Amazon.com: Reducer Metric M10 M10X1.0 Male to M8 M8X1 Female Headless Adapter (2 Units) : Industrial & Scientific
Amazon.com: Five Thread ADAPTERS M10 10MM Male to M8 8MM Female Threaded REDUCERS : Industrial & Scientific
Amazon.com: HanTof TV Mount Hardware Kit,Universal VESA TV Mount Screws for TV and Monitor Mounts Bracket Fixing 24pcs M4 M6 M8 Stainless Steel Screws Washers : Electronics