This listing includes 2 Old School Phosphate Coated Oil Pan Drain Plugs and 2 Washer Gaskets (correct, as pictured). Yes, these are the early style. These are pretty hard to find!
Oil Pan Bolt Details and Applications:
Thread: 1/2"-20
Hex: 9/16"
Length Under Head: 13/16"
Color (phosphate)
Mint Condition!
USA Seller!