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M2 M2.5 M3 M3.5 M4 M5 M6 M8 M10 M12 304 Stainless Steel Black Carbon Steel Zinc Nylon Insert Lock Nut Self-locking Nylock Nuts
M2 M2.5 M3 M3.5 M4 M5 M6 M8 M10 M12 304 Stainless Steel Black Carbon Steel Zinc Nylon Insert Lock Nut Self-locking Nylock Nuts
https://www.bizrate.co.uk/homehardware/m2-m2-5-m3-m3-5-m4-oid35971178547.html