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Slotted Cylindrical Head Screw

Slotted Cylindrical Head Screw

Slotted cylindrical head screw Product Name: Slotted cylindrical head screw Standard : GB65/DIN84 Nut Material: Stainless steel 304 Surface treatment: Unprocessed Drawing diagram (Unit:mm) Chemical composition Note: 1. If the nickel content is less than 8%, the minimum content of manganese must...

Products Specifications:

Slotted cylindrical head screw

Slotted cylindrical head screw.jpg

Product Name:  Slotted cylindrical head screw

StandardGB65/DIN84

Nut Material: Stainless steel 304

Surface treatment: Unprocessed

   

Drawing diagram  (Unit:mm)

Slotted cylindrical head screw-dim.jpg

SpecM2
M2.5M3M4M5M6M8
Pitch0.4
0.450.50.70.811.25
dkmin
3.8455.578.51013
max3.624.325.326.788.289.7812.73
k max1.261.661.862.463.13.64.7

Chemical composition                                   

Chemical composition
Spec
CSiMnPSCrMoNiCuFeature
304-A20.1120.050.00315-20
8-194Medium work hardening rate, suitable for general cold working and drawing, good cold working performance, commonly used for hexagon socket screws, nuts and washers 
306-A20.08120.0450.00316-18.52-310-151

Molybdenum added corrosion resistance is stronger than 304, especially suitable for seawater and chemical media, more corrosion resistance and pitting resistance.










Note:

1.    If the nickel content is less than 8%, the minimum content of manganese must be 5%.

2.    When the nickel content is more than 8%, the minimum content of copper is not limited.

3.    If the chromium content is less than 17%, the minimum content of nickel is 12%.

4.    For austenitic stainless steels with a maximum carbon content of 0.03%, the nitrogen content can reach up  

      to 0.22

5.  For larger diameter products, in order to achieve the specified mechanical properties, there may be a higher 

    carbon content in the manufacturer's instructions, but not more than 0.12% for martensitic steel
Slotted cylindrical head screw-2.jpg


















Common problems                                         

Question 1

 1.  Why is stainless steel also magnetic?

304 stainless steel is an austenitic stainless steel. Austenite is partially or slightly converted to martensitic during cold working, and martensitic is magnetic, so 304 stainless steel is non-magnetic or micro-magnetic

Question 2

2.  How to correctly identify 304 stainless steel products

  Support 304 stainless steel special detection syrup detection, If it is not discolored, it is 

     304 stainless steel

  Support for chemical composition analysis and spectral analysis

       Support salt spray test to simulate the actual use environment.
Question 3

3. What kinds of stainless steel are commonly used?

  201 stainless steel, suitable for use in a dry environment, it is easy to rust with water.

  304 stainless steel, suitable for the outdoor or humid environment, resistant to corrosion

      and acid.

      ③ 316 stainless steel, added molybdenum, more corrosion resistance and pitting resistance

           especially suitable for seawater and chemical media














Slotted cylindrical head screw-3.jpg








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