Hongkong DDQ Applied Materials Co., Limited are a professional supplier of Titanium and other advanced metal materials and spare parts.The advanced materials of fasteners mainly includes Titanium(whole series), Zirconium, Molybdenum , Tantalum, Monel (400, 500), Inconel(600, 601, 602CA, 625, 718, 713C), Nimonic(263, 80A, 90) , etc. (1) Washer/screw : We can supplies all types of metallic gaskets and Screws according to various standards for Rectors, Exchangers, Towers, Pressure Vessels, Vavles, Pipe/Tube lines, Pumps, Compressors, Boilers and other Equipment. (2) Industrial Screws(Products system ) Pan Head Slotted Screws, Hexagon Head Screws, Cheese Head Slotted Screws, Countersunk Head Slotted Screws, Countersunk Raised Head Slotted Screws, Pan Phillipse Head Screws, Countersunk Phillipse Raised Head Screws... (3) Available Washers / screw materials: Titanium( Gr2, Gr5), Monel, Inconel, Alloy 20, Nickel, Hastelloy C-276 , Molybdenum, Tantalum , Nimonic and Zirconium702 , etc. Titanium screws, inclding titanium Gr.2 and Gr.5. The screw grade includes DIN933, DIN931, DIN912, DIN7991, DIN84, DIN934, DIN6912, DIN125, DIN913, DIN916, DIN976, DIN975, etc. www(dot)ddq-ti(dot)com info(At)ddq-ti(dot)com