Hex Adapter: Male x Female, Inch to Inch, 5/16"-24 Male Thread Sz, 3/8"-16 Female Thread Sz, 18-8

Stainless steel male x female thread adapters resist corrosion and exposure to high temperatures. They have a threaded stud on one end and an internally threaded female connector on the other end, allowing them to join opposite-gender fasteners with differing thread sizes.