Flat washer are mainly punched out from iron plates. Flat washer: after lock, use elastic pad have the effect of locking, and of course to a double nut effect is poor. Single nut + flat mat, play mat: rely on the nut itself locking force and elastic cushion locking performance, a double nut.
Flat washer: only increase the surface area Prevent the soft substrate was installed a damaged, or is blocking hole.
Locking method still has a lot of, this is just a very old some basic locking method, but also very practical.
||Metal flat washer
||White and yellow
||DIN125 and DIN9021
||Iron / Carbon steel
||4.8 and 8.8
1. Good after-sales service. Any small problem happening will be solved at the most prompt time;
2. Many years of export experience;
3. Specifications list is available upon your request;
4. Welcome to send enquiry, we will reply soon;
5. Prompt shipment with professional documents;
6. Custom packing, with photo before shipment;
7. High quality and competitive price.
HANDAN QIANBANG FASTENERS MANUFACTURING CO.,LTD is located in China’s largest fasteners production base---Yongnian fasteners centre.
Our factory was founded in 1991.We have several sets of advanced equipments, adopt advanced modern management and use high quality steel to produce high quality products. The products sold throughout the domestic and exported to Southeast Asia and Europe and other countries and regions. Our products win good reputation with domestic and foreign customers.
Our factory mainly produces: all kinds of flat washers, spring washers, expansion screws, hex nuts, flange nuts, hex bolts, flange bolts, sleeve anchor, fundation bolts, and thread robs with DIN, BSW, ANIS,.And we also provide the OEM, Meanwhile, we are manufacturing factory, so we can give you the best quality and the good price.
Q: Are you trading company or manufacturer ?
A: We are a factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.