Product Description Material: Stainless Steel Nylon Quantity: 170pcs Package Contents: 170 * Stainless Steel Locking Nut 1.【High-quality materials】 : Constructed of 304 stainless steel and nylon, nylon inserts are threaded to resist sagging, one of the highest performing forms of corrosion resistant metals that lasts longer than other nuts on the market. 2.【Sturdy and durable】 : Robust polymer nuts are extremely torsion-proof. Locknuts will not weaken or loosen under vibration or torque, reducing glow resistance. Guaranteed intact and firm to the touch, making it virtually indestructible. 3.【nut sizes】 : M3 M4 M5 M6 M6 M10 M12 to meet different needs Nylon Nuts are stored in a storage box, which is easy for you to find the series and avoid losing when you need. 4.【Wide range of applications】 : Anti-lock nylon nut is a new type of anti-vibration anti-elastic parts used in wardrobes, miners, mowers, motors, textile machinery, etc. 5.【Convenient storage】 : The nuts are stored in a