CAMVATE 1/4" Female to 3/8" Male & 3/8"-16 Female to 1/4"-20 Male Screw Adapter for Tripod and Camera and Qr Plate/Adapter Brass - 0910 : Electronics 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. Package Included Binoculars Tripod CAMVATE 1/4"-20 Female To 3/8"-16 Male Adapter C0895 B&H Photo Tripod Screw The screw adapter fits standard 1/4 thread hole on the tripod,camera and QR plate. It is made of steel with nickel plated to resist rust. The Diameter of the base is 30mm. A rubber washer is available for free. Package included International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. ROZYARD Screw Adapter 1/4'' Female to 5/8 Male 3/8 Female to 5/8 Male Material:Steel with Nickel plated