4 Thin Wall M8 Nuts 11mm ATF Spanner Inlet Exhaust Manifold Stainless VW Porsche

11mm Across The Flats (ATF). Thinner Than Standard M8 Nuts Which Are 13mm ATF. Thin Wall 11mm Across The Flats (ATF) Design - Fits 11mm Sockets & Spanners. Ideal For Use On Performance Inlet And Exhaust Manifolds Where Tooling Access Is Tight For 13mm ATF Tools.