Innensechskant-Schraube aus Edelstahl : Amazon.de: Baumarkt
Amazon.com: New Lon0167 8.8 Grade M10x35mm Full Threaded Left Hand Thread Hex Head Bolt Black 2pcs(8.8 Grade M10x35mm Linksgewinde Innensechskantschraube Schwarz 2St : Industrial & Scientific