New GM oil pan bolt.  This is the short bolt that holds the plastic flywheel cover flaps to the oil pan. For factory oil pans only (see below).  Bolts are sold indidually  Fits the following:

97-10 LS1/LS2/LS3/LS6 Corvette
98-02 LS1 Camaro
98-02 LS1 Firebird/Trans Am
04-06 LS1/LS2 GTO
04-07 LS6/LS2 CTS-V
99-10 LS based trucks