Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HBF3435 found under Screw Cap Hexagon Head by Dayton Walther Corp. The National Stock Number assigned to this part is 5305000100092, 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 HBF3435.