Material: Generally made of SS304 stainless steel wire. There are two types of stainless steel hexagonal screws in circulation on the market: head knurled and non knurled. Stainless steel hexagonal screws generally cannot be distinguished by the quality of the material from the surface, but can be judged by the production process of the screw (industry experience, for reference only): Generally, screws with straight lines and knurling technology on the head of stainless steel hexagonal screws can be considered as authentic SS304 screws.
Reference standard: DIN912
Scope of application: environmental protection equipment, medical equipment, communication equipment, power facilities, electronic products, food machinery, petrochemical industry, ship assembly, pump valve pipeline, building curtain wall, outdoor occasions, etc.
