Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M10-1.5X20L found under Screw Cap Hexagon H by Sae International. The National Stock Number assigned to this part is 5305016084544, 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 M10-1.5X20L.