Electrical Wire Splices | McMaster-Carr

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Wire Connection Method

Number of Wires

Color

Insulation

Wire Construction

Wire Material

Application

Terminal Material

Tap Wire Gauge (AWG)

Maximum Temperature

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Insulation Material

Material

Certification

UL Recognized Component

Voltage

Maximum Wire Combination

Five 12-Ga. Wires

Four 10-Ga. Wires

Four 12-Ga. Wires

Four 14-Ga. Wires with One 18-Ga. Wire

Four 16-Ga. Wires

One 6-Ga. Wire with One 8-Ga. Wire

One 6-Ga. Wire with Two 8-Ga. Wires

One 8-Ga. Wire with One 12-Ga. Wire

One 8-Ga. Wire with One 14-Ga. Wire

One 8-Ga. Wire with Three 12-Ga. Wires

One 10-Ga. Wire with One 16-Ga. Wire

One 14-Ga. Wire with One 20-Ga. Wire

One 14-Ga. Wire with Two 18-Ga. Wires

One 16-Ga. Wire with Two 20-Ga. Wires

Three 10-Ga. Wires

Three 10-Ga. Wires with One 18-Ga. Wire

Three 12-Ga. Wires

Three 14-Ga. Wires

Splice Type

Butt Splice

Multi-Direction Splice

Insulation Color

Wire Connection Position

Terminal Type

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Sold As

410 Products

Wire Splices, Connectors, and Taps

Wire Tap/Connector

Wire Tap/Connectors

Tap or join larger wires than standard wire taps and connectors

65 products

Underground Wire Tap/Connectors

Double O-rings and EPDM insulation withstand moisture and stress underground

5 products

Butt Splice

Crimp-On Butt Splices

Connect wires end to end to extend a run or repair a line

20 products

Set Screw Butt Splices

Connect thicker wires than crimp-on butt splices

11 products

Heat-Shrink Crimp-On Butt Splices

Insulation shrinks when heated for a tighter grip than standard butt splices

8 products

Underground Heat-Shrink Set Screw Butt Splices

Enclosed in durable plastic tubing so you can bury in rocky soil

2 products

Compression Butt Splices

Connect thicker wires than crimp-on butt splices

26 products

Tight-Hold Heat-Shrink Butt Splices

Solder stiffens and secures the wire through the heaviest vibrations and sharpest tugs

9 products

Heat-Shrink Reducing Crimp-On Butt Splices

A step up in strength and strain relief over standard butt splices

8 products

Quick-Connect Clamp-On Butt Splices

Pop onto wire by hand instead of fussing with crimping tools

8 products

Reducing Crimp-On Butt Splices

Connect two components with different wire sizes

11 products

Heat-Shrink 2-to-1 Wire Crimp-On Butt Splices

Splice two wires into one for a tidier setup

4 products

Watertight Insulation-Piercing Butt Splices

Gel seals off the wire so it stays completely dry and conductive

3 products

Twist-On Butt Splices

Insert wires and twist on the caps to lock wires in place when vibrated and pulled

5 products

Reducing Compression Butt Splices

Connect two components with different wire sizes

10 products

Tight-Hold Heat-Shrink Reducing Butt Splices

Join two sizes of wire and heat the splice to strengthen the connection with solder

4 products

Moisture-Resistant Crimp-On Butt Splices

Filled with grease to repel moisture and maintain a strong connection

3 products

Watertight Set Screw Butt Splices

End caps seal off the wire so it stays completely dry and conductive

2 products

Tight-Hold Butt Splices

Solder stiffens and strengthens the wire so it won't fray when vibrated

4 products

Twist-On Butt Splice Assortments

Bring multiple sizes to a job and leave the installation tools behind

2 products

Quick-Connect Push-On Butt Splices

An economical alternative to quick-connect clamp-on splices

1 product

Moisture-Resistant Twist-On Butt Splices

Sealed end caps repel moisture to keep wires dry and conductive

4 products

Watertight Reducing Insulation-Piercing Butt Splices

Join two wires of different sizes while keeping the connection dry and conductive

3 products

Tight-Hold Heat-Shrink Butt Splice Assortments

Keep multiple sizes on hand and heat the splice to strengthen the connection with solder

1 product

Wire Connector

Quick-Connect Clamp-On Wire Connectors

Flip the clamp down on your wire to save time over crimping

16 products

Crimp-On Wire Connectors

Squeeze onto wires for a stronger grip than standard connectors

8 products

Insulation-Piercing Wire Connectors

Bite through insulation to connect wires without stripping them first

3 products

Twist-On Wire Connectors

Twist onto wires without crimping for fast and easy installation

28 products

Moisture-Resistant Insulation-Piercing Wire Connectors

Filled with gel to repel moisture and prevent corrosion

9 products

Quick-Connect Clamp-On Wire Connector Assortments

Join two, three, or five wires without stopping to crimp connectors

1 product

Moisture-Resistant Twist-On Wire Connectors

Filled with silicone to repel moisture and prevent corrosion

9 products

Quick-Connect Push-On Wire Connectors

Push wire into place to save time over crimping or twisting

30 products

Tight-Hold Heat-Shrink Wire Connectors

Solder stiffens and secures the wire through the heaviest vibrations and sharpest tugs

3 products

Twist-On Wire Connector and Insulation-Piercing Wire Tap Assortments

Twist connectors onto wire ends or pierce insulation with a tap to create a new circuit

1 product

Underground Twist-On Wire Connectors

Protect underground connections from moisture, corrosion, and stress

1 product

Set Screw Wire Connectors

Tighten the set screw into the metal barrel for a firm grip on the wire

3 products

Heat-Shrink Crimp-On Wire Connectors

Shrink when heated for a stronger grip than standard crimp-on connectors

2 products

Quick-Connect Push-On Wire Connector Assortments

Join two to eight wires without stopping to crimp connectors

2 products

Twist-On Wire Connector Assortments

Bring a range of sizes to the job and twist them onto wires without crimping tools

1 product

Split-Bolt Splice

Split-Bolt Splices

Tighten a hex nut for a strong hold on large wires

17 products

Wire Tap

Easy-Insert Lay-In Wire Taps

Lay wire into your tap on the first try instead of poking and threading

6 products

Insulation-Piercing Wire Taps

Bite into an installed wire to power additional lines

8 products

Insulation-Piercing Wire Taps for Snap-Plug Terminals

Pop snap plugs in and out to restore or break connections without rewiring

2 products

Moisture-Resistant Insulation-Piercing Wire Taps

Filled with gel to repel moisture and prevent corrosion

2 products

Insulation-Piercing Wire Taps for Quick-Disconnect Terminals

Pop quick-disconnect terminals in and out to restore or break connections without rewiring

3 products

Twist-On Insulation-Piercing Wire Taps

Twist the cap for a tighter grip on the wire than other taps

5 products

Twist-On Insulation-Piercing Wire Tap Assortments

Keep a variety of sizes on hand to tap any wiring in your facility

1 product

Multi-Direction Splice

Multi-Direction Heat-Shrink Crimp-On Splices

A step up in strength and strain relief over standard multi-direction splices

3 products

Multi-Direction Crimp-On Splices

Streamline wiring from multiple components into a single circuit

10 products

Other Products

Terminal and Splice Kits

Maintain a supply of extra terminals and splices to join and terminate wire

17 products

Wire Splice Covers

Seal out dust and moisture to protect electrical connectors

3 products