Serrated

Serrations are on the flange of lock nuts to oppose loosening of nut after tightened into place.

Select Material OR Metric
18-8 Stainless
Serrated Hex - Flange Lock Nuts - 18-8 Stainless Steel
316 Stainless
Serrated Hex - Flange Lock Nuts - 316 Stainless Steel
Case-Hardened Steel
Case Hardened Steel
Grade 5
Grade 5 Serrated Flange Lock Nuts
Grade 8
Grade 8 Serrated Flange Lock Nuts
METRIC - DIN 6923
Metric Serrated Flange Lock Nuts
Serrated - Large Flange
Steel Large Flange Serrated Lock Nuts