Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ISO4017-M8X25-12.9-A2D found under Screw Cap Hexagon H by International Organization. The National Stock Number assigned to this part is 5305015996027, and the Federal Supply Class is 5305 Screws. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ISO4017-M8X25-12.9-A2D.