Slim at the base, these weld nuts fit in channels and other spaces too tight for round-base weld nuts. Weld them to stainless steel surfaces to add strong, permanent threads that resist corroding from chemicals. With a barrel that’s twice as long as low-profile narrow-base weld nuts, more threads engage the fastener for a strong hold. Their base is smooth on both sides, allowing you to weld them either flush to a surface or with the barrel through a hole. Compared to rivet nuts, they stand up to higher torque and pull force.

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.

Weld these nuts to stainless steel surfaces to add strong, permanent threads that distribute force evenly. Their round base acts as a flange. Made of stainless steel, they resist corroding from chemicals. With a barrel that’s twice as long as low-profile round-base weld nuts, more threads engage with the fastener for a strong hold. A smooth base on both sides gives you the flexibility to weld them flush to a surface or with the barrel through a hole. Compared to rivet nuts, they stand up to higher torque and pull force.

Add strong threads to material that’s too difficult to drill or too thin to grip a threaded insert. These nuts are ideal for brittle plastics or tough composites, such as acrylic or carbon fiber. They have large holes in the base so that adhesive or resin can flow through, spread out, and create an extra-strong hold. You can also mold them into the surface of your material. Made of 316 stainless steel, they resist corrosion from salt water and harsh chemicals.

The base of these nuts acts like a flange, distributing pressure evenly across the mounting surface. The larger the base, the more that pressure is spread out; the smaller the base, the tighter the space these nuts can fit into. Taller nuts engage more of a screw’s threads than shorter nuts. Shorter nuts fit in low-clearance areas.