System of Measurement System of Measurement |
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Thread Size Thread Size | Show |
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Thread Size Thread Size | Hide |
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Thread Type Thread Type |
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Material Material |
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Thread Direction Thread Direction |
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Right Hand | Left Hand |
Threading Threading |
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![]() | Fully Threaded |
![]() | Partially Threaded |
Thread Fit Thread Fit |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Thread Spacing Thread Spacing |
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Collar Diameter Collar Diameter |
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For Hole Diameter For Hole Diameter |
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Specifications Met Specifications Met |
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About Nuts, Materials, and Finishes
More
Square Weld Nuts
Square weld nuts have more weld points than hex weld nuts for a stronger hold. Weld them on flat uncoated steel surfaces. All have a collar pilot that assists alignment and prevents welding spatter from getting into threads.
Nuts that meet ASME B1.1 comply with specifications for dimensional standards.
For technical drawings and 3-D models, click on a part number.



Collar | |||||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Wd. | Ht. | Dia. | Ht. | For Hole Dia. | Specifications Met | Pkg. Qty. | Pkg. | |
Steel | |||||||||
7/16"-20 | 3/4" | 5/16" | 21/32" | 0.063" | 43/64" | ASME B1.1 | 25 | 000000000 | 000000 |
Steel Hex Weld Nuts



Weld these nuts to flat and uneven uncoated steel surfaces for a strong permanent hold. A collar pilot assists alignment and prevents welding spatter from getting into threads.
All nuts meet ASME B1.1 and comply with specifications for dimensional standards.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Wd. | Ht. | Dia. | Ht. | For Hole Dia. | Specifications Met | Pkg. Qty. | Pkg. | |
Steel | |||||||||
7/16"-20 | 3/4" | 21/64" | 21/32" | 0.05" | 43/64" | ASME B1.1 | 25 | 000000000 | 000000 |
Tube-End Weld Nuts


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.
For Tube Wall Thick. | Thread Size | Ht. | Threading | Thread Lg. | Each | |
4130 Alloy Steel | ||||||
---|---|---|---|---|---|---|
For 5/8" Tube OD | ||||||
0.058" | 7/16"-20 | 1" | Fully Threaded | 1" | 000000000 | 00000 |
For 3/4" Tube OD | ||||||
0.058" | 7/16"-20 | 1" | Fully Threaded | 1" | 000000000 | 0000 |
0.065" | 7/16"-20 | 1 3/8" | Partially Threaded | 1 1/8" | 000000000 | 0000 |
For 7/8" Tube OD | ||||||
0.058" | 7/16"-20 | 1 3/8" | Partially Threaded | 1 1/8" | 000000000 | 0000 |
0.065" | 7/16"-20 | 1 3/8" | Partially Threaded | 1" | 000000000 | 0000 |
0.083" | 7/16"-20 | 1 1/2" | Partially Threaded | 1 1/8" | 000000000 | 0000 |
For 1" Tube OD | ||||||
0.058" | 7/16"-20 | 1 1/2" | Partially Threaded | 1" | 000000000 | 0000 |
0.065" | 7/16"-20 | 1 1/2" | Partially Threaded | 1" | 000000000 | 0000 |
0.083" | 7/16"-20 | 1 1/2" | Partially Threaded | 1" | 000000000 | 0000 |
0.095" | 7/16"-20 | 1 1/2" | Partially Threaded | 1" | 000000000 | 0000 |
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.
For Tube Wall Thick. | Thread Size | Ht. | Threading | Thread Lg. | Each | |
4130 Alloy Steel | ||||||
---|---|---|---|---|---|---|
For 5/8" Tube OD | ||||||
0.058" | 7/16"-20 | 1" | Fully Threaded | 1" | 000000000 | 00000 |
For 3/4" Tube OD | ||||||
0.058" | 7/16"-20 | 1" | Fully Threaded | 1" | 000000000 | 0000 |
0.065" | 7/16"-20 | 1 3/8" | Partially Threaded | 1 1/8" | 000000000 | 0000 |
For 7/8" Tube OD | ||||||
0.058" | 7/16"-20 | 1 3/8" | Partially Threaded | 1 1/8" | 000000000 | 0000 |
0.065" | 7/16"-20 | 1 3/8" | Partially Threaded | 1" | 000000000 | 0000 |
0.083" | 7/16"-20 | 1 1/2" | Partially Threaded | 1 1/8" | 000000000 | 0000 |
For 1" Tube OD | ||||||
0.065" | 7/16"-20 | 1 1/2" | Partially Threaded | 1" | 000000000 | 0000 |
0.095" | 7/16"-20 | 1 1/2" | Partially Threaded | 1" | 000000000 | 0000 |