Dual Deadbolt Lock
A locking mecanism with one deadbolt locking into the side door frame and the other into the upper door frame.
http://www.angelfire.com/ma2/DualDeadboltLock/index.html

Secure Industries Inc
Distributor of locking systems and door furniture with an online catalog.
http://www.secureindustry.com/

Ozone Overseas Ltd.
Welcome to Ozone Overseas Ltd.
http://www.ozone-india.com

Electronic Locking Systems
Electronic security systems including electro magnetic locks, key pad entry, proximity readers, solenoid bolts and electric release systems or strikes for use in access control and electronic locking applications.
http://www.electriclock.net/

Comated Edilizia S.p.A.
Italian manufacturer of double-locking wedge clamps, self-locking spring clamps, anchor systems, couplers and other accessories for the construction market.
http://www.comated.com

Opera Srl
Produzione e vendita di serrature motorizzate, elettromagneti e fermi elettromagnetici. Schede tecniche, glossario dei termini tecnici, area riservata per i clienti.
http://www.opera-italy.com

Arrow Architectural Hardware
Arrowlock, Products designed for security professionals
http://www.arrowlock.com/

ASSA ABLOY Hospitality
Security solutions for the hospitality industry. Hotel locking systems, electronic high security locks, keyless and card door locks as well as in-room safes and related security products.
http://www.assaabloyhospitality.com

Truth Hardware
Operator,Hinge,Lock,Winder,Crank,Sash Lock,Window Operator,Window Hinge,Window Lock,Checkrail Lock,Check Rail Lock,Snubber,Truth Hardware,Truth,Anderberg,Reflectolite,Allen-Stevens,Operator Handle,Window Handle,Window Crank,Patio Door Roller,Rollers,Handlesets,Mortise Locks,Multi-Point Locks,Motorized operators,Skylight poles,Skylight operators,Sliding door hardware,Sliding window hardware,Hinged window hardware,Swinging door hardware,Security Lock,Fusion,EntryGard,Maxim,E-Gard,TrimLine,Locking Handles,Sentry 2000,Sentry II,Jamb Jacks,Push Bars,Sash lifts,Ellipse Operator,Sliding Patio Door Hardware,Patio Door Handle,Patio Door Lock
http://www.truth.com/

Metro Overhead Door, Inc
Garage Door parts and transmitters available for sale. Free shipping over $30.00.
http://www.metrooverheaddoor.com