BN 785 - ~NFE 25-512
Material:Spring steel
\nSurface:zinc plated blue
\nHardness:420-510 HV
\n"}Material:Spring steel
Surface:zinc plated blue
Hardness:420-510 HV
Material:Spring steel
\nSurface:zinc plated blue
\nHardness:420-510 HV
\n"}Material:Spring steel
Surface:zinc plated blue
Hardness:420-510 HV
Serrated lock washers large type, internal serrations Spring steel - zinc plated blue
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