This is for one (1) quality marine grade stainless steel (AISI 316) 16mm (or M16) eye bolt. Each bolt is stamped 316 and laser etched M16 with the makers mark. The bolts are marked in the metric specification style of M16, which refers to the diameter of the thread. Not to be used for overhead lifting. AISI 316 stainless is a premium grade of stainless and is considered by many to be best in class. 316 stainless is corrosion resistant and very durable even in the harshest of conditions. Breaking Load Limit = 15400