Fits GM LS Engines;GM LS Bolt Sets for Water Pump & Water Neck; Stainless Steel – Corrosion Resistant; Hex Head Style Bolts; Includes Small Diameter Stainless Steel AN Washers; Finish - Natural; Improves The Look of GM LS Engines; Replace Missing or Worn OEM Fasteners; Skin Packaged – Suitable for Retail Display; Made in the USA;