DescriptionRetention KnobsRetention knob with through-hole DIN ISO 7388-3 form UDDiameter: 18.95 mmGeneral notes about the seriesVersionRetention knob with through-hole DIN ISO 7388-3 form UDTechnical data AZB SK40-45° ISO 7388-3 UDID:9938218Ø D1 [mm]:18.95D2 [mm]:12.95D3 [mm]:17L1 [mm]:44.5L2 [mm]:16.4L3 [mm]:11.5Angle W [°]:45G1:M16Weight [kg]:0.238