12-Point Nut, Chrome Moly Black Oxide AR300-8324 Product:1/2" UNF Thread, 9/16" Socket (2-Pack) They have a working pressure

They have a working pressure of 3000 psi and are a perfect choice for brake

Corse Thread (Under Cut)

45° NPT Female to Male NPT Fitting 1/4"Black Finish

10 Gallon Steel Portable Air Tank - Black (125 PSI Max)Tank Dimensions: 21-1/16" (535mm) x 14-11/64" (360mm)

AF533-10BLK

12-Point Nut, Chrome Moly Black Oxide AR300-8324 Product:1/2" UNF Thread, 9/16" Socket (2-Pack) They have a working pressure12 Point Nut, Chrome Moly Black Oxide1 2" UNF Thread, 9 16" Socket (2 Pack) AR300 8324 300 8324 Available in a variety of sizes to suit your needs, all ARP 12 point nuts are constructed from 8740 chrome moly steel or ARP Stainless, and meet ARP's highest standards of quality. Rated at 180,000 psi tensile strength, ARP 12 point nuts are manufactured in thick wall versions for optimum strength and rigidity and thin wall versions for applications with