HERCULES LOCK MANUFACTURING COMANY was founded in 1988, specialized in developing and manufacturing of hardware products.the main products are included 1.security prodocts(cylindrical locks,tubular locks,rim locks,jimmy proof dead bolts,wight latches,grip entrance handles,mortise locks,padlocks. 2.stainess steel hinges,brass hinges,steel hinges,brass bolts,door accessories 3.glass shower rooms,ceramic basinsfaucets,sanitary hardware(tower bar,glass holder,soap holder...) 4.industrial tape cster & rollercaster. Annual sales of door lock reaches eight milions pieces, which meet international standard and U.S.A ANSI specification for Grade TWO & Grade Three. Regular Keyways:Kwikset,Schalge,Yale,Weiser & C4 as well as multi- lock,cross key are available. welcome the importers and buyers come to visit or negotiate business with us. More details of our products,send us email or fax