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Side front view of custom stamping part with self-clinching nuts, offering a clearer look at the shape and design.
Top view of custom stamping part with press-fit nuts, showing the layout of the self-clinching nuts and holes.
Bottom view of custom stamping part, showing the back of the self-clinching nuts and their attachment to the sheet metal.
Close-up view of the snap-top standoff on the custom stamping part, showing its design and function in an assembly.
Back view of the custom stamping part showing the bend relief area, providing a clearer perspective of the flat section beneath the relief slot.

Custom Stamping Part with Self-clinching Nuts

SKU: SHP309 Category:

Custom Stamping Part with Self-clinching Nuts

This custom stamping part features a metal enclosure with multiple self-clinching nuts. These nuts come in various types, some positioned close to the bend edges. The part is fabricated using stamping for the blanking process, followed by bending using a press brake (bending machine). This ensures a high level of precision for large-scale production of stamped metal parts.

Side front view of custom stamping part with self-clinching nuts, offering a clearer look at the shape and design.
Side front view of the custom stamping part and the self-clinching nuts/standoffs, offering a detailed look at its design and structure.
Alt Text: Bottom view of custom stamping part with multiple round holes before press-fit process, showing hole layout for press-fit nuts.
Bottom view of the custom stamping part, displaying multiple round holes prior to the press-fit process for installing the press-fit nuts.

Part specification

  • Dimensions: 265 x 176 x 13 mm

  • Material: Electro galvanized steel, 1.5mm thickness

  • Surface Treatment: None

Critical feature

Dimensional Tolerances

  • Hole Tolerance: ±0.02mm – The holes are designed to press-fit the self-clinching nuts, which requires high precision. Laser cutting does not offer the same accuracy as stamping, making it less suitable for this purpose.

  • Other Blanking Tolerances: ±0.05mm – Blanking is performed using stamping, which provides better precision and cost efficiency for large-scale production compared to laser cutting.

  • Bend Tolerances: ±0.20mm – The four edges are bent using a press brake, not a stamping die. The stamped edges are clean with minimal burrs, as seen in the photo.

Handling Self-Clinching Nuts Near Bend Edges

Some self-clinching nuts are placed close to the bend edges. To prevent deformation during bending, a “bend relief” or “bend notch” is created near the nut. This ensures the area around the hole remains flat and free of distortion.

Close-up of bend relief on custom stamping part, showing the flat area beneath the relief slot, with no bending in this section.
Close-up view of the bend relief on the custom stamping part, showing the flat area beneath the relief slot, ensuring no deformation during bending.
Back view of the custom stamping part showing the bend relief area, providing a clearer perspective of the flat section beneath the relief slot.
Back view of the custom stamping part showing the bend relief, offering a better understanding of the flat section beneath the relief slot for precise bending.

Material: Electro-Galvanized Steel

The material used is electro-galvanized steel (also known as zinc-coated steel or zintec steel). The part is stamped from blanks, which define its shape.

Surface Polishing to Conceal Scratches

One side of the part undergoes polishing, creating random, textured patterns on the surface. The polishing process not only removes minor burrs but also helps hide small scratches, improving the overall appearance.

Press-Fit Nut Process

The part features three types of press-fit components: self-clinching nuts, press-fit studs, and snap-top standoffs. For press-fitting, it’s crucial that the surface remains flat after the process. This is ensured through accurate hole dimensions and the press-fit process itself. The images clearly show that the flatness after press-fitting meets the required standards.

Close-up bottom view of the custom stamping part showing multiple round holes, providing a detailed view of the hole design before the press-fit process.
Close-up view of the bottom side of the custom stamping part, showing detailed round holes before the press-fit nuts are installed.
Close-up back view of custom stamping part showing self-clinching nuts with slight indentations near the nuts, generally meeting quality standards.
Close-up back view of the custom stamping part, showing the self-clinching nuts with minor indentations, confirming proper fit and alignment.

Note：A snap-top standoff is a type of standoff used in electronics and other assemblies. It is designed to be snapped into place onto a panel or board, offering a secure, stand-off spacer without requiring additional fasteners. These are commonly used to secure circuit boards or other components above surfaces, ensuring that components don’t come into contact with other parts or surfaces.

Close-up view of the snap-top standoff on the custom stamping part, showing its design and function in an assembly.
Close-up view of the snap-top standoff on the custom stamping part, showcasing its design and functionality in electronic assemblies.

A video of the press-fit process is available below for further details.

Contact Us for Custom Fabrication

We have extensive experience in sheet metal fabrication. If you have similar product manufacturing needs, please don’t hesitate to contact us.

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