These Hex Serrated Flange Bolts (DIN 6921) are precision-engineered from A2 (304) stainless steel, offering excellent corrosion resistance, durability, and strength. The integrated serrated flange provides a secure, vibration-resistant fastening without the need for a washer, ensuring reliable performance in a wide range of industrial, automotive, and DIY applications.
✅ Standard: DIN 6921
✅ Material: A2 Stainless Steel (Grade 304)
✅ Head Type: Hex Flange with Serrated Face
✅ Thread: Metric Coarse
✅ Drive Type: Hex (Requires standard spanner or socket)
✅ Washer-Free Design: Serrations under the flange prevent loosening from vibration