GN 6303.1-NI Quick release knurled nuts Stainless Steel | Elesa+Ganter
Knurled Nuts M6 High Shape DIN 466 Stainless Steel A1 V1A VA Nut with Knurled Edge Handle Knob Lock Nuts VB Screws : Amazon.de: DIY & Tools
50pcs) DIN 466 M6 Knurled Thumb Nuts, High Type AISI 303 Stainless Steel, Ships Free in USA by Aspen Fasteners, ASSP046626: Amazon.com: Industrial & Scientific