This is for (1) High Quality Navy Blue Stainless Steel (AISI 316) Type 804 US Shape 3/8" UNC Lifting Eye Nut. Each nut is stamped 316 and 3/8 inch (for size) The screws are manufactured in the US style of 3/8 inch UNC. Not for picking up overhead. AISI 316 stainless steel is a premium stainless steel and is considered the best class by many. 316 stainless steel is corrosion resistant and very durable even in the toughest conditions.