Hot Dip DIN7980 Flat Spring Washers SGS Helical Lock Washer
DIN7980 Hot Dip Spring Steel Lock Washer Regular Helical Spring Lock Washers
| Material | Carbon Steel, Stainless Steel |
| Surface | Black, Zinc Yellow, Zinc White, Hot Dip Galvanizing, Dacromet |
| Common Standards | DIN 127B/DIN7980/GB93-76/GB93-87/GB7244-87/ASME B18.21.1999/BS1802/JIS1251 |
| Specification | M3~M48 |
| 8#--2 | |
| Function | Structural Steel; Metal Buliding; Tower&Pole; Wind Energy; Mechanical Machine etc. |
| Diameter | M3 - M48 as customer required. |
| Packing | As Customer required. |
| Packaging Details | Small box, then in Carton, on Pallet; or Bulk Packing in Carton, then on the Pallet. Always in 20 fts container. Also, we can do per customer required. |
| Sample lead time | WITHIN A WEEK. |
| Delivery Time | Within 7 days to 45 days depend on order quantity (after order confirmation & deposit paid). |
| Others | Each standard has fixed dimensions and mechanical performance index like hardness, toughness, elasticity |
| MOQ: 500 Kilos for single specification |
Products Description
the spring washer will produce a continuous elastic force to the nut after being flattened, so that the screw connection pair will maintain a continuous friction force! That is to say, spring washers prevent the loosening of the fastening bolt effectively caused by the vibration of the running equipment.
Main Process:
1. All blank metal wire is subject to Pickling and Phosphetization to remove some rust on surface
2. After being cleaned, the metal wire will be stretched and deformed to square to get the accurate width and thickness
3. Then the square wire will be coiled to a certain inside diameter and be cut automatically
4. Gray washers will be heat treated
5. Surface Treatment
Package details:
1) Sample order, 20/25kg per carton with our logo or neutral package;
2) For Large orders, we can custom packaging;
3) Normal Packing: 1000/500/250pcs per small box. then into cartons and pallet;
4) According to customers' requirements.
1.How do you let me trust you?
We are a Golden supplier in Alibaba who do business for more than 5 years. You can make an order by Alibaba to us directly.
2.How about your price?
High-quality products with a reasonable price suitable for your market.
3.How do you control your quality?
We request a QC inspection for each batch of goods. And we can provide you inspection report and mill certificate if you want..
4.Could you provide free samples?
For new customers, We can provide free samples for standard fasteners. But the clients will pay the express charges. For regular customers, We will send you free samples and pay express charges by ourselves.
5.How about your delivery time?
Generally speaking, All the goods have stock with little quantity, we can delivery them with one week. If the quantity is 1-2container, we can give you with 30-45days.
6.What is your packing?
Our packing is 20-25kg for one carton,36 or 48pcs cartons for one pallet. One pallet is about 900-960kg, We also can make the customer's logo on the cartons. Or we customized cartons according to customers' requirement, If you need small box packing, we can do according to your requirement.
7.What is your payment term?
We can accept T/T,LC for general order. For new customer, we request 20%-50% T/T in advance, and balance payment should against B/L copy. For regular customer, we can provide delay payment after B/L date about 30-90 days.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.