
1 1/2	1 5/8"	1 5/8"	Copper	ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213	00000000	00000
2	2 1/8"	1 13/16"	Copper	ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213	00000000	00000
2 1/2	2 5/8"	2 7/64"	Copper	ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213	00000000	000000
3	3 1/8"	2 23/64"	Copper	ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213	00000000	000000
4	4 1/8"	2 49/64"	Copper	ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213	00000000	000000

Replacement O-Rings

For Copper Tube Size	For Tube OD	O-Ring Material		Each
1/2	5/8"	EPDM Rubber	0000000	00000
3/4	7/8"	EPDM Rubber	0000000	0000
1	1 1/8"	EPDM Rubber	0000000	0000
1 1/4	1 3/8"	EPDM Rubber	00000000	0000
1 1/2	1 5/8"	EPDM Rubber	00000000	0000
2	2 1/8"	EPDM Rubber	00000000	0000

Harsh Environment High-Current Distribution Bars

One Circuit with Stud Terminals

Two Circuits with Screw Terminals

One Circuit with Stud and Screw Terminals

Two Circuits with Stud and Screw Terminals

Protect connections against corrosion. These bars are tin-plated copper and have stainless steel terminals. Also known as bus bars, they serve as connection points between wires with ring or spade terminals. The underside is sealed, so the bars can be safely mounted to conductive surfaces.

Covers protect the top of the bar and prevent accidental contact with live circuits.

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

Distribution Bars
Current		Terminals						Mounting Holes					Covers
300V AC	48V DC	No. Per Circuit	Size	Lg.	Wd.	Ht.	Mounting Fasteners Included	Dia.	No. of	Specifications Met		Each		Each
Stud Terminals
1-Circuit Bars
100A	100A	4	No. 10	4 3/16"	7/8"	1 1/8"	No	0.21"	2	CE Marked	0000000	000000	0000000	00000
130A	150A	4	1/4"	5 7/8"	1 1/4"	1 1/2"	No	0.21"	2	CE Marked	0000000	00000	0000000	0000
250A	250A	4	5/16"	5 7/8"	1 1/2"	1 11/16"	No	0.21"	2	CE Marked	0000000	00000	0000000	00000
250A	250A	6	5/16"	7 3/4"	1 1/2"	1 11/16"	No	0.21"	2	CE Marked	000000	00000	0000000	00000

Distribution Bars
Current		Terminals						Mounting Holes					Covers
300V AC	48V DC	No. Per Circuit	Size	Lg.	Wd.	Ht.	Mounting Fasteners Included	Dia.	No. of	Specifications Met		Each		Each
Screw Terminals
2-Circuit Blocks
100A	100A	5	No. 8	3"	1 13/16"	9/16"	No	0.21"	2	CE Marked	0000000	000000	0000000	000000
100A	100A	10	No. 8	5 1/16"	1 13/16"	9/16"	No	0.21"	2	CE Marked	0000000	00000	0000000	00000

Distribution Bars
Current		Stud Terminals		Screw Terminals						Mounting Holes					Covers
300V AC	48V DC	No. Per Circuit	Size	No. Per Circuit	Size	Lg.	Wd.	Ht.	Mounting Fasteners Included	Dia.	No. of	Specifications Met		Each		Each
Stud and Screw Terminals
1-Circuit Bars
100A	100A	2	No. 10	5	No. 8	4 3/16"	7/8"	1 1/8"	No	0.21"	2	CE Marked	0000000	000000	0000000	00000
130A	150A	2	1/4"	10	No. 8	5 7/8"	1 1/4"	1 1/2"	No	0.21"	2	CE Marked	0000000	00000	0000000	0000
130A	150A	2	1/4"	20	No. 8	9 1/8"	1 1/4"	1 1/2"	No	0.21"	2	CE Marked	0000000	00000	0000000	0000
250A	250A	2	5/16"	6	No. 10	5 7/8"	1 1/2"	1 11/16"	No	0.21"	2	CE Marked	000000	00000	0000000	00000
250A	250A	2	5/16"	12	No. 10	7 3/4"	1 1/2"	1 11/16"	No	0.21"	2	CE Marked	0000000	00000	0000000	00000
545A	600A	4	3/8"	4	No. 8	7"	2"	2"	No	0.26"	4	CE Marked	000000	000000	0000000	00000
545A	600A	8	3/8"	4	No. 8	11 3/8"	2"	2"	No	0.39"	4	CE Marked	000000	000000	000000	00
2-Circuit Bars
130A	150A	2	1/4"	5	No. 10	4 7/8"	2 9/16"	1 1/4"	No	0.21"	2	CE Marked	0000000	00000	000000	00

Modular Distribution Bars

Build your own distribution system for neutral and grounding applications by adding terminal blocks to these bars. Slide blocks onto the bar, also known as a bus bar, and then attach mounting brackets to the bar. All wires make contact with the bar, distributing the current among the terminal blocks.

Terminal blocks have screw-clamp terminals that secure the wire as well as the block to the bar. Blocks are UL recognized for grounding applications.

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

Bars

Lg., m	Wd., mm	Ht., mm		Each
1	6	6	0000000	000000
1	10	3	0000000	00000

Brackets

Surface-Mount Bracket

DIN-Rail Mount Bracket

		Mounting Holes
	Mounting Fasteners Included	Dia.	No. of	Pkg. Qty.		Pkg.
Surface-Mount Brackets	No	0.16"	1	5	0000000	00000
DIN-Rail Mount Brackets for DIN 3 Rails	__	__	__	5	0000000	0000

Terminal Blocks

Terminal Blocks										Blank Marker Cards
No. of Circuits	For Wire Gauge	Wire Connection Type	Wd., mm	Lg., mm	Ht., mm	Specifications Met	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
1	22-10	Screw-Clamp Terminals	7.5	30	23.3	UL Recognized Component	5	0000000	00000	100	0000000	00000
1	10-4	Screw-Clamp Terminals	9.8	36	23.3	UL Recognized Component	5	0000000	0000	100	0000000	0000
1	8-2	Screw-Clamp Terminals	14.5	45	27.3	UL Recognized Component	5	0000000	0000	100	0000000	0000

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How to Identify and Measure Fittings

Solder-Connect Fittings for Copper Tubing

Press-Connect Fittings for Copper Tubing

Harsh Environment High-Current Distribution Bars

Modular Distribution Bars