... 2.eco-friendly 3.ISO9001:2008 & 2000; 4.DIN JIS screw nuts Specifications:1) Suitable for various automotive, electronic, telecommunications, mechanical ... into a professional manufacturer, supplying Stainless Steel Axis centers, High-precise Stainless Steel products, Pins made of Iron, Copper and Aluminum ... , with an output of over 1 million pieces per month. screw nuts