• National Bolt & Nut's line of premium metric lock washers are designed to help prevent a nut from loosening by placing tension against the nut after tightening. All of our metric lock washers meet DIN 127 dimensional specifications and are constructed from hardened alloy steel.
  • Other materials and finishes available. For further information, call or send an information request.
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N/A Custom N/A Custom
N/A M5 N/A Plain
N/A M6 N/A Plain
N/A M8 N/A Plain
N/A M10 N/A Plain
N/A M12 N/A Plain
N/A M16 N/A Plain
N/A M20 N/A Plain
N/A M24 N/A Plain
N/A M30 N/A Plain
N/A M36 N/A Plain
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