Key Features: 1/2-13 12pt Nut Kit 10pk. Nut - 1/2-13 in Thread - 9/16 in 12 Point 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.
