<ul> <li>Front side - M48x0.7 female thread</li> <li>Rear side - M48x0.75 male thread</li> </ul> <p>Made of high quality aluminium alloy.</p> <p>Both male and female threads are made with large enough tolerances for compatibility with 0.7mm (36tpi) and 0.75mm pitch. So, you can use is as a pitch converter if necessary.</p>