Jack Nuts / Petal Nut/ Rivet Nuts/ Expansion Plugs
Installation: They are installed into a pre-drilled hole. As a screw is tightened into the jack nut, the body of the nut expands (the "petals" flare out) and clamps firmly against the back of the material. This creates a secure, threaded socket.
Sizes: They are commonly available in metric sizes like M4, M5, and M6, as you mentioned.
Applications: They are used in a wide range of applications, including:
Mounting fixtures to walls (like curtain rods, light fixtures, and shelves)
Automotive trim and panel fastening
Appliance assembly
Electronics enclosures
Furniture construction
