DIN933 DIN931 A2 A4 types hex cap set screw hex head stainless steel screw SS304 SS316 hexagonal bolt nut

Dongguan Litian Hardware Machinery & Electrical Co.,Ltd. Established in 2007 covers an area of 30000sq.m,is a professsional manufacturer of hardware fasteners. The products are widely used in communications, electrical appliances ,automobiles,ships,aviation ,toys,lighting and other related industries.Our company attaches importance to quality and strives for survival by quality,Our quality concept is: defective products are not to be accepted ,produced and released.Thread pulg gauge (stop gauge) and inner hollow needle gauge are our basic requirements and no defect is our goal,which has been unanimously praised in the fastenner industry .Our company has successfully passed ISO9001:2000 quality management system certification. Spectrometer ,carbon and sulfur analyzer ,salt spray tester,hardness tester ,etc,the company 's main production equipment ,full inspection equipment ,packaging equipment highly improved production efficiency and technique due to fully automationThe company adheres to the enterprise spirit of "unity,struggle,exploiting and enterprising",and strives to build the brand of "Li Tian Nut"with the business philosophy of innovation proprietary,standard internationalization and market globazation..