Welding Leads | McMaster-Carr

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86 Products

Welding Cable

Image of Specification. Front orientation. Contains Border. Welding Cable. Flexible, Stranded Wire Class M.

This cable withstands abrasion, oil, and the rough conditions found in welding applications.

Stranded Wire Class K—Class K cable is for general purpose welding applications. It bends and stays in the position that you bend it.

Stranded Wire Class M—Class M cable is more flexible and durable than Class K cable.

	Current @ Temp.	Outer Jacket Material	Temp., ° F	Flammability Rating	Choose an Outer Jacket Color	Choose a Length, ft.		Per Ft.
600V AC







	Bend and Stay

	8	K	182/30	—	EPDM	-55 to 220	UL 2556 VW-1	Black, Red	10, 20, 25, 30, 50, 100, 250	7940A86	00000


	6	K	260/30	—	EPDM	-55 to 220	UL 2556 VW-1	Black, Red	10, 20, 25, 30, 50, 100, 250	7940A91	0000
	4	K	364/30	—	EPDM	-55 to 220	UL 2556 VW-1	Black, Red	10, 20, 25, 30, 50, 100, 250	7940A92	0000
	2	K	624/30	—	EPDM	-55 to 220	UL 2556 VW-1	Black, Red	10, 20, 25, 30, 50, 100, 250	7940A93	0000
	1	K	767/30	—	EPDM	-55 to 220	UL 2556 VW-1	Black, Red	10, 20, 25, 30, 50, 100, 250	7940A94	0000
	1/0	K	975/30	—	EPDM	-55 to 220	UL 2556 VW-1	Black, Red	10, 20, 25, 30, 50, 100, 250	7940A95	0000
	2/0	K	1,196/30	—	EPDM	-55 to 220	UL 2556 VW-1	Black, Red	10, 20, 25, 30, 50, 100, 250	7940A96	0000
	3/0	K	1,547/30	—	EPDM	-55 to 220	UL 2556 VW-1	Black, Red	10, 20, 25, 30, 50, 100, 250	7940A97	00000
	4/0	K	1,950/30	—	EPDM	-55 to 220	UL 2556 VW-1	Black, Red	10, 20, 25, 30, 50, 100, 250	7940A98	00000


	600V AC/600V DC







					Flexible

					2	M	1,482/34	—	EPDM	-55 to 220	UL 2556 VW-1	Orange	10, 20, 25, 30, 50, 100, 250	7940A77	0000


					1	M	1,843/34	—	EPDM	-55 to 220	UL 2556 VW-1	Orange	10, 20, 25, 30, 50, 100, 250	7940A78	0000
					1/0	M	2,337/34	—	EPDM	-55 to 220	UL 2556 VW-1	Orange	10, 20, 25, 30, 50, 100, 250	7940A79	0000
					2/0	M	2,886/34	—	EPDM	-55 to 220	UL 2556 VW-1	Orange	10, 20, 25, 30, 50, 100, 250	7940A81	0000




							Ultra Flexible

							6	—	259/30	105 amp @ 86° F	EPDM	-40 to 190	—	Black, Red	10, 25, 50, 100	6948K91	0000


							4	—	385/30	140 amp @ 86° F	EPDM	-40 to 190	—	Black, Red	10, 25, 50, 100	6948K92	0000
							2	—	651/30	190 amp @ 86° F	EPDM	-40 to 190	—	Black, Red	10, 25, 50, 100	6948K93	0000
							1	—	798/30	220 amp @ 86° F	EPDM	-40 to 190	—	Black, Red	10, 25, 50, 100	6948K94	0000
							1/0	—	1,026/30	260 amp @ 86° F	EPDM	-40 to 190	—	Black, Red	10, 25, 50, 100	6948K95	0000
							2/0	—	1,254/30	300 amp @ 86° F	EPDM	-40 to 190	—	Black, Red	10, 25, 50, 100	6948K96	0000
							3/0	—	1,615/30	350 amp @ 86° F	EPDM	-40 to 190	—	Black, Red	10, 25, 50, 100	6948K97	0000
							4/0	—	2,052/30	405 amp @ 86° F	EPDM	-40 to 190	—	Black, Red	5, 10, 25, 50, 100	6948K98	00000

Welding Cable Connector Sets

Each set includes one plug and one socket. Plugs lock into sockets with a cam action that pulls the two pieces together tightly. The housing resists oil.

					Mated Housing
Current, amp	Wire Connection	For Wire Ga.	For Cable OD	Housing Connection Method	Dia.	Lg.	Color	Temp. Range, ° F		Each
250	Screw Terminal	4, 3, 2, 1, 1/0	0.2" to 0.5"	Push In	1.3"	9.7"	Black	-50 to 350	7841A11	000000
350	Screw Terminal	1/0, 2/0	0.32" to 0.56"	Push In	1.4"	9.8"	Black	-50 to 350	7841A12	00000
500	Screw Terminal	3/0, 4/0	0.41" to 0.63"	Push In	1.4"	9.8"	Black	-50 to 350	7841A13	00000

Ready-to-Use Welding Cords with Male Connector and Electrode Holder

Image of Product. Front orientation. Welding Cords. Male, Connector Orifice, Electrode Holder Connection.

The male quick-action connector on these cords gives your welding set-up greater versatility by allowing quick changes.

Cable AWG	AWG	Welding Process	No. of Wires	Outer Jacket Material		10 ft. Long	25 ft. Long	50 ft. Long
1/0/1	1/0	Stick	1	EPDM	7940A35	0000000	0000000	0000000
2/0/1	2/0	Stick	1	EPDM	7940A36	000000	000000	000000

Welding Cable Connectors

Deliver power to welding cable. Plugs lock into sockets with a cam action that pulls the two pieces together tightly. The housing resists oil.

Plugs

Current, amp	Wire Connection	For Wire Ga.	For Cable OD	Housing Connection Method	OD	Lg.	Color	Temp. Range, ° F		Each
250	Screw Terminal	4, 3, 2, 1, 1/0	0.2" to 0.5"	Push In	1.3"	5.9"	Black	-50 to 350	7841A14	000000
350	Screw Terminal	1/0, 2/0	0.32" to 0.56"	Push In	1.4"	5.9"	Black	-50 to 350	7841A16	00000
500	Screw Terminal	3/0, 4/0	0.41" to 0.63"	Push In	1.4"	5.9"	Black	-50 to 350	7841A22	00000

Lug Adapters

Use lug adapters to connect welding plugs to the stud of a power supply.

	Sleeve Material	Color	OD	For Screw Size	Max. Temp., ° F		Each
Straight



	250	Bronze	Black	1.1"	1/2"	475	7854A1	000000


	500	Bronze	Black	1.2"	1/2"	475	7854A3	00000


	45° Elbow



			250	Bronze	Black	1.1"	1/2"	475	7854A2	00000


			500	Bronze	Black	1.2"	1/2"	475	7854A4	00000

Sockets

Current, amp	Wire Connection	For Wire Ga.	For Cable OD	Housing Connection Method	OD	Lg.	Color	Temp. Range, ° F		Each
250	Screw Terminal	4, 3, 2, 1, 1/0	0.2" to 0.5"	Push In	1.3"	4.9"	Black	-50 to 350	7841A15	000000
350	Screw Terminal	1/0, 2/0	0.32" to 0.56"	Push In	1.4"	4.9"	Black	-50 to 350	7841A21	00000
500	Screw Terminal	3/0, 4/0	0.41" to 0.63"	Push In	1.4"	4.9"	Black	-50 to 350	7841A23	00000

Stick Electrode Holders


Standard Lever	Extra-Clearance Lever

Keep stick electrodes in place. These holders have fully insulated bodies.

Extra-Clearance Lever—Holders with an extra-clearance lever have more space for your hand compared to holders with a standard lever.

					Standard Lever		Extra-Clearance Lever
Max. Current, amp	For Max. Rod Dia.	For Max. Wire Ga.	Jaw Material	Lg.		Each		Each
200	5/32"	1/0	Copper	8 1/2"	7939A9	000000	7937A2	000000
250	3/16"	2/0	Copper	8 3/4"	7939A7	00000	7937A3	00000
300	1/4"	2/0	Copper	10"	7939A5	00000	7937A4	00000
350	1/4"	3/0	Copper	10 5/16"	7939A6	00000	7937A5	00000
450	3/8"	4/0	Copper	10 1/4"	7939A3	00000	7937A6	00000

Ready-to-Use Welding Cords with Male Connector and Grounding Clamp

Image of Product. Front orientation. Welding Cords. Grounding Clamp Connection, Connector Orifice, Male.

The male quick-action connector on these cords gives your welding set-up greater versatility by allowing quick changes.

Stranded Wire Class K—Stranded Wire Class K cords are good for general welding applications.

Stranded Wire Class M—Stranded Wire Class M cords are often used in pipe welding because they’re more flexible and durable than Stranded Wire Class K cords.

	No. of Wires	Outer Jacket Material		10 ft. Long	25 ft. Long	50 ft. Long
Stranded Wire Class K







	Black Outer Jacket

	1/0/1	1/0	MIG, TIG, Stick, Spot, Stud	1	EPDM	7940A31	0000000	0000000	0000000


	2/0/1	2/0	MIG, TIG, Stick, Spot, Stud	1	EPDM	7940A33	000000	000000	000000




			Red Outer Jacket

			1/0/1	1/0	MIG, TIG, Stick, Spot, Stud	1	EPDM	7940A844	000000	000000	000000


			2/0/1	2/0	MIG, TIG, Stick, Spot, Stud	1	EPDM	7940A846	000000	000000	000000


			Stranded Wire Class M







							Orange/Black Outer Jacket

							1/0/1	1/0	MIG, TIG, Stick, Spot, Stud	1	TPE	7940A845	000000	000000	000000


							2/0/1	2/0	MIG, TIG, Stick, Spot, Stud	1	TPE	7940A847	000000	000000	000000

Flame-Resistant Welding Cable

This cable meets Mine Safety and Health Administration (MSHA) standards for flame resistance. The insulation resists abrasion and chemicals.

Stranded Wire Class M—Class M cable is more flexible and durable than Class K cable.

				Outer Jacket							Per Ft.
	AWG	Stranded Wire Class	Wire Strand Count	Material	Color	Temp., ° F	Flammability Rating	Certification	Choose a Length, ft.		1-249	250-Up
600V AC/600V DC







				Flexible

				6	M	660/34	Polyethylene	Orange	-55 to 190	UL 2556 VW-1	CSA Certified, MSHA Accepted, UL Listed	10, 20, 25, 30, 50, 100, 250	7818A18	00000	00000


				4	M	1,045/34	Polyethylene	Orange	-55 to 190	UL 2556 VW-1	CSA Certified, MSHA Accepted, UL Listed	10, 20, 25, 30, 50, 100, 250	7818A11	0000	0000
				2	M	1,634/34	Polyethylene	Orange	-55 to 190	UL 2556 VW-1	CSA Certified, MSHA Accepted, UL Listed	10, 20, 25, 30, 50, 100, 250	7818A12	00000	0000
				1/0	M	2,597/34	Polyethylene	Orange	-55 to 190	UL 2556 VW-1	CSA Certified, MSHA Accepted, UL Listed	10, 20, 25, 30, 50, 100, 250	7818A14	00000	00000
				2/0	M	3,300/34	Polyethylene	Orange	-55 to 190	UL 2556 VW-1	CSA Certified, MSHA Accepted, UL Listed	10, 20, 25, 30, 50, 100, 250	7818A15	00000	00000
				3/0	M	4,214/34	Polyethylene	Orange	-55 to 190	UL 2556 VW-1	CSA Certified, MSHA Accepted, UL Listed	10, 20, 25, 30, 50, 100, 250	7818A16	00000	00000
				4/0	M	5,225/34	Polyethylene	Orange	-55 to 190	UL 2556 VW-1	CSA Certified, MSHA Accepted, UL Listed	10, 20, 25, 30, 50, 100, 250	7818A17	00000	00000

Ready-to-Use Welding Cords with Male Connector and Female Connector

Image of Product. Front orientation. Welding Cords. Female, Connector Orifice, Male.

The quick-action connectors on these cords give your welding set-up greater versatility by allowing quick changes.

Cable AWG	AWG	Welding Process	No. of Wires	Outer Jacket Material		10 ft. Long	25 ft. Long	50 ft. Long
1/0/1	1/0	MIG, TIG, Stick, Spot, Stud	1	EPDM	7940A32	0000000	0000000	0000000
2/0/1	2/0	MIG, TIG, Stick, Spot, Stud	1	EPDM	7940A34	000000	000000	000000

TIG Welding Rod Feeders

For smooth, consistent welds, insert TIG welding rods into the back of these feeders and turn the wheel with your finger to dispense.

For Rod Dia.
Min.	Max.	Lg.	Material	Min. Temp.	Max. Temp.		Each
0.030"	1/8"	5 1/4"	Aluminum	Not Rated	Not Rated	7948N11	000000

Shock-Resistant Stick Electrode Holders


Standard Lever	Extra-Clearance Lever

With a cable you can disconnect to cut power, these holders prevent you from shocking yourself. Press and hold the button when you're ready to connect your cable again. Use these holders to keep stick electrodes in place.

Extra-Clearance Lever—Holders with an extra-clearance lever have more space for your hand compared to holders with a standard lever.

					Standard Lever		Extra-Clearance Lever
Max. Current, amp	For Max. Rod Dia.	For Max. Wire Ga.	Jaw Material	Lg.		Each		Each
250	3/16"	2	Brass	160"	7676N11	0000000	7676N12	0000000

Corrosion-Resistant Battery Wire

Connect batteries in generators, forklifts, and other vehicles in corrosive environments. Also known as marine wire, this copper wire is tin plated to resist corrosion from salt water, battery acid, and oil. Designed for boats, it's a good choice for use outdoors. The PVC outer jacket stands up to fuel and oil. Wire strand count is the number of strands followed by the size of the individual strand.

Stranded Wire with PVC Outer Jacket

	Wire Strand Count	Current @ Temp.	OD	Temp. Range, ° F	Outer Jacket Color		25 ft. Long	50 ft. Long	100 ft. Long
600V AC



	8	133/29	Not Rated	0.16"	0 to 220	Red	6444N11	—	0000000	0000000


	8	133/29	Not Rated	0.26"	0 to 220	Black	6444N12	—	000000	000000
	6	133/27	Not Rated	0.32"	0 to 220	Red	6444N21	000000	000000	000000
	6	266/27	Not Rated	0.32"	0 to 220	Black	6444N22	00000	000000	000000
	4	133/25	Not Rated	0.36"	0 to 220	Red	6444N31	000000	000000	000000
	4	420/25	Not Rated	0.37"	0 to 220	Black	6444N32	000000	000000	000000
	2	665/30	Not Rated	0.43"	0 to 220	Red	6444N41	000000	000000	000000
	2	665/30	Not Rated	0.47"	0 to 220	Black	6444N42	000000	000000	000000

Low-Waste Stick Electrode Holders

For less waste, these holders grasp the electrode close to the end. The body is fully insulated.

	For Rod Dia.
Max. Current, amp	Min.	Max.	For Max. Wire Ga.	Jaw Material	Lg.		Each
250	3/32"	3/16"	2/0	Brass	8"	7868A21	000000
400	1/16"	1/4"	3/0	Brass	8 15/16"	7868A12	00000

Long-Life Stick Electrode Holders

To avoid losing tension over time, the head on these holders doesn’t have a spring. Use them to keep stick electrodes in place.

Max. Current, amp	For Max. Rod Dia.	For Max. Wire Ga.	Jaw Material	Lg.		Each
250	3/16"	1/0	Copper	9 1/2"	4689N11	000000
300	1/4"	2/0	Copper	11 5/8"	4689N12	00000
400	5/16"	3/0	Copper	12 1/4"	4689N13	00000
600	3/8"	4/0	Copper	13 1/4"	4689N14	00000

Battery Wire

Connect batteries in vehicles and generators.

Stranded Wire with PVC Outer Jacket

Wire with a PVC outer jacket resists fuel and oil.

Wire Strand Count—Wire strand count is the number of strands followed by the size of the individual strand.

													Per Ft.
	Wire Gauge	Wire Strand Count	Current @ Temp.	OD	Flexibility	Temp. Range, ° F	Cable Designation	Certification	Specs. Met	Outer Jacket Color	Choose a Length, ft.		1-99	100-Up
600V AC/600V DC



		250 MCM	2,451/30	255 amp @ 86° F	0.84"	Ultra Flexible	-40 to 190	MTW	UL Listed, C-UL Listed	UL 1063	Black	5, 10, 25, 50	6948K235	000000	000000


		350 MCM	3,458/30	310 amp @ 86° F	1.05"	Ultra Flexible	-40 to 190	MTW	UL Listed, C-UL Listed	UL 1063	Black	5, 10, 25, 50	6948K255	00000	00000
		500 MCM	5,054/30	380 amp @ 86° F	1.13"	Ultra Flexible	-40 to 190	MTW	UL Listed, C-UL Listed	UL 1063	Black	5, 10, 25, 50	6948K275	00000	00000

Abrasion-Resistant Extension Cords

Our most durable extension cords. Built to NEC Article 400 standards for extra-hard service, these cords resist wear that could expose conductors and compromise safety. Their thick jacket protects against scrapes from rough surfaces.

Power Indicator—A light indicates that power is flowing through the cord.

Ground-Presence Indicator—A light indicates that the cord is properly grounded.

	Cable Designation	For Use Outdoors	Light Indicator Type	Certification		Each
NEMA 6-50 90° Elbow Plug × Socket—250V AC







	Black

	25	8	40	STW	Yes	Power and Ground Presence	C-ETL Listed, ETL Listed	5653N11	0000000


	50	8	40	STW	Yes	Power and Ground Presence	C-ETL Listed, ETL Listed	5653N12	000000

Carbon-Arc-Gouging Stick Electrode Holders

Speed up weld removal, edge preparation, gouging, and repairs when you use a holder with your carbon-arc-gouging electrodes.

	For Rod Dia.							Electrical Connection			Air Connection
Max. Current, amp	Min.	Max.	For Rod Wd. × Ht.	Max. Air Pressure, psi	Jaw Material	Lg.	Cable Lg., ft.	Cable Connection	Mounting Hole Dia.	No. of Mounting Holes	Pipe Size	Thread Type	Gender	Features		Each
600	1/8"	3/8"	3/8" × 5/32", 5/8" × 3/16"	80	Brass	10"	7	Stud Terminal	3/8"	1	3/8	NPT	Female	Cable Swivels 360°	7804A23	0000000
600	1/8"	3/8"	3/8" × 5/32", 5/8" × 3/16"	80	Brass	10"	10	Stud Terminal	3/8"	1	3/8	NPT	Female	Cable Swivels 360°	7804A13	000000
1,000	5/32"	1/2"	3/8" × 5/32", 5/8" × 3/16"	80	Brass	10 1/2"	10	Stud Terminal	3/8"	1	3/8	NPT	Female	Cable Swivels 360°	7804A12	000000