- HELP
- Technical Information
- [FA Mechanical Parts] Sheet Metal Parts
- Accuracy and Machining Specifications
- Quality Control of Nut Mounted Products
Quality Control of Nut Mounted Products
Regarding the appearance of nut mounted products
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Product with press-fit nut
- EN 1.0330 equiv. (Electrolytic Zinc Plating) and EN 1.0330 equiv. (Galvanized) may have some plating peeling due to nut mounting.
- Installation of nuts near the edge of the plate may cause the edge to swell.
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Product with weld (spot) nut
- For products with spot-welded nuts on steel materials,remove burns by using a file or similar tool. Scratch marks may appear due to the filing.
- EN 1.0330 equiv. (Electrolytic Zinc Plating) and EN 1.0330 equiv. (Galvanized) may have some plating peeling due to nut mounting.
Spot-welded nuts on stainless steel will be removed the burn marks by electrolytic polishing.Also, polishing to remove burns is not performed because it causes plating to peel off.
- The projection part of the weld nut may be eluted, but the following items are inspected to confirm that there is no problem with fastening.
Finish marks may remain.
- – Bolts can pass through
- – The projection part is not convex more than the material thickness
Regarding the Strength Warranty for Nut mounted Products
Product with press-fit nut
- We do not guarantee the strength of products with press-fit nuts, but we will ship them after confirming that there are no problems with fastening.
Product with weld (spot) nut
- We do not guarantee the strength of products with weld (spot) nuts, but we will ship them after confirming that there are no problems with fastening.In addition, periodic evaluations are conducted in accordance with JIS B1196.