Best Weld Nuts of 2026

Brian Howie Avatar
Brian Howie
Last Updated: Jan 8, 2026

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Weld nuts are specialized fasteners designed to be welded onto metal surfaces, providing a strong and secure connection point. These nuts feature a specially designed flange or base that can be easily welded onto the workpiece, allowing for easy installation. They are commonly used in applications where a threaded connection is required but tapping or drilling a hole is not feasible. Weld nuts are available in various shapes and sizes, making them versatile for a wide range of industrial and automotive applications.

At a Glance: Our Top Picks

Small Parts 37NWS2 Spot Weld Center Hole Tab Weld Nut Plain Cover #TOP 1
Small Parts 37NWS2 Spot Weld Center Hole Tab Weld Nut Plain
ftb score rating icon 9.9
Small Parts 31NWS2 Weld Nut Cover #TOP 2
Small Parts 31NWS2 Weld Nut
ftb score rating icon 9.8
uxcell M6 Square Weld Nuts Carbon Steel 100pcs Cover #TOP 3
uxcell M6 Square Weld Nuts Carbon Steel 100pcs
ftb score rating icon 9.6

Top 10 Weld Nuts

#TOP 1

Small Parts 37NWS2 Spot Weld Center Hole Tab Weld Nut Plain

37NWS2
Black
Onesize
Small Parts 37NWS2 Spot Weld Center Hole Tab Weld Nut Plain Cover
Small Parts 37NWS2 3/8"-16 Spot Weld Center Hole Tab Weld Nut Plain (Pack of 20)

The Small Parts Weld Nut is a versatile and reliable tool for all your welding needs. With its convenient package dimensions of 5 L x 1 H x 5 W inches, it is easy to store and transport. Weighing only 0.65 pounds, it is lightweight and won't add unnecessary bulk to your work. Made in Taiwan, Province Of China, you can trust its quality and durability. The 3/8"-16 spot weld center hole tab is a valuable feature that allows for precise and accurate welding. Whether you are a professional welder or a DIY enthusiast, this weld nut will make your projects easier and more efficient. Get the Small Parts Weld Nut and experience the convenience and reliability it offers.

What We Like
Convenient package dimensions
Lightweight
Precise and accurate welding
#TOP 2

Small Parts 31NWS2 Weld Nut

31NWS2
Black
5/16"-18
Small Parts 31NWS2 Weld Nut Cover
Small Parts 31NWS2 5/16"-18 Spot Weld Center Hole Tab Weld Nut Plain (Pack of 20)

The Small Parts Weld Nut is designed for reliable performance in various welding applications. With compact dimensions of 5 x 1 x 5 inches, it fits easily into tight spaces, making it convenient for your projects. Weighing only 0.65 pounds, this product is lightweight, which simplifies handling during installation. Manufactured in Taiwan, this weld nut ensures quality and durability. The part number 31NWS2 makes it easy to identify and reorder when needed, streamlining your shopping experience.

What We Like
Compact size
Lightweight design
High durability
Easy identification
#TOP 3

uxcell M6 Square Weld Nuts Carbon Steel 100pcs

a24052100ux1954
Gray
uxcell M6 Square Weld Nuts Carbon Steel 100pcs Cover
uxcell Weld Nuts, M6 Square UNC Carbon Steel Machine Screw Gray 100Pcs

The uxcell M6 Weld Nuts are made from durable carbon steel, ensuring strong and reliable connections for your projects. With a thread size of M6-1mm and UNC threading, these nuts fit perfectly for various applications like furniture, shelves, and vehicle parts. Measuring 10mm wide and 6mm high, they provide a compact yet sturdy fastening solution. These nuts are designed for easy welding, so you can clean and prepare the surface, adjust the nut's position, and complete the weld for a secure hold. This makes them ideal for DIYers and professionals looking for accurate and dependable weld nuts.

What We Like
Durable carbon steel
Accurate M6-1mm UNC threads
Compact 10mm x 6mm size
Easy welding process
Versatile application use
#TOP 4

Small Parts 50NWS2 Weld Nuts

50NWS2
Black
1/2'-13, 0.5 inches
Small Parts 50NWS2 Weld Nuts Cover
Small Parts 50NWS2 1/2"-13" Spot Weld Center Hole Tab Weld Nut Plain (Pack of 10)

The Small Parts Weld Nuts are a versatile solution for your fastening needs. Weighing just 0.54 lbs, they are easy to handle and transport, making your projects more efficient. This pack contains ten nuts, providing you with ample supply for various applications. Manufactured in Taiwan, these nuts are designed to offer reliability and strength, ensuring your welds hold up under pressure. With their specific design for spot welding, you can achieve secure connections effortlessly, enhancing the overall quality of your work.

What We Like
Lightweight for easy handling
Includes ten nuts per pack
Reliable strength and durability
Designed for spot welding
#TOP 5

Magic Hub 1/4-20 Spot Weld Nuts

Brown
Magic Hub 1/4-20 Spot Weld Nuts Cover
10 Pack 1/4-20 Spot Weld Nuts - Double Tab - Center Hole Design Spot Weld Nut - Low-Carbon Steel (10)

The Magic Hub Spot Weld Nuts are designed with a thread size of 1/4-20, making them ideal for various applications. Their 1/2-inch width ensures a secure fit, while the 1/8-inch thickness provides durability and strength. With a length of 1-1/8 inches, these nuts offer versatility in tight spaces. The center hole design allows for easy placement in sheets with a hole diameter of 0.312 inches, making installation straightforward. These features make the weld nuts a reliable choice for securing components in your projects.

What We Like
Durable low-carbon steel
Easy installation
Versatile size
Secure fit
#TOP 6

uxcell M6 Weld Nuts 10Pcs

a18102700ux0007
Silver
uxcell M6 Weld Nuts 10Pcs Cover
uxcell Weld Nuts,M6 Tab Base UNC Carbon Steel Machine Screw 2 Projection Silver 10Pcs

The uxcell Weld Nuts are designed for various threaded connections, making them ideal for applications like furniture assembly and vehicle maintenance. With a thread size of M6 x 1mm and a robust carbon steel construction, these nuts ensure durability and strength. You will appreciate the flat solder joints that facilitate easier and more reliable welding. Additionally, the accurate thread size allows for a precise fit, enhancing the overall stability of your projects. This pack includes 10 nuts, providing you with ample supply for your tasks.

What We Like
Durable carbon steel material
Accurate thread size
Flat solder joints
Versatile applications
#TOP 7

uxcell 7/16-20 Carbon Steel Weld Nuts

a18102700ux0013
Silver
#7/16
uxcell 7/16-20 Carbon Steel Weld Nuts Cover
uxcell Weld Nuts,7/16-20 Tab Base Carbon Steel Machine Screw 4 Projection Silver 10Pcs

The uxcell Weld Nuts are made from durable carbon steel with a 7/16-20 UNC thread size, offering strong and precise connections for your projects. Measuring 21mm wide and 13mm high, these nuts fit well in various applications like furniture, shelves, and vehicle parts. The carbon steel material ensures good weldability, making the installation process easier and more reliable. With a grade 4.8 strength rating, these weld nuts provide solid support and durability, helping you achieve secure and long-lasting threaded joints.

What We Like
Accurate thread size
Good weldability
Durable carbon steel
Versatile application
Compact size
#TOP 8

uxcell M6 Weld Nuts

a18102700ux0008
Dark Grey,Silver
uxcell M6 Weld Nuts Cover
uxcell M6 Carbon Steel Slab Base T-Shaped 2 Projection Weld Nuts Pack of 25

The uxcell M6 Carbon Steel Slab Base T-Shaped 2 Projection Weld Nuts Pack of 25, also known as the uxcell M6 Nuts, are made of carbon steel in a dark grey color, making them sturdy and durable. With a thread size of M6 x 1mm, these nuts have a size of 23 x 14 x 8mm (LWH) and a solder joint height of 1mm. Designed to stand off the material to allow easy weld penetration, these weld nuts are widely used in industrial machines. The uxcell M6 Nuts provide convenience and efficiency in welding tasks, thanks to their sturdy construction and precise thread size. Their compact size allows for easy installation and their dark grey color adds a sleek look to any machine. With their reliable performance, these weld nuts are a great addition to any industrial setting.

What We Like
Sturdy and durable
Precise thread size
Compact size
#TOP 9

Swpeet 32Pcs Weld Nuts Kit

S4194
Gray
Assortment Kit
Swpeet 32Pcs Weld Nuts Kit Cover
Swpeet 32Pcs M6 M8 M10 M12 Black T-Shaped Weld Nuts Kit, Tab Base UNC Carbon Steel Machine Screw, Welding Hood Fasteners Ideal for Furniture Vehicles Caster and Industry Machine

The Swpeet Weld Nuts Set includes 32 pieces of durable weld nuts in various sizes, perfect for connecting threaded components. Made from high-quality carbon steel, these nuts resist corrosion and maintain their shape, ensuring longevity in both indoor and outdoor applications. Their design features smooth surfaces and clear threads for easy installation, allowing you to securely fasten furniture and appliances. With multiple welding points, you can enjoy a strong hold and reliable performance, making this kit an essential addition to your toolbox for any project.

What We Like
Durable carbon steel construction
Corrosion-resistant and long-lasting
Easy installation and disassembly
Wide range of applications
#TOP 10

uxcell M8 UNC Carbon Steel Weld Nuts

a18102700ux0010
Silver
uxcell M8 UNC Carbon Steel Weld Nuts Cover
uxcell Weld Nuts,M8 Tab Base UNC Carbon Steel Machine Screw 4 Projection Silver 10Pcs

The uxcell M8 Weld Nuts are designed with an M8 x 1.25mm UNC thread size, making them compatible with various threaded connections. Made from durable carbon steel with a grade 4.8 rating, these nuts offer strong and reliable performance for your projects. Measuring 16mm wide and 10mm high, they fit well in applications like furniture, shelves, and vehicle parts. To ensure a secure weld, you clean the surface first, apply a small weld to align the nut, and then complete the weld for a sturdy hold. This process ensures precise thread alignment and a strong connection for your needs.

What We Like
Accurate thread size
Durable carbon steel
Good weldability
Compact size
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is the purpose of a weld nut?

The purpose of a weld nut is to serve as a fastener that can be welded to another component in an assembly. By welding the nut, it forms a strong bond, replacing the need for sheet metal screws in thin sheet metal applications.

2. What nuts can I weld?

There are various types of weld nuts that can be welded, including round weld nuts, square projection weld nuts, tab spot weld nuts, tab projection weld nuts, hex-3 projection weld nuts, hex-6 projection weld nuts, flange weld nuts, stamped flange weld nuts, and floating cage weld nuts. These different types of weld nuts offer versatility for different applications.

3. How strong are weld nuts?

Weld nuts are designed to be strong and able to withstand high pressure situations. They come with a high torque value, making them suitable for heavy-duty industrial applications. Weld nuts can handle high-pressure situations with ease, providing a reliable and sturdy fastening solution.

4. Can you weld regular nuts?

Regular nuts, such as structural nuts or those with high carbon content, are generally not recommended for welding. Structural nuts gain their strength through heat treating and should not be welded. Non-structural nuts are often made from steel that is not weldable due to its high carbon content.

5. Are welds as strong as bolts?

Welded joints are typically stronger than bolted joints. Welded joints do not have the perforations needed for bolted joints, resulting in higher strength. The manufacturing process plays a significant role in joint strength, with bolted joints offering simplicity, but welded joints providing superior strength.

Editor's Notes

During our weld nut research, we found 24 weld nut products and shortlisted 10 quality products. We collected and analyzed 2,905 customer reviews through our big data system to write the weld nuts list. We found that most customers choose weld nuts with an average price of $8.45.

The weld nuts are available for purchase. We have researched hundreds of brands and picked the top brands of weld nuts, including Small Parts, uxcell, Magic Hub, Swpeet. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
Brian Howie Avatar

Brian Howie is a content writer and senior industrial designer. After graduation from Westminster College, he has been engaged in product design and manufacturing for 18 years. Brian Howie has always found great pleasure in designing industrial products and sharing his ideas and experience online.