ARP hex nuts are made from aerospace-quality material. They are available in chromoly or stainless steel, with hex-style heads. They come in many sizes to meet just about all of your needs and are rated at 180,000 psi tensile strength.

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ARP Nut, 12-point, 8740 Chromoly, Steel, Black, 12mm x 1.25 Thread, 180000psi, Set of 10

ARP Nut, 12-point, 8740 Chromoly, Steel, Black, 12mm x 1.25 Thread, 180000psi, Set of 10

$89.71

ARP Nut, 12-point, 8740 Chromoly, Steel, Black, 5/16 in.-18 Thread, 180000psi, Set of 10

ARP Nut, 12-point, 8740 Chromoly, Steel, Black, 5/16 in.-18 Thread, 180000psi, Set of 10

$33.99

ARP Nut, 12-point, 8740 Chromoly, Steel, Black, 9mm x 1.25 Thread, 180000psi, Each

ARP Nut, 12-point, 8740 Chromoly, Steel, Black, 9mm x 1.25 Thread, 180000psi, Each

$9.42

Wilwood Nut, 5/16-24, Clinch

Wilwood Nut, 5/16-24, Clinch

$3.44