6-20 x 1/4 Phillips Pan Thread Cutting Screw Type 25 Fully Threaded Black Oxide and Oil 1-72 while the lag thread ensures

while the lag thread ensures a strong hold in wood and other materials

and they are plain finished for a professional appearance

This 1/4-20 x 5/16 4 Prong Tee Nut is made of durable 18-8 stainless steel

The screw has a diameter of 5/16 inches and a length of 3 1/2 inches

Conforming to JISB 1111 standards

6-20 x 1/4 Phillips Pan Thread Cutting Screw Type 25 Fully Threaded Black Oxide and Oil 1-72 while the lag thread ensuresThese 6 20 x 1 4 Phillips pan thread cutting screws are Type 25 and fully threaded. They are made of steel and have a black oxide and oil finish. The screws have a sharp point and a single flute thread. They are designed for use in metal, plastic, and wood. The screws are self tapping, which means that they can create their own threads as they are driven into the material. They are also self drilling, which means that they can drill their own pilot