Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3 4 10UNC 2AX2 250 IN LG STL found under Bolt Machine by American National Standards Inst. The National Stock Number assigned to this part is 5306013087440, and the Federal Supply Class is 5306 Bolts. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3 4 10UNC 2AX2 250 IN LG STL.