Cylinders & Accessories 4000 Series MS® Deadlock Strikes 4000 Series MS® Deadlock Strikes add aesthetics and finis… 4015 Threshold Bolt Security for pairs of doors with single key turn is possi… 4016 Header Bolt Security for pairs of doors with single key turn is possi… 4085 Header Bolt4085 Header Bolt provides top-of-door third locking point… 4089 Exit Indicator4089 Exit Indicator provides exit door notification for v… 4800 Series Strikes 4800 Series Strikes add aesthetics and finish to strike c… 4901, 4902 Deadlatch Strikes 4901, 4902 Deadlatch Strikes add aesthetics and finish to… 4024, 4025, 4026 Cylinder Pulls4024, 4025, 4026 Cylinder Pulls are designed to operate A… 4036 Mortise Cylinder & 4066 ThumbturnThe 4036 Mortise Cylinder provides five-pin security with… MS4043 Cylinder GuardThe MS4043 Cylinder Guard is a hardened-steel ring to pro… B1921, B1923 Reinforcing PivotsB1921, B1923 Reinforcing Pivots provide an economical way… Lock Mounting Methods Lock mounting methods for narrow stile aluminum doors – t…