This ARP M12x1.25 12-point replacement nut is sold as a single fastener for use with compatible ARP studs and bolts. Presented as the correct M12x1.25 12pt nut option, it serves as a direct-fit replacement piece for assembly and repair where a single ARP-style 12-point nut is required, keeping the description focused on thread size and form factor.
ARP M12x1.25 Replacement 12pt Nut (one nut)