DIN 985 Refined Nylon Lock Nut
Grade: 4.8, 8.8, 10.9, 12.9, Material: Q235, 35K, 45K, 40Cr, 35Crmo, 42Crmo, Surface Treatment: Blackened, Electrogalvanized, Dacromet, Hot-dip Galvanized, Galvanized, etc!
| Product Name | Hex Locknuts |
| Size | M3-M32 |
| Material | Stainless Steel, Carbon Steel, Alloy Steel,etc |
|
Grade |
A2-70, A2-80, A4-70, A4-80 |
| 4.8, 8.8, 10.9, 12.9.etc | |
| Standard | GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS .etc |
| Finish | Natural, Black, White-plated zinc, Color zinc, Nickel, Dacromet, Polished, Zinc-nickel alloy, Hot-dip galvanized, etc. |
| Delivery Time | 5-25 Days |
| Package | Cartons + Pallet |
Nylon anti loosening nut is a new type of high anti vibration and anti loosening fastening component that can be applied to various mechanical and electrical products at temperatures ranging from -50 ℃ to 100 ℃. Its anti vibration and anti loosening performance is much higher than other anti loosening devices, and its vibration life is several times or even dozens of times longer. It can effectively prevent accidents caused by loose fasteners. Currently, its demand has increased dramatically in aerospace, aviation, tanks, mining machinery, automotive transportation machinery, agricultural machinery, textile machinery, electrical products, and various types of machinery.
The working principle of nylon anti loosening nuts mainly relies on frictional self-locking. By embedding nylon rings, necking closures, or adding metal anti loosening devices inside the nuts, the elastic deformation of plastic or metal rings is utilized to generate frictional force between the nuts and threads, thereby preventing the nuts from loosening. When the nut rotates, the plastic or metal ring is compressed, thereby increasing friction and making the nut more secure.
This type of nut has the following advantages:
Superior anti vibration performance: When tightened, the thread line of the bolt's tooth top is tightly inserted into the 30 ° wedge-shaped slope of the nut and clamped, generating a normal force at a 60 ° angle with the bolt axis, thus having great anti loosening and anti vibration capabilities.
Strong wear and shear resistance: The 30 ° inclined surface at the bottom of the nut thread can evenly distribute the locking force of the nut on all threads, which can effectively solve the problems of thread wear and shear deformation.
Good reusability: After repeated tightening and dismantling, its locking force still does not decrease, and the original locking effect can be maintained.
Common nylon lock nuts have different standards and specifications, such as DIN985, GB889, etc. The materials include stainless steel (such as 304, 316, 201 stainless steel, etc.), carbon steel, etc. When choosing nylon lock nuts, it is necessary to consider the requirements of the usage scenario, the size specifications of the nut, the material, and the price to ensure that they meet the needs of practical applications.
Usage:
Nylon lock nuts are used as follows123:
Insert the nylon lock nut into the thread and turn it tightly by hand, taking care not to use force.
When using power tools for tightening, the torque should be appropriately adjusted to avoid the danger caused by over-tightening.
Attention should be paid to maintaining the vertical when tightening, so as to avoid unnecessary deviation and failure of the fastening force.
Tighten the lock nut onto the bolt until it fits snugly against the material it is holding in.
Then, tighten the second nut onto the lock nut so that the teeth of the lock nut bite the thread of the bolt, locking it in place.
Install the washers at the threaded ends of the correctly sized stainless steel bolts or stud bolts first.
Replace the nut or bolt that locks the bolt by hand until you encounter resistance so that the nylon is inserted.
Tighten the lock nut firmly and, by using a wrench, replace the original nut and rotate clockwise.
If the bolt head is tight, use the same second wrench to tighten it while tightening the nut.
