This page is available at https://www.rwfa.com.au/Products/Stainless-Steel-Flange-Bolts/METRIC-304-STAINLESS-STEEL-SERRATED-FLANGE-NUTS/Metric-Coarse-Pitch-Flanged-Serrated-Nuts.html
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This page is available at https://www.rwfa.com.au/Products/Stainless-Steel-Flange-Bolts/METRIC-304-STAINLESS-STEEL-SERRATED-FLANGE-NUTS/Metric-Coarse-Pitch-Flanged-Serrated-Nuts.html