Matchcode explanation

06003203 Vkt M4 8x2,5 oFac -04 Art.-Nr.=06003203 (xxxxx203=Surface specification) - Vkt=Square nut - M4=Metric thread size 4mm - Across flats=8mm x Nut thickness=2,5mm - oFac=No chamfer - -04=Class 04 Specials: V=All metal lock