<p>The screw adapter is made of brass with nickel plated for durability. It fits 3/8" threaded hole and 1/4" male thread. It comes with a washer to protect the camera base.</p> <p></p> <p>Package Included: </p> <p>1 x 1/4" Female to 3/8" Male Screw Adapter</p> <p>1 x 3/8" Female to 1/4" Male Screw Adapter</p>