M4-0.7 x 10mm Flat Head Socket Cap Screws Countersunk Bolts, Alloy Steel Grade 10.9, DIN 7991, Allen Socket Drive, 100 PCS: Amazon.com: Industrial & Scientific
900 pcs) Metric DIN 557 M6X1 Square Nut, Steel Zinc Steel Class 5 - Zinc Plated: Amazon.com: Industrial & Scientific
Tuercas cuadradas M6 DIN 557 de acero inoxidable A2 (100 unidades) : Amazon.es: Bricolaje y herramientas