Dear manager, let me introduce ourself to you. we are a factory which produce fastener in China. we established in 1995,and located in linyi city shandong Prov. China. one of beautifull city of China. our main prroducts: all kinds of screws ,self drilling screws ,self tapping screws ,drywall screws. size: dia: 0.15---1.0mm length:15---200mm finshing:ziec plated ,color zinc standrad: DIN ISO GB FAQ we take care about our quality,and try to reduce our cost,,for supply to our customers good qualtiy and resonable price. we would like to make cooperate friends with worldwide fastener friends. regards waterfall(my english name)