iMac 21.5″ A1311 – Hinge Clutch Mechanism $10.00 A1311 – Late 2009 – Mid 2010 – Mid 2011 iMac 21.5" A1311 - Hinge Clutch Mechanism quantity Add to cart Add to Quote Continue Shopping Category: Case & Internal Parts (Intel) Tags: 2009, 2010, 2011, 21.5", a1311, clutch, hinge, mechanism Description Hinge or Mechanism for the iMac A1311. Late 2009 – Mid 2010 – Mid 2011 – Mechanism – 922-9133