These 316 stainless steel custom hi-lo screws are manufactured overseas and supplied to our customer on a blanket as-released purchase order basis. We originally supplied this 10 X 1/2 phil pan hi-lo in plain 316 stainless steel material but at some point our customer needed additional corrosion resistance in their application. At that point we had our on-hand supply barrel plated to the pictured chrome finish and all future imported parts would come in already tin-cobalt chrome plated. Domestic chrome finish, whether barrel plated or individually racked, typically has a much brighter finish than the finish found on large volume imported parts. Our import chrome finish is always RoHS compliant tin-cobalt based chrome.