Watertight Wire Connectors | McMaster-Carr

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Wire Connection Method

Insulation Piercing

For Wire Gauge

Number of Wires

Wire Construction

Environment

Color

Maximum Wire Combination

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

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

Three 10-Ga. Wires

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

Three 12-Ga. Wires

Two 6-Ga. Wires with One 10-Ga. Wire

Two 10-Ga. Wires with Two 14-Ga. Wires

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

Application

Wire Material

Material

Insulation Color

Width

Minimum Wire Combination

Four 14-Ga. Wires

Four 18-Ga. Wires

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

Three 16-Ga. Wires with One 22-Ga. Wire

Three 20-Ga. Wires

Two 14-Ga. Wires

Two 18-Ga. Wires

Two 20-Ga. Wires with One 22-Ga. Wire

Insulation Material

Certification

Terminal Material

Voltage

Maximum Temperature

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

RoHS

Reusable

Splice Type

Enclosure Rating

Performance

Corrosion Resistant

Easy Inspection

Moisture Resistant

How can we improve?

22 Products

Wire Splices, Connectors, and Taps

Butt Splice

Watertight Insulation-Piercing Butt Splices

Watertight Insulation-Piercing Butt Splices

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

Watertight Set Screw Butt Splices

Watertight Set Screw Butt Splices

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

Underground Heat-Shrink Set Screw Butt Splices

Underground Heat-Shrink Set Screw Butt Splices

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

Watertight Reducing Insulation-Piercing Butt Splices

Watertight Reducing Insulation-Piercing Butt Splices

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

Wire Connector

Moisture-Resistant Twist-On Wire Connectors

Moisture-Resistant Twist-On Wire Connectors

Filled with silicone to repel moisture and prevent corrosion

Underground Twist-On Wire Connectors

Underground Twist-On Wire Connectors

Protect underground connections from moisture, corrosion, and stress

Other Products

Load Cell Junction Boxes

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)