DIN 6319

Version in Steel


  • Type C: Spherical seat washer
  • Type D: Dished washer with d3 = d2
  • Type G: Dished washer with d4 > d 2 (enlarged outer diameter)

Type C / D

Case-hardening steel


All round depth 0.2 to 0.4 mm

Hardness (550+ 100) HV 10

Type G

Heat-treated steel, tempered

Hardness (350 + 80) HV 30

Version in Stainless Steel


Stainless steel AISI 303 NI

Type C / D / G

Not hardened

Stainless steel AISI 316 A4

Type C / D

Not hardened

Spherical washers and dished washers DIN 6319 are used for clamping on non-parallel surfaces.

Thanks to the material used, the spherical washers and dished washers are generally suited for aggressive environmental conditions.

The dished washers type G with enlarged outside diameter are mainly used on elongated holes.

When utilizing hexagon nuts with spherical seating DIN 6330 type B the spherical washer is redundant.

Version in Steel

  • Not hardened spherical washers
  • Not hardened dished washers

Version in Stainless Steel

  • Hardened spherical washers in stainless steel
  • Hardened dished washers in stainless steel
  • Stainless steel spherical washers, type G with d4 > d2

(enlarged outer diameter)

  • ISO-Fundamental Tolerances 
  • Stainless Steel Characteristics 


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