This is for one (1) quality marine grade stainless steel (AISI 316) UBolt M10 90mm in length. Each UBolt is stamped 316 and laser etched M10 with the makers mark. Each UBolt comes with a nut and washer for each side and the holding plate. 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.