DIN931/DIN933 Hex Bolt And Nut Lengthened Half Tooth Bolt Stainless Steel Half Thread Screw Hexagon Head Cap Screw

Stainless steel screws are widely used in machinery, petrochemical, telecommunications, chemical, construction, power, textile, sports equipment, paper, sewage, shipbuilding, automotive and other industries. With the improvement of domestic economic living standards, the application range of stainless steel screws will be more widely.Mainly used in: environmental protection equipment, medical equipment, communication equipment, power facilities, electronic products, instrumentation, food machinery, petrochemical, ship assembly, pump and valve pipelines, building curtain walls, outdoor venues, sports facilities, outdoor decoration, etc.
Mainly used in: environmental protection equipment, medical equipment, communication equipment, power facilities, electronic products, instrumentation, food machinery, petrochemical, ship assembly, pump and valve pipelines, building curtain walls, outdoor venues, sports facilities, outdoor decoration, etc
Austenitic stainless steel: commonly used models are 302, 303, 304, 305 four models, the so-called "18-8" austenitic stainless steel four models. Both corrosion resistance and mechanical properties are similar. The starting point for the selection is the production process of stainless steel screws, which in turn depends on the size and shape of the stainless steel screws, and also on the quantity produced.
Type 302 is used for machined screws and self-tapping bolts.
Model 303 In order to improve the cutting performance, a small amount of sulfur is added to the Type 303 stainless steel for the processing of nuts with bar stock.
Type 304 is suitable for machining stainless steel screws with a hot boring process, such as longer gauge bolts and larger diameter bolts, which may exceed the range of the cold heading process.
Type 305 is suitable for machining stainless steel screws with cold heading, such as cold formed nuts and hexagon bolts.
Types 309 and 310, which have higher Cr content and Ni content than 18-8 stainless steel, are suitable for stainless steel screws working at high temperatures.
Types 316 and 317, both of which contain the alloying element Mo, are therefore higher in strength and corrosion resistance than 18-8 stainless steel.