M8 8mm 1.25mm 13mm. M4 4mm 0.7mm 7mm. M20 20mm 2.5mm 30mm. M6 6mm 1.0mm 10mm. M5 5mm 0.8mm 8mm. M3 3mm 0.5mm 5.5mm. Nylon Lock Nuts – A2 Marine Stainless Steel – DIN 985. M18 18mm 2.5mm 27mm.
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