Key Features: 1/4-28 Hex Nut w/Flange Kit (10pk). Nut - 1/4-28 in Thread - 7/16 in Hex Head - Chromoly - Black Oxide - Universal - Set of 10. AMCO AUTO PARTS, LLC. Back to top. State Restrictions. WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
