Matchcode explanation

Art.-Nr.=06016406 (xxxxx406=Surface specification) - Skt=Hexagon nut - M4=Metric thread size 4mm - Across flats=7mm x Nut thickness=3,2mm - 2Fac=Double Chamfer - BIW=Locking feature - -8=Class 8 Specials: V=All metal lock, N=Nylock ring, -L=left hand thread, MK=Microencapsulation