Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DIN 913 ST M3X4 found under Setscrew by Metric And Multistandard Components. The National Stock Number assigned to this part is 5305013421993, 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 DIN 913 ST M3X4.