Nuts acc. DIN 934 Material: AISI 321 Cert. 3.1 M10 – 2000 pcs. M12 – 2500 pcs. Nuts acc. ASTM Material: A194Gr.4 Cert. 3.1 M16 – 2000 pcs. M20 – 4000 pcs. Delivery time: a.s.a.p.