Flanged Hex Nuts – Serrated & Non-Serrated – A2 Stainless Steel – DIN 6923. No washers needed – built-in flanged base. M8 17.9mm 8mm 1.25mm 13mm. M12 26mm 12mm 1.75mm 18mm. M4 9.8mm 4.5mm 0.70mm 7mm. M10 21.8mm 10mm 1.50mm 15mm.
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