Industrial-grade flange nuts engineered for secure fastening with integrated washer surfaces to improve load distribution and resistance to loosening. Conforming to DIN 6923. Manufactured from high-strength carbon steel and stainless steel 304, with finishes including zinc-plated and hot-dip galvanized (HDG) for corrosion resistance. Ideal for structural, MEP, and mechanical applications requiring vibration resistance and enhanced surface contact.