Features:

Material: Stainless steel, carbon steel, alloy steel, chromium-molybdenum steel, etc.
Surface Treatment: Trivalent zinc, trivalent white zinc, trivalent black zinc, trivalent rainbow zinc, black nickel, electroless nickel, zinc-nickel alloy, black oxide, etc.
Specification: Standard dimensions or custom dimensions
Description: The serrated design bites into the mating surface upon tightening, leaving shallow indentations that effectively resist loosening caused by vibration.