EMPI’s Chromoly Case Studs provide superior and even clamping force required by today’s hi-performance VW engines. The Chromoly Studs are made from high-grade chromoly and are precision machined to resist stretch and fatigue. These EMPI Chromoly Case Studs are stock length for dual port heads and measure 10mm. The kit is complete with O.E. style hardened washers and hex nuts.