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This ARP nut kit contains stainless-steel 12-point nuts specified as M11 x 1.2 and M13 WR, supplied for use where compact 12-point fastening is required. Packaged as a hardware kit, it provides replacement or upgrade fasteners for engine or assembly applications that call for the listed metric sizes and 12-point seating, offering a straightforward way to restore or enhance original hardware.
ARP M11 x 1.2 M13 WR SS 12pt Nut Kit
