LSA & LS9 Supercharger to Cylinder Head Bolt Kit 50mm length <ul> <li>Package includes; 10 flange bolts</li> <li>Compatible with all GM LSA and LS9 superchargers</li> <li>All ICT Billet metric flange bolts are custom made for us, right here in the USA!! Grade 10.9, JIS head</li> </ul>