Torx screws are not standard on the SL1/SK1 trim but are available as an option.
Specify the L283-121 Torx screw pack. This pack includes torx screws for the armor and strike.
(2) #10-24 X 1.0 TORX OVAL HEAD MACHINE SCREW, FINISHED
(2) SCREW, 8-32 X 3/4 MS PIN TORX
(1) SCREW, 8-32 X 1 MS PIN TORX
(2) SCREW, 8-32 X 7/8 MS PIN TORX
The Schlage SL1 ligature resistant lever is designed to break-away between 100 and 200 inch-pounds. The lever will rotate at this point but not allow access.
Von Duprin 98/99 NL drive screw is located in back of the 98/99 center case assembly.
NL drive screw should be left in with trim lock slide plate in up position in the 98/99 exit device with E99...