320545 Our « Serrated washers » family has been designed to ensure secure fastening over time for all assembly challenges. It is usually used before a locknut, and acts as an anti-vibration device.It also prevents an inadvertently loosening. Category: Serrated washers Additional information Contact Form Additional information Ø External [d2] (mm) 12.40 Ø Internal [d1] (mm) 5.40 Maximum hardness [HV] 480 Minimum hardness [HV] 400 Screw diameter M 6 Thickness [e] (mm) 0.30 Number of teeth (min) 16 Contact FormLast name *First name *Company *Email *PhoneMessage *0 / 180 Send the message Related products 130301 100601 130604 120601