M8-1.25 JIS Flange Nuts Small Hex M8x1.25 Nut 8mm x 1.25 Serrated Flange 10.9
JIS Hex Flange Nuts. Hex / Wrench Size: 12mm. Nut Height / Thickness:7.10mm ~ 8mm. Nut Specs NOT previously rejected for quality issues or rescued from a scrap yard. It is a lot easier to resolve problems one on one.