Bolts: 35CrMo 20613-2009; Nuts: 6175
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As indicated in the title, we need the standard numbers for bolts according to chemical industry standards: bolt 35CrMo 20613-2009, nut 6175； At present, the quality of suppliers varies greatly; I would appreciate it if those with more experience could recommend some reputable bolt manufacturing companies or brands
Recommended bolt manufacturers or brands: Dongguan Yangjiang Hardware, Shanghai Baosteel Fasteners, Jiangsu Xinyu Fasteners, etc. These enterprises are large in scale, offer stable product quality, and can meet the requirements of chemical industry standards. .
Baoji Juwei Titanium Industry: 13991758307 – you can contact them