KM0 NYLOC LOCKNUT M10x0.75 (GUK). Guk Locknuts / KM Nyloc Locknuts. KM1 NYLOC LOCKNUT M12x1 (GUK). KM2 NYLOC LOCKNUT M15x1 (GUK). KM3 NYLOC LOCKNUT M17x1 (GUK). KM4 NYLOC LOCKNUT M20x1 (GUK). KM5 NYLOC LOCKNUT M25x1.5 (GUK).
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