• Special Screws
  • Screws with Special Surface Treatment


Hex Socket Head Cap Screws - Super Black

  • Vacuum
  • Chemical-proof
  • Antireflection
  • Decoration

Dimension Drawing

SNSS-BKHex Socket Head Cap Screws - Super Black寸法図

Unit : mm

Part Number M (Coarse)
Nominal of Thread
Pitch L D1 L1 B Qty per Pack Mass
SNSS-M5-16-BK M5 0.8 16 8.5 5 4 5 3.5 17.49 CAD Cart

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Related Services


Main Body SUSXM7
(Equivalent to SUS304)
Stainless Steel Black
Strength Class A2-70


Antireflection. Optical instruments, FPD production equipment,
semiconductor devices, vacuum applications,
and general industrial machines


  • The stainless black surface treatment develops a passive membrane on the stainless steel surface up to 200 times of normal to produce a deep black finish.
  • Excellent corrosion resistance. 8 times more resistant compared to SUS316L and 32 times to SUS304, respectively.
  • The membrane contains no impurities and has extremely low outgas even in vacuum environments.
  • Spectral reflectance is 1.5% or less. For optical instruments and other applications that require antireflection.⇒The Features of Screws with Special Surface Treatment
  • Deep black color decorates surfaces of equipment and devices.

Corrosion-resistant Comparison

Ferric Chloride Corrosion Testing (JIS G 0578)

SNSS-BKHex Socket Head Cap Screws - Super Black

Product List

Click here to see SNSS-M5-BK

Click here to see SNSS-BK