Handan city Yongnian District Maide Fasteners Co. Ltd
Handan city Yongnian District Maide Fasteners Co. Ltd Galvanized Hex Bolts，Fully Threaded Hex Bolts，Galvanized Hex Nut
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This item is Carbon Steel Spring Washer Din 7980 White Or Blue Zinc Plated M10,the material is carbon steel,the size is M10,the standard is DIN 7980,the surface treatment is white zinc plated,the color is white.This product have other surface treatment:blue zinc plated,yellow zinc plated,black oxide,HDG,etc.
The spring washer has pretension, after compression, the rear recoil. In actual use, because of the characteristics of the thread, the nut is easy to rotate along the direction of the spiral, causing the nut to loosen. In order to solve this problem, the spring washer appeared. Spring washer with pretension, the nut after compression spring washer, in under the action of tension, in the triangle screw and bolt nut screw side, tightly to stick together, in under the action of friction, loose nut will no longer appear.
Spring washers are used for anti-loosening, flat washers have no anti-loosening function, flat washers just increase the contact area.
Specification:
| Item | Din127 B Carbon Steel Spring Washer M12 Hot Galvanizing And White Color |
| Size | M3-M42,or according to drawing or samples |
| Material | stainless steel,carbon steel, brass,etc |
| Surface treatment | HDG, black, galvanized, yellow zinc plated,etc |
| Standard | DIN,ISO,ASME/ANSI,BS |
| Trade Terms | FOB, CIF, CFR, EXW, and others. |
| Shipment Port | Tianjin or Qingdao |
| Delivery Time | The fastest 15-30days,According to the volume to determine the delivery time. |
| Grade | Class 4.8; 8.8;10.9;( ISO 898-1);12.9;Gr2,5,8 |
Classify:
1. Internal tooth washer, external tooth washer
There are a lot of sharp, flexible thumbs on the circumference that press against the bearing surface to stop the fastener from loosening. Internal rubber washers are used under the heads of smaller head size; external rubber washers are mostly used under the head of bolts and nuts. The toothed elastic washer is smaller in size than ordinary spring washers and has even force on the fastener to prevent loosening and reliable, but should not be used in the usual disassembly place.
2. Wave spring washer
Wave washers divided into WG type, WL type, WN type
3. Disc spring washer
Disc spring washer Belleville spring washer, also known as Belleville French. HDS Series is a very effective bearing load and elastic recovery. Bolt tension can withstand slack due to wear, creep, relaxation, thermal expansion, shrinkage, or seal compression of the consumable parts. The HDS series multiples the elasticity of the screw several times, effectively replacing conventional spring washers, but not suitable for locking washers and flat washers.
Drawings and size:
This is the size and drawing of the spring washer,size from 3 to 20,also have weight.The customer needs to provide the data in the form before ordering.
unit:mm
| Suitable thread | d | b | h | H | weight/Mpcs≈kg | ||||
| min | max | nominal | tolerance | nominal | tolerance | min | max | ||
| M3 | 3.1 | 3.4 | 1.3 | ±0.1 | 0.8 | ±0.1 | 1.6 | 1.9 | 0.11 |
| M3.5 | 3.6 | 3.9 | 1.3 | 0.8 | 1.6 | 1.9 | 0.12 | ||
| M4 | 4.1 | 4.4 | 1.5 | 0.9 | 1.8 | 2.1 | 0.18 | ||
| M5 | 5.1 | 5.4 | 1.8 | 1.2 | 2.4 | 2.8 | 0.36 | ||
| M6 | 6.1 | 6.5 | 2.5 | ±0.15 | 1.6 | 3.2 | 3.8 | 0.83 | |
| M7 | 7.1 | 2.5 | 1.6 | 3.2 | 3.8 | 0.93 | |||
| M8 | 8.1 | 8.5 | 3 | 2 | 4 | 4.7 | 1.6 | ||
| M10 | 10.2 | 10.7 | 3.5 | ±0.2 | 2.2 | ±0.15 | 4.4 | 5.2 | 2.53 |
| M12 | 12.2 | 12.7 | 4 | 2.5 | 5 | 5.9 | 3.82 | ||
| M14 | 14.2 | 14.7 | 4.5 | 3 | ±0.2 | 6 | 7.1 | 6.01 | |
| M16 | 16.2 | 17 | 5 | 3.5 | 7 | 8.3 | 8.91 | ||
| M18 | 18.2 | 19 | 5 | 4 | 8 | 9.4 | 15.2 | ||
| M20 | 20.2 | 21.2 | 6 | 4 | 8 | 9.4 | 16.5 | ||
