Torque Strut Question

When i was changing the spark plugs in my 2001 impala, when i removed the left torque strut (engine to radiator mount) i lost one of the nuts when i pulled out a bolt. Is this somehting special or can i get it from an auto parts or hardware store?

Thanks

Parts store, just bring the bolt.

It is just a 10mm x 1.5 nut.I know the metric bolt pitches by heart used in GMs mostly with out looking