Spring washers can prevent loosening and increase preload force, while flat washers do not have this function. Generally, fasteners on equipment with vibration are equipped with spring washers.
When the load is relatively large and the load is subject to vibration, a combination of flat washers and spring washers must be used. Spring washers are basically not used alone, they are used in combination.
Product Parameters
| Item |
Spring washer |
| Material |
carbon steel / Stainless Steel |
| Finish |
zinc/HDG/Stainless Steel |
| Color |
BLACK |
| Thread |
Fine thread |
| Size |
6-30mm |
| Application |
Building,Machine parts,Furniture,Electric power fittings etc. |
Hebei Bolaige New Material Technology Co., Limited
Bolaige Fasteners was founded in 2017, is located in China 's largest fastener producing base -yongnian fasteners center,handan ,hebei province .we have two branch factories for manufacturing.
We main produce: Wedge anchors, Hex bolt, 8.8 High strength bolt. Hot-dip gaivanized bolt. Nut. Drop in Anchor. Self-Drilling Screw. Self Tapping Screw. Drywall Screws. Chipboard Screws. Foundation bolt, Thread bolt, sleeve anchors and electric power fitting other customize fasteners and so on .
We can produce the various standard such as : DIN, ASTM, ASME /ANSI, BS and other standards. Our products are widely used in machinery, petrochemical and other fields. We have high quality, good production capacity, punctual delivery and better after-sales evaluation. Over the past few years, we provide good service to customers from Aisa,South America ,Russia ,Middle east and so on .
We will continue to implement the "quality first, customer first" principle, to provide customers.
1. When can I get my quotation?
We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.
2. How can I get a sample to check your quality?
After price confirmation, you can require for samples to check our quality. If you need the samples, the sample is free, but you need to pay the express fee. But the express cost can be refundable after order confirmation when your quantity of the order is more about the MOQ.
3. What is your terms of payment ?
30% T/T in advance , the balance to be paid against BL copy.
4. How to order?
Step1: Just tell us the size/model and the quantity, so that we quote you first
Step2: Confirm price and order details
Step3: We will arrange production for you after receiving your deposit
5. Why choose us?
(1)Stable and traceable raw material suppling lines
(2)10 years manufacturing and exporting experience
(3)Controllable delivery time
(4)Flexible payment term
(5)Multilingual service: English/Russian/Spanish and so on.
6. How about the after service of your product?
We usually feedback within 24 hours after we get your complaint. And we can guarantee a satisfied solution to every customer
Audited Supplier 
Audited Supplier 
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