Crimp Caps | McMaster-Carr

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Wire Connection Method

Crimp On

Solder

For Wire Gauge

Insulation

Voltage

Wire Construction

Insulation Color

Maximum Wire Combination

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

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

Two 12-Ga. Wires

Color

Blue

Clear

Minimum Wire Combination

Four 18-Ga. Wires

One 18-Ga. Wire with One 22-Ga. Wire

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

Maximum Temperature

Material

Performance

Insulation Material

Certification

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

REACH

RoHS

Length

Pipe Size

Finish

Pipe Schedule

For Use With

Pipe Material

Shrink Temperature

32 Products

Crimp-On Wire Connectors

A step up in grip strength and conductivity from standard wire connectors. Twist your wires together and crimp them so they hold securely when tugged or jostled. For rain and splashes, choose heat-shrink crimp-on wire connectors instead. For wires on or around vibrating equipment, consider tight-hold heat-shrink connectors.

	For Wire		Wire Combination
	Ga.	Construction	Min.	Max.	Insulation Color	Terminal Material	Max. Temp., ° F	Max. Voltage	Certification	Pkg. Qty.		Pkg.
Nylon Insulation







				Single Crimp

				22 to 14	Solid, Stranded	One 18-Ga. Wire with One 22-Ga. Wire	One 16-Ga. Wire with Two 20-Ga. Wires	Clear	Copper	220	300V AC 300V DC	CSA Certified, UL Listed	50	7242K111	00000


				22 to 12	Solid, Stranded	One 20-Ga. Wire with One 22-Ga. Wire	One 14-Ga. Wire with Two 18-Ga. Wires	Clear	Copper	220	600V AC 600V DC	CSA Certified, UL Listed	50	7242K64	0000
				18 to 8	Stranded	Four 18-Ga. Wires	One 8-Ga. Wire with One 14-Ga. Wire	Clear	Copper	220	600V AC 600V DC	CSA Certified, UL Listed	50	7242K65	00000
				16 to 10	Solid, Stranded	Two 16-Ga. Wires	Two 12-Ga. Wires	Clear	Copper	220	600V AC 600V DC	CSA Certified, UL Listed	50	7242K21	0000


				Noninsulated







								Single Crimp

								22 to 14	Solid, Stranded	One 18-Ga. Wire with One 22-Ga. Wire	One 16-Ga. Wire with Two 20-Ga. Wires	—	Tin-Plated Copper	Not Rated	Not Rated	—	50	7242K61	0000


								22 to 12	Solid, Stranded	One 20-Ga. Wire with One 22-Ga. Wire	One 14-Ga. Wire with Two 18-Ga. Wires	—	Tin-Plated Copper	Not Rated	Not Rated	—	50	7242K62	0000
								18 to 8	Stranded	Four 18-Ga. Wires	One 8-Ga. Wire with One 14-Ga. Wire	—	Tin-Plated Copper	Not Rated	Not Rated	—	50	7242K58	0000
								16 to 10	Solid, Stranded	Two 16-Ga. Wires	Two 12-Ga. Wires	—	Tin-Plated Copper	Not Rated	Not Rated	—	50	7242K63	0000

Heat-Shrink Crimp-On Wire Connectors

A step up in grip strength and strain relief over standard crimp-on wire connectors. First, twist your wires together and crimp them in the connector. Then, apply a heat gun to shrink the insulation and hold wires securely under tension and vibration. The heat shrink also protects wire from the drips, dirt, and scuffs that lead to fraying, poor conductivity, and short circuits.

	For Wire		Wire Combination
	Ga.	Construction	Min.	Max.	Insulation Color	Terminal Material	Max. Temp., ° F	Max. Voltage	Shrink Temp., ° F	Certification	Pkg. Qty.		Pkg.
Nylon Insulation







				Single Crimp

				22 to 14	Solid, Stranded	Two 22-Ga. Wires	One 14-Ga. Wire with One 20-Ga. Wire	Clear	Tin-Plated Copper	230	600V AC 600V DC	250	C-UL Listed, UL Listed	10	4289N11	000000


				18 to 10	Solid, Stranded	Two 18-Ga. Wires	One 10-Ga. Wire with One 16-Ga. Wire	Clear	Tin-Plated Copper	230	600V AC 600V DC	250	C-UL Listed, UL Listed	10	4289N12	00000

Low-Pressure Iron and Steel Press-Socket Pipe Fittings

Crimp these fittings onto steel pipe to form a tightly sealed connection that’s faster than threading or welding and doesn’t require heat. An internal gripping ring and rubber O-ring create a secure seal when crimped. They are designed to leak if fittings have not been crimped; a colored dot marks the leak path so it's easy to spot unsealed connections. These steel fittings are coated in zinc-nickel to resist corrosion, but will rust if frequently exposed to saltwater or harsh chemicals. They are comparable to Viega MegaPress steel fittings. Fittings meet ASME B31 code requirements for use in pressure piping systems.

Caps

Cap

Zinc-Plated Steel—Zinc-plated steel fittings have better corrosion resistance than plain steel fittings.

Buna-N O-Ring—Buna-N rubber O-rings hold up to natural gas, propane, diesel fuel, lubricants, and other oils. Fittings with these O-rings are often used in fuel gas systems and air lines. They meet the ANSI LC4/CSA 6.32 standard for fuel gas systems and comply with the International Fuel Gas Code.

EPDM O-Ring—Fittings with an EPDM rubber O-ring are often used for water processing lines, fire sprinklers, and heating and cooling systems. EPDM rubber won’t degrade when exposed to water, ethylene glycol, and propylene glycol. These fittings meet UL 213 and FM 1920 standards for use in fire protection systems.

	Material	Max. Pressure @ Temp.	O-Ring Material	Certification		Each
Press Socket Female



	1/2	Zinc-Plated Steel	125 psi @ 72° F	Buna-N	IAPMO Listed	3360N4	000000


	1/2	Zinc-Plated Steel	200 psi @ 72° F	EPDM	IAPMO Listed	3360N394	00000
	3/4	Zinc-Plated Steel	125 psi @ 72° F	Buna-N	IAPMO Listed	3360N401	00000
	3/4	Zinc-Plated Steel	200 psi @ 72° F	EPDM	IAPMO Listed	3360N395	00000
	1	Zinc-Plated Steel	125 psi @ 72° F	Buna-N	IAPMO Listed	3360N402	00000
	1	Zinc-Plated Steel	200 psi @ 72° F	EPDM	IAPMO Listed	3360N396	00000
	1 1/4	Zinc-Plated Steel	125 psi @ 72° F	Buna-N	IAPMO Listed	3360N403	00000
	1 1/4	Zinc-Plated Steel	200 psi @ 72° F	EPDM	IAPMO Listed	3360N397	00000
	1 1/2	Zinc-Plated Steel	125 psi @ 72° F	Buna-N	IAPMO Listed	3360N404	00000
	1 1/2	Zinc-Plated Steel	200 psi @ 72° F	EPDM	IAPMO Listed	3360N398	00000
	2	Zinc-Plated Steel	125 psi @ 72° F	Buna-N	IAPMO Listed	3360N405	00000


	2	Zinc-Plated Steel	200 psi @ 72° F	EPDM	IAPMO Listed	3360N399	00000

Crimping Tools

Image of Product. Front orientation. Tube Crimpers.

Crimping tools seal fittings in less than five seconds. These tools are cordless, so you can take them to any job. Connect the jaw or ring that matches your pipe size to these tools, then pull the trigger to crimp the fitting. The pivoting head lets you access connections from any angle.

	Battery
Voltage, V DC	No. Included	Cap., A·h	Battery Charger Included	Battery Charging Time, min.	Compatible With		Each
18	2	3	Yes	39	Viega MegaPress, Viega ProPress, Viega ProPress XL-C	2233N106	000000000

Jaw and Ring Sets


	Jaw and Ring Set

Jaw and ring sets include three jaws, three rings, and one ring actuator jaw. Jaws are for pipe sizes 1/2 to 1; they fit directly into the crimping tool. Rings are for pipe sizes 1 1/4 to 2; clip the ring around the fitting and use the ring actuator jaw and crimping tool to press the open ends together.

For Pipe
Size	Material	For Mfr.	For Mfr. Model No.	Compatible With	Includes	Container Type		Each
1/2, 3/4, 1, 1 1/4, 1 1/2, 2	Stainless Steel, Steel	Ridgid	RP 340	Viega MegaPress	One Ring Actuator Jaw, Three Jaws (1/2-1 Pipe Size), Three Rings (1 1/4-2 Pipe Size)	Carrying Case	2233N318	000000000

Tight-Hold Heat-Shrink Wire Connectors

Our tightest-holding connectors secure wire through heavy vibration and sharp tugs. Apply a heat gun or butane torch to shrink the insulation and firmly grip the wire. As the connector heats up, the enclosed solder melts around the wire for a stronger, more rigid connection than unsoldered wire.

	For Wire
	Ga.	Construction	For Max. Bundle Dia.	Insulation Color	Terminal Material	Max. Temp., ° F	Max. Voltage	Shrink Temp., ° F	Certification	Pkg. Qty.		Pkg.
PVDF Insulation







				Solder Connection

				18 to 14	Stranded	0.130"	Blue	Copper	257	600V AC 600V DC	824	C-UL Listed, UL Listed	5	4299N21	000000


				14 to 12	Stranded	0.175"	Blue	Copper	257	600V AC 600V DC	824	C-UL Listed, UL Listed	5	4299N22	00000
				12 to 8	Stranded	0.275"	Blue	Copper	257	600V AC 600V DC	824	C-UL Listed, UL Listed	5	4299N23	00000

Low-Pressure Stainless Steel Press-Socket Pipe Fittings

Press these fittings onto stainless steel pipe using a crimping tool for a permanent, leak-tight connection that's faster than threading or welding and doesn't require heat. Fittings have an internal stainless steel gripping ring and rubber O-ring that create a seal when crimped. They are designed to leak if fittings have not been crimped; a colored dot marks the leak path so it's easy to spot unsealed connections. All of these fittings are made of 304 stainless steel to resist corrosion from frequent exposure to water and fuels. They’re often used for water processing lines, heating and cooling systems, and fuel lines. They are comparable to Viega MegaPress fittings. Fittings meet ANSI/ASME B31 code requirements for use in pressure piping systems.

Caps

Cap

304 Stainless Steel—Fittings hold up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.

			304 Stainless Steel
	Pipe Size	Certification	Max. Pressure @ Temp.		Each
Press-Socket Female



		1/2	IAPMO Listed	125 psi @ 72° F	3319N193	000000


		3/4	IAPMO Listed	125 psi @ 72° F	3319N194	00000
		1	IAPMO Listed	125 psi @ 72° F	3319N195	00000
		1 1/2	IAPMO Listed	125 psi @ 72° F	3319N196	00000
		2	IAPMO Listed	125 psi @ 72° F	3319N197	000000

Crimping Tools

	Battery
Voltage, V DC	No. Included	Cap., A·h	Battery Charger Included	Battery Charging Time, min.	Compatible With		Each
18	2	3	Yes	39	Viega MegaPress, Viega ProPress, Viega ProPress XL-C	2233N106	000000000

Jaw and Ring Sets


	Jaw and Ring Set

For Pipe
Size	Material	For Mfr.	For Mfr. Model No.	Compatible With	Includes	Container Type		Each
1/2, 3/4, 1, 1 1/4, 1 1/2, 2	Stainless Steel, Steel	Ridgid	RP 340	Viega MegaPress	One Ring Actuator Jaw, Three Jaws (1/2-1 Pipe Size), Three Rings (1 1/4-2 Pipe Size)	Carrying Case	2233N318	000000000