M4 M5 M6 M8 M10 M12 M16 M20 NYLOC NYLON INSERT LOCKING NUTS A2 STAINLESS STEEL. 8.8 High Tensile Zinc Plated. A2 STAINLESS STEEL NYLOC NUTS. PLEASE SELECT FROM DROP DOWN MENU. Nylon insert nuts are an economical means of combatting loosening from vibration. A nylon neck situated at the top of the nut, is slightly narrower than the thread; as the nut is tightened, the nylon grips the corresponding thread. A2 stainless steel material, offering superb resistance to corrosion. M4 X 0.7 PITCH.
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