1/4-14 x 4 Phillips Flat Self Tapping Screw Type AB Fully Threaded Zinc M20 It also has a jam

It also has a jam nut design

this nut features a heavy-duty construction that provides exceptional strength and resistance to wear and tear

and automotive projects

this rivet nut features a small head design that allows for a flush or nearly flush finish

and pergolas

1/4-14 x 4 Phillips Flat Self Tapping Screw Type AB Fully Threaded Zinc M20 It also has a jam1 4 14 x 4 Phillips Flat Self Tapping Screw Type AB Fully Threaded Zinc is a screw with a 1 4 14 thread size, a length of 4 inches, a Phillips drive, a flat head, and is self tapping. It is made of steel and has a zinc coating. It is fully threaded and has a Type AB point. This screw is commonly used in metal applications.