About Nuts, Materials, and Finishes
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Steel Hex Weld Nuts
With three weld points, these hex weld nuts create a secure hold on steel surfaces. They stand up to high torque and pull force better than rivet and press-fit nuts, making them the strongest way to add permanent threads to sheet metal. You can also install them on thick pieces of metal. Made of uncoated steel, they require minimal prep for welding to uncoated steel surfaces. All have a collar pilot to guide the nut into the hole and hold it in place while welding. This also protects the threads from weld spatter.
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.
Steel Screw-Locking Hex Weld Nuts
Irregularly shaped threads in these nuts form a tight grip, preventing screws from backing out in vibration-heavy environments. These weld nuts stand up to high torque and pull force better than rivet and press-fit nuts, making them the strongest way to add threads to sheet metal. They can be welded onto thick metal surfaces, too. To protect their threads from deforming, these nuts have three projections that concentrate your weld and create room for heat to dissipate. A collar pilot guides the nut into the hole, lightly holds it in place during welding, and protects threads from spatter.
These nuts are designed for use with Grade 2 or Class 6 screws. Use screws that have a similar strength rating to avoid stripping threads during installation. Screw-locking threads require high torque for fastening and unfastening, so you may need an impact wrench to remove screws.
For technical drawings and 3-D models, click on a part number.
Square Weld Nuts
Square weld nuts have more weld points than hex nuts for a stronger hold. Use them to add strong, permanent threads to uncoated steel surfaces. They stand up to more torque and pulling force than rivet nuts. These fasteners are uncoated, so they require minimal preparation before welding. All have a collar pilot that guides the nut into the hole, holds it in place while welding, and protects the threads from weld spatter.
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 | |||||||||
| 5/8"-11 | 7/8" | 7/16" | 25/32" | 0.094" | 51/64" | ASME B1.1 | 25 | 000000000 | 000000 |
Steel Narrow-Base Weld Nuts
Install threads in channels and other tight spaces where round-base weld nuts won’t fit. These steel weld nuts stand up to high torque and pull force better than rivet and press-fit nuts, making them the strongest way to add permanent threads to sheet metal. They can also be welded onto thick metals and molded into plastic surfaces. In plastic, their rectangular shape keeps them from twisting.
A base that’s flat on both sides allows these nuts to be welded in two orientations: either flush on a flat surface or with the barrel sticking through a hole. Twice as long as those on low-profile weld nuts, the standard-length barrel creates greater thread engagement.
Plain steel nuts can be welded to uncoated steel with less prep than zinc-plated steel nuts.
For technical drawings and 3-D models, click on a part number.
Base | Barrel | |||||||
|---|---|---|---|---|---|---|---|---|
| Thread Size | Lg. | Wd. | Thick. | Dia. | Ht. | Pkg. Qty. | Pkg. | |
Steel | ||||||||
| 5/8"-11 | 1 7/16" | 7/8" | 3/32" | 23/32" | 3/8" | 10 | 000000000 | 000000 |
Steel Round-Base Weld Nuts
A smooth base provides more contact with the mating surface than weld nuts with projections. Both sides of the weld nut base are flat, so it can be welded flush to a surface or with the barrel through the hole. Use them to add strong, permanent threads to uncoated steel surfaces. Its barrel is twice as long as low-profile weld nuts for added thread engagement. Because they’re welded on, they can stand up to more torque and pull force than rivet nuts.
Uncoated steel weld nuts can be welded on with minimal preparation.
Zinc-plated steel weld nuts are corrosion resistant in wet environments. They require some preparation before welding, such as grinding off the plating from the part of the nut you intend to weld.
For technical drawings and 3-D models, click on a part number.
Screw-Mount Nuts
These nuts have three mounting holes to accept screws and rivets. Insert the barrel through a hole or fasten the base with the barrel facing upward for use with thin materials. Since the base is flanged, it helps spread out the load. A larger base means more room for weight to spread. The longer the barrel, the more thread engagement with your screw.
Style B nuts can also be welded for a stronger, permanent hold. The three projections on their base concentrate your weld and create room for heat to dissipate, protecting threads from deforming.
For technical drawings and 3-D models, click on a part number.