Stainless Steel a2-70 ss304 ss316 full thread hex head bolt
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Stainless Steel a2-70 ss304 ss316 full thread hex head bolt

Material: Stainless steel

Finish: Plain

Standard:DIN933

Certification: ISO9001

MOQ:1000PCS

Samples: Free

Place of Origin: Zhejiang China

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Product Details

Product Description
Dimensions
Material and Surface Treatment
Technical Parameters

Basic Information

  • Standard: DIN933, which has been withdrawn and superseded by ISO4017, but off-the-shelf parts are generally still manufactured to the older specification.
  • Thread: Metric thread, with thread diameter ranging from M1.6 to M52.

 

SS2205 Chemical Composition(%)
Grade C≤ Mn≤ P≤ S≤ Si≤ Ni Cr Mo N
  0.030 2.0 0.03 0.02 1.0 4.5-6.5 21-23 2.5-3.5 0.08-0.2

 

 

S32750 Chemical Composition(%)
Grade C≤ Mn≤ Si≤ S≤ P≤ Cr Ni Mo Cu≤ N
  0.03 1.2 0.8 0.02 0.035 24.0-26.0 6.0-8.0 3.0-5.0 0.5 0.24-0.32

DIN933
Screw Thread  d Pitch   P k s
max min max min
M5 0.8 3.74 3.26 8 7.64
M6 1 4.42 3.76 10 9.64
M7 1 5.04 4.56 11 10.57
M8 1.25 5.54 5.06 13 12.57
M10 1.5 6.69 6.11 17 16.57
M12 1.75 7.79 7.21 19 18.48
M14 2 9.09 8.51 22 21.16
M16 2 10.29 7.91 24 23.16
M18 2.5 11.85 11.15 27 26.15
M20 2.5 12.85 12.15 30 29.16
M22 2.5 14.35 13.65 32 31
M24 3 15.35 14.65 36 35
M27 3 16.65 17.35 41 40
M30 3.5 19.12 18.28 46 45
M33 3.5 21.42 20.58 50 49
M36 4 22.92 22.08 55 53.8

 

 

 

 

 

 

 

  • Head Dimensions: DIN933 specifies the head dimensions of hex head bolts. For example, for an M30 DIN933 hex bolt, the head width across flat is 45mm, and the head height is 12.72mm.
  • Length: Available in a variety of lengths to meet different assembly requirements.
  • Materials: Made of carbon steel, alloy steel, stainless steel, non-ferrous metals, etc. Stainless steel is often used for its corrosion resistance and durability.
  • Surface Treatment: Common surface treatments include hot-dip galvanizing, zinc plating, black oxide, etc. Hot-dip galvanizing provides excellent corrosion resistance and is suitable for use in harsh environments.
  • Grade of Fasteners: For carbon steel and alloy steel bolts, different strength grades are available, such as grade 8.8 and grade 10.9. Grade 8.8 bolts have a minimum tensile strength of 800 MPa and a minimum yield strength of 640 MPa. Grade 10.9 bolts have a minimum tensile strength of 1000 MPa and a minimum yield strength of 900 MPa.
  • Thread Tolerance: The thread tolerance of DIN933 hex bolts is usually 6g, which ensures good interchangeability and reliability in assembly.