The Von Duprin 900901 Mechanism End Cap Screw Package is a service replacement component for compatible Von Duprin exit devices shipped before January 2002. It is used to replace the screw hardware compatible with the mechanism end cap. 

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Manufacturer: Von Duprin
Part Number: 900901
Product Name: Mechanism End Cap Screw Package
Primary Function: Replacement screw package for mechanism end cap hardware.
Application: Commercial door hardware and exit device maintenance.
OEM Part: Yes
Warranty: 3-year limited (electronic), Limited lifetime (mechanical)