Solder Splices | McMaster-Carr

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18 Products

Solder-Loaded Heat-Shrink Crimp-On Butt Splices

The most secure, electrically conductive, and environmentally sealed connection we offer, these splices have enclosed solder and an adhesive-lined insulation that melt when heat is applied. The insulation shrinks and bonds to wire, protecting it from water and corrosion.

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

For Wire Gauge	Lg.	Color	Insulation Material	Terminal Material	Shrink Temperature, °F	Max. Voltage	Max. Temperature, °F	Pkg. Qty.		Pkg.
24-22	0.88"	Clear	Polyolefin Plastic	Tin-Plated Copper	275°	600V AC 600V DC	220°	10	0000000	000000
22-18	1.33"	Red	Polyolefin Plastic	Tin-Plated Copper	275°	600V AC 600V DC	220°	10	0000000	00000
16-14	1.33"	Blue	Polyolefin Plastic	Tin-Plated Copper	275°	600V AC 600V DC	220°	10	0000000	00000
12-10	1.33"	Yellow	Polyolefin Plastic	Tin-Plated Copper	275°	600V AC 600V DC	220°	10	0000000	00000

Solder-Loaded Heat-Shrink Reducing Crimp-On Butt Splices

Create a water- and corrosion-resistant seal while connecting two different sizes of wire. When these splices are heated, the solder inside melts and the adhesive liner shrinks and bonds to form the seal. Because of this seal, these splices are the most secure, electrically conductive splices we offer that connect two different sizes of wire. All have a stripe on the smaller end that’s a different color than the body, so you can easily match your wire to the right connector.

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

For Wire Gauge	Length	Color	Insulation Material	Terminal Material	Shrink Temperature, °F	Maximum Voltage	Maximum Temperature, °F	Pkg. Qty.		Pkg.
22-18 × 26-22	1.5"	Red with Red Stripe and White Stripe	Polyolefin Plastic	Tin-Plated Copper	275°	600V AC 600V DC	230°	10	0000000	000000
16-14 × 22-18	1.5"	Blue with Blue Stripe and Red Stripe	Polyolefin Plastic	Tin-Plated Copper	275°	600V AC 600V DC	230°	10	0000000	00000
12-10 × 16-14	1.5"	Yellow with Blue Stripe and Yellow Stripe	Polyolefin Plastic	Tin-Plated Copper	275°	600V AC 600V DC	230°	10	0000000	00000
8 × 12-10	1.75"	Pink with Pink Stripe and Yellow Stripe	Polyolefin Plastic	Tin-Plated Copper	275°	600V AC 600V DC	230°	10	0000000	00000

Solder-Loaded Heat-Shrink No-Crimp Butt Splices

With a ring of solder on the inside, these heat-shrink splices create secure, water-resistant connections between wires without the need for a crimping tool. Instead, heat the splice with a heat gun or butane torch to shrink the tubing, seal the connection, and liquefy the solder.

Because they use solder, these splices make more reliable connections than crimp-on splices. The melted solder fills the gaps between the wires' strands to make the electrical connection. Made of a tin-bismuth alloy, it's safe to use where lead is prohibited. It has a lower melting point than lead, so you're less likely to melt the heat-shrink tubing before melting the solder.

A layer of hot-melt adhesive lines the inside of the heat-shrink tubing to prevent the wires from pulling apart. The adhesive also seals the connection, blocking out water, dust, and other contaminants that can corrode the wire and cause a short.

To help with identification, each size has a different color. All are UL recognized for use with other components in an electrical system. When used with other UL recognized components, such as wires of the correct gauge, they can be part of a UL listed final product.

For Wire Gauge	Lg.	Color	Insulation Material	Shrink Temperature, °F	Max. Voltage	Max. Temperature, °F	Pkg. Qty.		Pkg.
24-22	0.88"	Clear	Polyolefin Plastic	275°	600V AC 600V DC	230°	10	0000000	000000
22-18	1.33"	Red	Polyolefin Plastic	275°	600V AC 600V DC	230°	10	0000000	00000
16-14	1.33"	Blue	Polyolefin Plastic	275°	600V AC 600V DC	230°	10	0000000	00000
12-10	1.33"	Yellow	Polyolefin Plastic	275°	600V AC 600V DC	230°	10	0000000	00000
8	1.64"	Pink	Polyolefin Plastic	275°	600V AC 600V DC	230°	5	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

Solder-Loaded Heat-Shrink Terminal and Splice Assortments

Keep on hand a variety of different sized terminals and splices with the most secure, sealed connection we offer. Heat the outside and the enclosed solder melts to secure your wire. The insulation also shrinks when heated, keeping out water and contaminants.

Ring, quick-disconnect, and spade terminals have insulation covering the barrel to prevent short circuiting with nearby wire. Butt splices have a fully insulated connection tab, so no metal is exposed when they’re mated.

Barrel Insulated, Fully Insulated—Polyolefin Plastic
Number of Pieces	Includes	Heat Shrink Liner Material	Shrink Temperature, °F	Max. Temperature, °F	Max. Voltage		Each
480	Ring Terminals (22-10 AWG)—Barrel Insulated Spade Terminals (22-10 AWG)—Barrel Insulated Male and Female Quick-Disconnect Terminals (16-10 AWG)—Barrel Insulated Butt Splices (26-10 AWG)—Fully Insulated Metal Case	Adhesive	275°	230°	600V AC 600V DC	0000000	0000000

Solder-Loaded Heat-Shrink Crimp-On Butt Splice Assortments

When the splices in these assortments are heated, the enclosed solder melts to create the most secure, electrically conductive, and environmentally sealed connection we offer. They have an adhesive-lined insulation that shrinks and bonds to wire when heated, protecting it from water and corrosion.

Fully Insulated—Polyolefin Plastic
Number of Pieces	Includes	Terminal Material	Heat Shrink Liner Material	Shrink Temperature, °F	Maximum Temperature, °F	Maximum Voltage		Each
60	Butt Splices (22-10 AWG)—Fully Insulated Compartmented Plastic Case	Tin-Plated Copper	Adhesive	275°	200°	600V AC 600V DC	0000000	000000