M20‑2.50 Metric Hex Flange Top Locknut, Class 10, DIN 6927 / DIN EN 1664, Plain Finish

The M20‑2.50 metric hex flange top locknut is manufactured from high‑strength Class 10 steel for reliable locking in heavy‑duty, vibration‑prone applications. Produced to DIN 6927 / DIN EN 1664 standards, it features a prevailing‑torque top‑lock design that resists loosening without the use of nylon inserts. The integrated flange distributes clamping force evenly and eliminates the need for a washer, while the plain finish is suitable for dry, non‑corrosive industrial, automotive, and mechanical metric coarse‑thread assemblies.