Tuerca hexagonal Baja Acero Inox DIN 439 (M4) x10 : Amazon.es: Bricolaje y herramientas
meinschraubenversand.de - Hexagonal nuts (low shape, with chamfer) M4 according to DIN 439 / ISO 4035 - half nuts A2 V2A stainless steel - flat standard nut - M4 50 pieces : Amazon.de: DIY & Tools
1000pcs) DIN 439 M8X1 Hexagon Thin Nuts with Fine Pitch Thread A2 Stainless Steel, Ships Free in USA by Aspen Fasteners, ASSP043928-1: Amazon.com: Industrial & Scientific
Low nut DIN 439 - ISO 4035 - A2 V2A Stainless Steel : Amazon.co.uk: DIY & Tools