slbrillreMaterialslbrillre hex nut is made of high quality carbon steel and nylon, which is strong, wear-resistant and durable. Self-locking nut easy to use. StabilityThe hex nut has a thread inside that can fix the nut to prevent loosening, and the fixing effect is good. FinishThe surface is black electroplated, rust-proof and beautiful. The machine tool is precisely manufactured by calculator control, with standard dimensions, clear and clean threads. Widely usedOur self-locking nuts are very strong, suitable for machine building, automobiles, motorcycles, model making, fences, furniture, etc. Hexagon nut made of high-quality carbon steel and nylon. The internal thread is self-locking, easy to use, and the fastening effect is better. Hexagon nuts can be used in conjunction with bolts and screws to connect and fix parts. It is widely used in mechanical engineering, automobiles, motorcycles, model making, fences, furniture, etc. The safety nut, also called a stop nut or self-locking nut, is provided with a polyamide plastic clamping element in the internal thread. Thanks to plastic deformation of the plastic part that occurs when tightening the nut, the automatic loosening of the screw connection is prevented and makes other elements of the machine. or the work of the screw rod is not necessary. Important: the locking nuts are disposable. If such a connection is resolved, the stop nut becomes unusable and must be replaced. Safety against self-loosening is no longer possible. Self-locking nuts with plastic ring are not suitable for high operating temperatures. Contents: 50 M5 hex nuts.