The SR-71 Mach 3 spy plane is built of titanium, with titanium nuts and bolts. The sockets also have to be made from titanium, because the nickel in standard sockets corrodes the titanium bolts.

Description: Heavy Hex Bolts Heavy Hex Bolts are manufactured in accordance with the Screw Thread Standards for Federal Services, the ANSI Standards (American National Standards Institute), the ...

This technology aims to enhance the strength and stability of structures compared to traditional methods like bolts and ...