Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M16 DIN 580 found under Bolt Eye by Zelenda Machine And Tools Corp. The National Stock Number assigned to this part is 5306011472440, and the Federal Supply Class is 5306 Bolts. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like M16 DIN 580.