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, 3/8 in.-24 Thread, 180000psi, Each

ARP Nut, 12-point, 8740 Chromoly, Steel, Black, 3/8 in.-24 Thread, 180000psi, Each

$3.68

ARP Nut, Hex, 8740 Chromoly, Steel, Black, Flanged, 7/16 in.-20 Thread, 180000psi, Set of 10

ARP Nut, Hex, 8740 Chromoly, Steel, Black, Flanged, 7/16 in.-20 Thread, 180000psi, Set of 10

$41.25

ARP Nut, 12-point, 8740 Chromoly, Steel, Black, 12mm x 1.75 Thread, 180000psi, Set of 2

ARP Nut, 12-point, 8740 Chromoly, Steel, Black, 12mm x 1.75 Thread, 180000psi, Set of 2

$19.20

ARP Nut, 12-point Reduced Wrenching, Carbon Steel, Cadmium/Chromate, Self Locking, 1/4 in.-28 Thread, Each

ARP Nut, 12-point Reduced Wrenching, Carbon Steel, Cadmium/Chromate, Self Locking, 1/4 in.-28 Thread, Each

$6.09

ARP Nut, 12-point Reduced Wrenching, Carbon Steel, Cadmium/Chromate, Self Locking, 3/8 in.-24 Thread, Each

ARP Nut, 12-point Reduced Wrenching, Carbon Steel, Cadmium/Chromate, Self Locking, 3/8 in.-24 Thread, Each

$6.09