9 x M10 x 1.25 Exhaust Manifold Studs and Lock Nuts for Mazda MX-5 NA NB 1.6 1.8
9 x M10 x 1.25 32mm Exhaust Manifold Studs. 9 x M10 x 1.25 Flanged Tri-Lock Nuts (3/4 AF Head, Grade 8.8). Model: MX-5 NA / NB (Mk1 & Mk2). Ensures a secure seal between the exhaust manifold and cylinder head.