Tube End Nuts | McMaster-Carr

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	System of Measurement System of Measurement

Inch

	Thread Size Thread Size

	For Tube OD For Tube OD

	Thread Direction Thread Direction


Right Hand	Left Hand

	For Tube Wall Thickness For Tube Wall Thickness

	Nut Type Nut Type	Show

Tube End

	Nut Type Nut Type	Hide

	Material Material

4130 Alloy Steel

Steel

	For Minimum Tube ID For Minimum Tube ID

	Threading Threading

	Fully Threaded
	Partially Threaded

	For OD For OD

	Height Height

	Thread Length Thread Length

	Thread Type Thread Type

UNC

UNF

	Thread Spacing Thread Spacing

Coarse

Fine

	Thread Fit Thread Fit

Class 2B

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Length Length

	For Maximum Tube ID For Maximum Tube ID

	Finish Finish

Zinc Plated

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About Nuts, Materials, and Finishes

Weld these nuts to round uncoated metal tubes to attach threaded parts, such as rod ends. Also known as tube adapters and weldable threaded tube ends.

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

4130 Alloy Steel
For Tube Wall Thick.	Thread Size	Ht.	Threading	Thread Lg.		Each
For 3/8" Tube OD
0.058"	10-32	1"	Fully Threaded	1"	000000000	00000
For 1/2" Tube OD
0.058"	1/4"-28	1"	Fully Threaded	1"	000000000	0000
0.058"	5/16"-24	1"	Fully Threaded	1"	000000000	0000
For 5/8" Tube OD
0.058"	5/16"-24	1"	Partially Threaded	3/4"	000000000	0000
0.058"	3/8"-24	1"	Partially Threaded	3/4"	000000000	0000
0.058"	7/16"-20	1"	Fully Threaded	1"	000000000	0000
For 3/4" Tube OD
0.058"	5/16"-24	1"	Partially Threaded	3/4"	000000000	0000
0.058"	3/8"-24	1"	Fully Threaded	1"	000000000	0000
0.058"	7/16"-20	1"	Fully Threaded	1"	000000000	0000
0.065"	5/16"-24	1 3/8"	Partially Threaded	7/8"	000000000	0000
0.065"	3/8"-24	1 3/8"	Partially Threaded	15/16"	000000000	0000
0.065"	7/16"-20	1 3/8"	Partially Threaded	1 1/8"	000000000	0000
For 7/8" Tube OD
0.058"	3/8"-24	1 3/8"	Partially Threaded	1"	000000000	0000
0.058"	7/16"-20	1 3/8"	Partially Threaded	1 1/8"	000000000	0000
0.058"	1/2"-20	1 3/8"	Partially Threaded	1 1/4"	000000000	0000
0.065"	3/8"-24	1 3/8"	Partially Threaded	1"	000000000	0000
0.065"	7/16"-20	1 3/8"	Partially Threaded	1"	000000000	0000
0.065"	1/2"-20	1 3/8"	Partially Threaded	1 1/4"	000000000	0000
0.083"	3/8"-24	1 1/2"	Partially Threaded	1"	000000000	0000
0.083"	7/16"-20	1 1/2"	Partially Threaded	1 1/8"	000000000	0000
0.083"	1/2"-20	1 1/2"	Partially Threaded	1 1/4"	000000000	0000
For 1" Tube OD
0.058"	3/8"-24	1 1/2"	Partially Threaded	1"	000000000	0000
0.058"	7/16"-20	1 1/2"	Partially Threaded	1"	000000000	0000
0.058"	1/2"-20	1 1/2"	Partially Threaded	1 1/4"	000000000	0000
0.058"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
0.065"	3/8"-24	1 1/2"	Partially Threaded	1"	000000000	0000
0.065"	7/16"-20	1 1/2"	Partially Threaded	1"	000000000	0000
0.065"	1/2"-20	1 1/2"	Partially Threaded	1 1/4"	000000000	0000
0.065"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
0.083"	3/8"-24	1 1/2"	Partially Threaded	1"	000000000	0000
0.083"	7/16"-20	1 1/2"	Partially Threaded	1"	000000000	0000
0.083"	1/2"-20	1 1/2"	Partially Threaded	1 1/4"	000000000	0000
0.083"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
0.095"	3/8"-24	1 1/2"	Partially Threaded	1"	000000000	0000
0.095"	7/16"-20	1 1/2"	Partially Threaded	1"	000000000	0000
0.095"	1/2"-20	1 1/2"	Partially Threaded	1 1/4"	000000000	0000
0.095"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
For 1 1/8" Tube OD
0.058"	1/2"-20	1 1/2"	Partially Threaded	1 1/4"	000000000	0000
0.058"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
0.065"	1/2"-20	1 1/2"	Partially Threaded	1 1/4"	000000000	0000
0.065"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
0.083"	1/2"-20	1 1/2"	Partially Threaded	1 1/4"	000000000	0000
0.083"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
0.083"	3/4"-16	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
0.095"	1/2"-20	1 1/2"	Partially Threaded	1 1/4"	000000000	0000
0.095"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
0.095"	3/4"-16	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
For 1 1/4" Tube OD
0.095"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	00000
0.095"	3/4"-16	1 1/2"	Fully Threaded	1 1/2"	000000000	00000
0.12"	5/8"-18	1 7/8"	Partially Threaded	1 9/16"	000000000	00000
0.12"	3/4"-16	1 7/8"	Fully Threaded	1 7/8"	000000000	00000
For 1 3/8" Tube OD
0.095"	5/8"-18	1 7/8"	Partially Threaded	1 5/8"	000000000	00000
0.095"	3/4"-16	1 7/8"	Fully Threaded	1 7/8"	000000000	00000
0.12"	5/8"-18	1 7/8"	Partially Threaded	1 5/8"	000000000	00000
0.12"	3/4"-16	1 7/8"	Fully Threaded	1 7/8"	000000000	00000
For 1 1/2" Tube OD
0.095"	5/8"-18	1 7/8"	Partially Threaded	1 5/8"	000000000	00000
0.095"	3/4"-16	1 7/8"	Fully Threaded	1 7/8"	000000000	00000
0.12"	3/4"-16	2"	Partially Threaded	1 7/8"	000000000	00000
0.12"	7/8"-14	2"	Fully Threaded	2"	000000000	00000
0.25"	3/4"-16	2"	Fully Threaded	2"	000000000	00000
0.25"	7/8"-14	2"	Fully Threaded	2"	000000000	00000
For 1 3/4" Tube OD
0.12"	3/4"-16	2"	Fully Threaded	2"	000000000	00000
0.12"	1"-14	2"	Fully Threaded	2"	000000000	00000
0.12"	1 1/4"-12	2"	Fully Threaded	2"	000000000	00000
0.12"	7/8"-14	2"	Fully Threaded	2"	000000000	00000
0.25"	3/4"-16	2"	Partially Threaded	1 7/8"	000000000	00000
0.25"	1"-14	2"	Fully Threaded	2"	000000000	00000
0.25"	7/8"-14	2"	Fully Threaded	2"	000000000	00000
For 2" Tube OD
0.25"	1 1/4"-12	3 1/4"	Fully Threaded	3 1/4"	000000000	00000

Left-Hand Threaded Tube-End Weld Nuts

Use these tube-end nuts with left-hand threaded fasteners. You can weld them to round uncoated metal tubes to attach threaded parts, such as rod ends. Also known as tube adapters and weldable threaded tube ends.

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

4130 Alloy Steel
For Tube Wall Thick.	Thread Size	Ht.	Threading	Thread Lg.		Each
For 3/8" Tube OD
0.058"	10-32	1"	Fully Threaded	1"	000000000	00000
For 1/2" Tube OD
0.058"	1/4"-28	1"	Fully Threaded	1"	000000000	0000
0.058"	5/16"-24	1"	Fully Threaded	1"	000000000	0000
For 5/8" Tube OD
0.058"	5/16"-24	1"	Partially Threaded	3/4"	000000000	0000
0.058"	3/8"-24	1"	Partially Threaded	3/4"	000000000	0000
0.058"	7/16"-20	1"	Fully Threaded	1"	000000000	0000
For 3/4" Tube OD
0.058"	5/16"-24	1"	Partially Threaded	3/4"	000000000	0000
0.058"	3/8"-24	1"	Fully Threaded	1"	000000000	0000
0.058"	7/16"-20	1"	Fully Threaded	1"	000000000	0000
0.065"	5/16"-24	1 3/8"	Partially Threaded	7/8"	000000000	0000
0.065"	3/8"-24	1 3/8"	Partially Threaded	15/16"	000000000	0000
0.065"	7/16"-20	1 3/8"	Partially Threaded	1 1/8"	000000000	0000
For 7/8" Tube OD
0.058"	3/8"-24	1 3/8"	Partially Threaded	1"	000000000	0000
0.058"	7/16"-20	1 3/8"	Partially Threaded	1 1/8"	000000000	0000
0.058"	1/2"-20	1 3/8"	Partially Threaded	1 1/4"	000000000	0000
0.065"	3/8"-24	1 3/8"	Partially Threaded	1"	000000000	0000
0.065"	7/16"-20	1 3/8"	Partially Threaded	1"	000000000	0000
0.065"	1/2"-20	1 3/8"	Partially Threaded	1 1/4"	000000000	0000
0.083"	3/8"-24	1 1/2"	Partially Threaded	1"	000000000	0000
0.083"	7/16"-20	1 1/2"	Partially Threaded	1 1/8"	000000000	0000
0.083"	1/2"-20	1 1/2"	Partially Threaded	1 1/4"	000000000	0000
For 1" Tube OD
0.058"	3/8"-24	1 1/2"	Partially Threaded	1"	000000000	0000
0.058"	1/2"-20	1 1/2"	Partially Threaded	1 1/4"	000000000	0000
0.058"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
0.065"	3/8"-24	1 1/2"	Partially Threaded	1"	000000000	0000
0.065"	7/16"-20	1 1/2"	Partially Threaded	1"	000000000	0000
0.065"	1/2"-20	1 1/2"	Partially Threaded	1 1/4"	000000000	0000
0.065"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
0.083"	3/8"-24	1 1/2"	Partially Threaded	1"	000000000	0000
0.083"	1/2"-20	1 1/2"	Partially Threaded	1 1/4"	000000000	0000
0.083"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
0.095"	3/8"-24	1 1/2"	Partially Threaded	1"	000000000	0000
0.095"	7/16"-20	1 1/2"	Partially Threaded	1"	000000000	0000
0.095"	1/2"-20	1 1/2"	Partially Threaded	1 1/4"	000000000	0000
0.095"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
For 1 1/8" Tube OD
0.058"	1/2"-20	1 1/2"	Partially Threaded	1 1/4"	000000000	0000
0.058"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
0.065"	1/2"-20	1 1/2"	Partially Threaded	1 1/4"	000000000	0000
0.065"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
0.083"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
0.083"	3/4"-16	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
0.095"	1/2"-20	1 1/2"	Partially Threaded	1 1/4"	000000000	0000
0.095"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
0.095"	3/4"-16	1 1/2"	Fully Threaded	1 1/2"	000000000	0000
For 1 1/4" Tube OD
0.095"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	00000
0.095"	3/4"-16	1 1/2"	Fully Threaded	1 1/2"	000000000	00000
0.12"	5/8"-18	1 7/8"	Partially Threaded	1 9/16"	000000000	00000
0.12"	3/4"-16	1 7/8"	Fully Threaded	1 7/8"	000000000	00000
For 1 3/8" Tube OD
0.095"	5/8"-18	1 1/2"	Fully Threaded	1 1/2"	000000000	00000
0.095"	3/4"-16	1 7/8"	Fully Threaded	1 7/8"	000000000	00000
0.12"	5/8"-18	1 7/8"	Partially Threaded	1 5/8"	000000000	00000
0.12"	3/4"-16	1 7/8"	Fully Threaded	1 7/8"	000000000	00000
For 1 1/2" Tube OD
0.095"	5/8"-18	1 7/8"	Partially Threaded	1 5/8"	000000000	00000
0.095"	3/4"-16	1 7/8"	Fully Threaded	1 7/8"	000000000	00000
0.12"	3/4"-16	2"	Partially Threaded	1 7/8"	000000000	00000
0.25"	3/4"-16	2"	Fully Threaded	2"	000000000	00000
0.25"	7/8"-14	2"	Fully Threaded	2"	000000000	00000
For 1 3/4" Tube OD
0.12"	3/4"-16	2"	Fully Threaded	2"	000000000	00000
0.12"	1"-14	2"	Fully Threaded	2"	000000000	00000
0.12"	1 1/4"-12	2"	Fully Threaded	2"	000000000	00000
0.25"	3/4"-16	2"	Partially Threaded	1 7/8"	000000000	00000
0.25"	7/8"-14	2"	Fully Threaded	2"	000000000	00000
0.25"	1"-14	2"	Fully Threaded	2"	000000000	00000
For 2" Tube OD
0.25"	1 1/4"-12	3 1/4"	Fully Threaded	3 1/4"	000000000	00000

Tube-Connecting Nuts

Create strong joints in metal and plastic round tubes. Clips on both ends grip the sides of the tube to hold the nut in place. A zinc plating provides corrosion resistance in wet environments.

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

Zinc-Plated Steel
For Tube ID	For OD	Thread Size	Lg.	Retaining Clip Material	Pkg. Qty.		Pkg.
0.53" to 0.54"	5/8"	1/4"-20	0.27"	Steel	5	000000000	000000
0.62" to 0.65"	3/4"	1/4"-20	0.23"	Steel	10	000000000	00000
0.62" to 0.65"	3/4"	5/16"-18	0.31"	Steel	10	000000000	00000
0.72" to 0.74"	3/4"	1/4"-20	0.23"	Steel	10	000000000	0000
0.75" to 0.77"	7/8"	1/4"-20	0.23"	Steel	10	000000000	00000
0.85" to 0.87"	1"	1/4"-20	0.23"	Steel	5	000000000	0000
0.87" to 0.9"	1"	1/4"-20	0.23"	Steel	10	000000000	00000
0.87" to 0.9"	1"	5/16"-18	0.32"	Steel	10	000000000	00000
0.87" to 0.9"	1"	3/8"-16	0.4"	Steel	5	000000000	0000
1" to 1.02"	1 1/8"	1/4"-20	0.22"	Steel	5	000000000	00000
1.12" to 1.15"	1 1/4"	1/4"-20	0.2"	Steel	10	000000000	00000
1.12" to 1.15"	1 1/4"	5/16"-18	0.4"	Steel	10	000000000	00000
1.2" to 1.21"	1 1/4"	3/8"-16	0.4"	Steel	5	000000000	0000
1.25" to 1.27"	1 3/8"	1/4"-20	0.27"	Steel	5	000000000	00000
1.33" to 1.34"	1 3/8"	5/16"-18	0.24"	Steel	5	000000000	0000
1.37" to 1.4"	1 1/2"	1/4"-20	0.27"	Steel	5	000000000	00000
1.37" to 1.4"	1 1/2"	5/16"-18	0.41"	Steel	5	000000000	00000
1.62" to 1.65"	1 3/4"	1/4"-20	0.25"	Steel	5	000000000	00000
1.7" to 1.71"	1 3/4"	5/16"-18	0.27"	Steel	5	000000000	0000
1.93" to 1.94"	2"	1/4"-20	0.22"	Steel	5	000000000	00000
1.97" to 1.98"	2"	5/16"-18	0.4"	Steel	1	000000000	0000