Closed-End Connectors | McMaster-Carr

Filter by

Wire Connection Method

For Wire Gauge

Wire Construction

Maximum Wire Combination

Splice Type

Certification

Minimum Wire Combination

Color

Insulation Material

RoHS Compliance

Maximum Temperature

REACH Compliance

UL File Number

DFARS Compliance

Shrink Temperature

Forward

How can we improve?

9 Products

Crimp-On Wire Splicing Connectors

A plastic cover fully insulates these splices and is clear so you can visually confirm the connection. Twist stripped wires together, insert them into the connector, and then crimp for a dependable connection.

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

For Wire Gauge	Min. Wire Combination	Max. Wire Combination	Color	For Wire Type	Insulation Material	Terminal Material	Max. Voltage	Max. Temperature, °F	Specifications Met	Pkg. Qty.		Pkg.
22-14	One 18-ga. Wire with One 22-ga. Wire	One 16-ga. Wire with Two 20-ga. Wires	Clear	Solid, Stranded	Nylon Plastic	Copper	300V AC 300V DC	220°	UL Listed, CSA Certified	50	00000000	00000
22-12	One 20-ga. Wire with One 22-ga. Wire	One 14-ga. Wire with Two 18-ga. Wires	Clear	Solid, Stranded	Nylon Plastic	Copper	600V AC 600V DC	220°	UL Listed, CSA Certified	50	0000000	0000
18-8	Four 18-ga. Wires	One 8-ga. Wire with One 14-ga. Wire	Clear	Stranded	Nylon Plastic	Copper	600V AC 600V DC	220°	UL Listed, CSA Certified	50	0000000	00000
16-10	Two 16-ga. Wires	Two 12-ga. Wires	Clear	Solid, Stranded	Nylon Plastic	Copper	600V AC 600V DC	220°	UL Listed, CSA Certified	50	0000000	0000

Heat-Shrink Crimp-On Wire Splicing Connectors

Create a secure connection that resists corrosion and water. Crimp these connectors closed after you’ve inserted stripped wires that have been twisted together. The adhesive-lined insulation shrinks when heat is applied, forming a seal. Since they’re fully insulated, there’s no metal exposed when connected.

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

For Wire Gauge	Min. Wire Combination	Max. Wire Combination	For Wire Type	Color	Insulation Material	Terminal Material	Shrink Temp., °F	Max. Voltage	Max. Temp., °F	Specifications Met	Pkg. Qty.		Pkg.
22-14	Two 22-ga. Wires	One 14-ga. Wire with One 20-ga. Wire	Solid, Stranded	Clear	Nylon Plastic	Tin-Plated Copper	250°	600V AC 600V DC	230°	UL Listed, C-UL Listed	10	0000000	000000
18-10	Two 18-ga. Wires	One 10-ga. Wire with One 16-ga. Wire	Solid, Stranded	Clear	Nylon Plastic	Tin-Plated Copper	250°	600V AC 600V DC	230°	UL Listed, C-UL Listed	10	0000000	00000

Solder-Loaded Heat-Shrink Wire Splicing Connectors

When you apply heat to these connectors, the solder inside melts to create the most secure, electrically conductive, and environmentally sealed connection we offer. They also have an adhesive-lined insulation that shrinks and bonds to wire when heated, protecting it from water and corrosion.

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

For Wire Gauge	For Wire Type	Color	Insulation Material	Terminal Material	Shrink Temperature, °F	Max. Voltage	Max. Temperature, °F	Specifications Met	Pkg. Qty.		Pkg.
18-14	Stranded	Blue	PVDF Plastic	Copper	824°	600V AC 600V DC	257°	UL Listed, C-UL Listed	5	0000000	000000
14-12	Stranded	Blue	PVDF Plastic	Copper	824°	600V AC 600V DC	257°	UL Listed, C-UL Listed	5	0000000	00000
12-8	Stranded	Blue	PVDF Plastic	Copper	824°	600V AC 600V DC	257°	UL Listed, C-UL Listed	5	0000000	00000