Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Z12-7-H found under Screw Externally Re by W M Berg Inc. The National Stock Number assigned to this part is 5305009545303, 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 Z12-7-H.