M6 Male - 7mm & M8 Female - 12mm Thread Adaptor (Total length: 19mm) 6473008 - Orbital Fasteners
Adapter - 6mm Female to 8mm Male - F6-M8 - (Adaptor) – drophog.com
M8 8mm MALE TO M6 6mm Female Threaded Reducers (Four) – Mnpctech
5Pcs Thread Reducing Nut M10 Male to M8 Female Gooseneck Hose Adapter - Silver Tone - Bed Bath & Beyond - 38007907
M6*1 Male Thread/m8*1 Female Thread Straight Adapter/adaptor For Lubrication System/cnc Machine Centre - Pipe Fittings - AliExpress
Threaded Adaptors Bulk 1/2-20 RH Male Threads
1/4" 3/8" 5/8" M8 M6 Male To Female Thread Screw Mount Converter Adapter Mic Bracket Stand Tripod Plate Slr Camera Accessories - Photo Studio Kits - AliExpress
10Pcs Thread Adapter - M8/M9 Male To M5/M6 Female - Thread Reducer - Walmart.com
M8 8mm MALE TO M6 6mm Female Threaded Reducers (Four) – Mnpctech