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      Product features
      
                    
      1. Material: 38CrMoAlA
      Nitriding treatment: Surface hardness: HV≥900
      Nitriding depth: 0.5-0.8mm

      2, material: special stainless steel,
      Quenched, hard HRC55-58, suitable for all kinds of transparent and corrosive materials, improve the life of screw.

      3, material: surface tungsten carbide ultra sound overall spray welding, improve the wear resistance of screw.


      
                
      
                
      
            
      

            
      
                
      
                    
      Screw head - Screw head
      
                
      
                
                
      
                
      
                    
      
                        
      1. Material: 38CrMoAlA
      Nitriding treatment: Surface hardness: HV≥900
      Nitriding depth: 0.5-0.8mm

      2, material: special stainless steel,
      Quenched, hard HRC55-58, suitable for all kinds of transparent and corrosive materials, improve the life of screw.

      3, material: surface tungsten carbide ultra sound overall spray welding, improve the wear resistance of screw.

      
                    
      
                    
                
      
            
      

            
      
                
      Series of other products