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This single ARP head stud is specified as M11 x 1.5 and 7/16-20 CA625+ construction, supplied as an individual head stud for high-load engine applications. The CA625+ designation indicates a high-strength alloy chosen for cylinder head retention where reliable clamping is essential. Offered as a single replacement piece, it suits rebuilds or repairs that require the exact sizes listed.
ARP M11 X 1.5 & 7/16-20 CA625+ Head Stud - Single
