Details + Specs This configuration is not available. Make another selection. Metric Stainless Knurled Thumb NutUniversal use Knurled Thumb Nut, can be installed or loosened without tools. DIN 466A1-50 Stainless SteelHigh Type / Collar, also known as Flat Knurled Round Nut with tapped through hole Technical Drawing This configuration is not available. Make another selection. 3D Models This configuration is not available. Make another selection. Downloadable Resources This configuration is not available. Make another selection.