Only 1 Alloy Aluminium Copper Stainless Steel M6 To M8 To M10 To M12 To M8 To M6 Connector Adapter Metric British Screw Thread - Fishing Tools - AliExpress
M10 Male - 8mm & M8 Female - 13mm Thread Adaptor (Total length: 21mm) 6473308 - Orbital Fasteners
Special thread adapters for Cerapuc and Ceraball > finite elemente