Material: Pure copper construction with no surface treatment for natural appearance.
Size: Available in M3 to M20 metric thread sizes for versatility.
Protection: Covers threaded ends to prevent rust, damage, dirt, and injury from sharp screw ends.
Compatibility: Works with standard machine screws including cylindrical, round head, countersunk, and hex types.
Applications: Suitable for mechanical, automotive, wood, steel, and furniture uses both indoors and outdoors.
These blind hex cap nuts are crafted from 304 stainless steel with low-profile closed dome structure, functioning as both fastening hardware and thread protective cover.
Slim dimension and standard hex shape fit narrow-space installation, widely applicable in auto maintenance, furniture setup, electronic assembly and various daily DIY fixing work.
Description
The copper cap nut is a decorative nut with a round head and an internal metric blind hole thread. Made of pure copper with no surface treatment, it comes in sizes M3 to M20. It protects threaded ends from rust, damage, and dirt, and reduces injury risk from sharp screw ends. Compatible with standard screws such as cylindrical, round head, countersunk, and hex machine screws.
