VS191 FIXIN Screw Case diam. 1.3 - 1.7 - 1.5C by Intrauma SpA. This FIXIN Screw case is designed to store 1.3mm FIXIN locking Screws; 1.7mm FIXIN locking Screws; 1.5mm FIXIN Cortical Screws. The Rack is completely autocalavable and comes with a lid to prevent the screws from falling.