Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DIN7991 M8X40A3D found under Screw Cap Socket He by Haacon Hebetechnik Gmbh. The National Stock Number assigned to this part is 5305123108740, 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 DIN7991 M8X40A3D.