Manufacturers
AF
A-1 Security Corp HE HES NO Norton
AU Abus USA LLC HD Hinge Doctor OL Olympus Lock
AR Adams Rite HP HPC, Inc. OX Optex, Inc.
AV Advanced Diagnostics IL Ilco (Kaba Ilco) PC Panef Corporation
AL Alarm Lock IE International Electronics PQ PDQ
AM American Lock Co. IV Ives PH Precision Hardware Inc.
AS Amsec-Major-Star JT Jet Hardware PM Programmed Marketing
AW Arrow Lock JM JMA PL Pro-Lok
AI Assa, Inc KA Kaba Access RE Reese Weatherstrip
AP Auto Security Products KM Kaba Mas RC Rutherford Controls
BP Bauer Products KE Keedex RY Rytan
BO Bommer Industries KR Keri Systems PX Sandstrom Products
CH Chicago Lock (CompX) KI Key Systems SA Sargent
CL C.L.S., Inc. KP KSP SG Sargent & Greenleaf
CO Combi-Cam KS Kwikset SC Schlage
CA Command Access LA Lab Security IR Schlage Electronics
CE eLock (CompX) LC LCN Closers SE Securitron
CR Corbin Cabinet Lock LG Latch-Gard Co., Inc. SH Select Hinges
RW Corbin/Russwin IT International Door Closers SR SRS Products
DX Detex Corporation LS Lock-Saver ST Strattec
DJ Don-Jo Manufacturing, Inc. LL Lucky Line SP Supra Products
DS Door Scope MM Major Manufacturing TM Timberline (CompX)
DR Dor-O-Matic MK Markar Products, Inc. TF Tri-Flow
DY Dynatool (ADA EZ) ML Master Lock Company UC Uscan
ES ESP Corporation MC McKinney VD Von Duprin
FA Falcon MP Mega Pro Tools WE Weiser Lock
FG Folger Adam Company MN Monarch YA Yale
FL Fort Lock (CompX) MS MS Sedco YB Young Brothers
GE GE/Supra/Kidde Safety NL National (CompX)    
GM GMS NI Nicholson    
HA HATA