M6 Serrated Flange Nuts (DIN 6923) - A4 Stainless Steel Serrated Flange Nuts feature a large base which is ideal for covering any inconsistencies such as unsymmetrical or oversized holes. The flange base of this nut also acts in place of a washer, distributing the force of the fastening over a larger surface area making it more secure. The additional slanted serrations on the flange of this nut, grip into the fastened surface to help prevent it from loosening. These Serrated Flange Nuts are made from A4 Marine Grade Stainless Steel which provides corrosion and oxidation resistance as well as increased resistance in harsh chemical and outdoor environments. For larger quantities or items not listed, please email and one of our team will provide you with a quotation. M6 Serrated Flange Nuts (DIN 6923) - A4 Stainless Steel