Set Screw Butt Splices | McMaster-Carr

	For Wire Gauge For Wire Gauge

14
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1
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250 MCM
300 MCM
350 MCM
400 MCM
450 MCM
500 MCM
600 MCM
700 MCM
750 MCM
800 MCM
900 MCM
1000 MCM

	Length Length

	For Wire Material For Wire Material

Aluminum

Copper

	Insulation Insulation


Noninsulated	Fully Insulated

	Specifications Met Specifications Met

CSA

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

DFARS Specialty Metals
COTS-Exempt

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

RoHS Compliant

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11 Products

Noninsulated Screw-Down Butt Splices

Tighten the screws to connect wires.

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

For Wire Gauge	Lg.	For Wire Material	Terminal Material	Max. Voltage	Max. Temperature, °F	Specifications Met		Each
14-2	1.19"	Aluminum, Copper	Tin-Plated Aluminum	600V AC	190°	UL Listed, CSA Certified	0000000	00000
14-1/0	1.91"	Aluminum, Copper	Tin-Plated Aluminum	600V AC	190°	UL Listed, CSA Certified	0000000	0000
4-500 MCM	3.88"	Aluminum, Copper	Tin-Plated Aluminum	600V AC	190°	UL Listed, CSA Certified	0000000	00000
6-250 MCM	2.31"	Aluminum, Copper	Tin-Plated Aluminum	600V AC	190°	UL Listed, CSA Certified	0000000	00000
10-350 MCM	2.46"	Aluminum, Copper	Tin-Plated Aluminum	600V AC	190°	UL Listed, CSA Certified	0000000	00000
250-750 MCM	5.44"	Aluminum, Copper	Tin-Plated Aluminum	600V AC	190°	UL Listed, CSA Certified	0000000	000000
500-1000 MCM	8.69"	Aluminum, Copper	Tin-Plated Aluminum	600V AC	190°	UL Listed, CSA Certified	0000000	000000

Insulated Screw-Down Butt Splices

A plastic cover fully insulates these splices and it's clear so you can visually confirm the connection. The tip can be trimmed to fit wire size. Wings on the cover have holes so that you can use the included cable tie to secure the cover to the wire. Tighten the screws to connect wires.

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

For Wire Gauge	Lg.	Color	For Wire Material	Insulation Material	Terminal Material	Max. Voltage	Max. Temperature, °F	Specifications Met		Each
14-2	3.83"	Clear	Aluminum, Copper	PVC Plastic	Tin-Plated Aluminum	600V AC	190°	UL Listed, CSA Certified	000000	000000
14-1/0	4.8"	Clear	Aluminum, Copper	PVC Plastic	Tin-Plated Aluminum	600V AC	190°	UL Listed, CSA Certified	000000	00000
10-350 MCM	7.91"	Clear	Aluminum, Copper	PVC Plastic	Tin-Plated Aluminum	600V AC	190°	UL Listed, CSA Certified	000000	00000
6-250 MCM	7.91"	Clear	Aluminum, Copper	PVC Plastic	Tin-Plated Aluminum	600V AC	190°	UL Listed, CSA Certified	000000	00000