GM Service Manual Online
For 1990-2009 cars only

All door hardware production attaching screws contain an epoxy thread-locking compound in order to maintain the minimum original torque setting. Service attaching screws may not contain a thread-locking compound. Apply GM P/N 12345493 (or equivalent) to the hardware attachment as a liquid in order to treat the threads of fasteners for the following reasons:

    • In order to prevent loosening of service screws
    • In order to renew the thread-locking characteristics of production screws

After you install and tighten the screws, the adhesive cures. The curing process is necessary for the following reasons:

    • In order to bond the attachment to the screw
    • In order to prevent loosening of the screw
    • In order to prevent backing out of the screw

The adhesive bond does not prevent future attachment removal if required. You may use LOCTITEâ„¢ 272 (or equivalent) on any thread fastener.