About Nuts, Materials, and Finishes
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T-Slotted Framing Fasteners
Screw and nut sets or nuts secure brackets and other accessories to rails.
Drop-in fasteners fit directly into the T-slot to attach components—no need to disassemble your existing structure. However, they form less secure connections than end-feed fasteners because less surface area touches the rail.
For technical drawings and 3-D models, click on a part number.
Self-aligning nuts have a ridge that keeps them centered in the T-slot.
Spring-loaded ball nuts hold themselves in place, so they won’t slide down vertical rails. The ball glides over holes, so they’re easy to reposition.
Offset nuts have a mounting hole close to one end, so you can install them next to corners and rail ends.
For Rail Ht. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Single | Double and Quad | Mounting Hole Location | Thread Size  | Thickness | Color | Material | Pkg. Qty. | Pkg. | |
Self-Aligning Spring-Loaded Ball Nut | |||||||||
| 20mm | 40mm | Offset | M3 | 0.181" | Silver | Zinc-Plated Steel | 4 | 0000000 | 00000 |
Metric Steel Hex Weld Nuts
The three weld points on these metric hex nuts create a secure hold on a steel surface. Weld them to sheet metal or thick steel surfaces to add strong, permanent threads. They stand up to high torque and pull force better than rivet nuts. Made of uncoated steel, there’s minimal prep required to weld them to uncoated steel surfaces. 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.
For technical drawings and 3-D models, click on a part number.
Thread | Collar | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Wd., mm | Ht., mm | Dia., mm | Ht., mm | For Hole Dia., mm | Specifications Met | Pkg. Qty. | Pkg. | |
Steel | ||||||||||
| M3 | 0.5 | 7.5 | 2.45 | 4.5 | 0.55 | 4.5 | DIN 929 | 100 | 000000000 | 000000 |
Metric Stainless Steel Hex Weld Nuts
You can weld these nuts to flat and uneven uncoated stainless steel surfaces for a strong permanent hold. They have a collar pilot that assists alignment and prevents welding spatter from getting into threads.
For technical drawings and 3-D models, click on a part number.
Thread | Collar | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Wd., mm | Ht., mm | Dia., mm | Ht., mm | For Hole Dia., mm | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||||
| M3 | 0.5 | 7.5 | 2.5 | 4.5 | 0.55 | 4.5 | DIN 929 | 100 | 000000000 | 000000 |