Cap Nuts Fine Thread 1/4-28
Acorn-style cap nuts with 1/4-28 UNF fine threads and closed end for protecting bolt ends in exposed assemblies. Steel construction with various finishes; HTS 7318.16.0085 as 'other' nuts. Prevents dirt ingress and improves appearance.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If machine screw size range
Smaller UNF threads align with machine screw nuts.
If base metal mountings for furniture
Functional hardware classification.
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Import Tips & Compliance
• Fine thread requires precise pitch verification
• Specify cap closure type (closed vs dome)
• Plating adhesion testing prevents corrosion claims
Related Products under HTS 7318.16.00.85
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