UNC flange locknuts are high-strength fasteners featuring an integrated, wide washer base and a self-locking mechanism (often serrated teeth or deformed threads) to prevent loosening under vibration.
They eliminate the need for separate washers, reducing assembly time, and use Unified National Coarse (UNC) threads for fast, reliable, and secure fastening
Excellent for bridging oversized or irregular holes due to the wide flange.
