This specification covers the chemical, mechanical, and dimensional requirements for metric hardened steel washers for use with fasteners having nominal thread diameters M12 through M100. These washers are intended for general-purpose mechanical and structural use with bolts, nuts, studs, and other internally and externally threaded fasteners. These washers are suitable for use with fasteners covered in Specifications A 325M, A 490M, A 563M and with fasteners of Specification F 568 property classes 8.8 and higher.



Product Description:  



Free Samples for standard fastener from Jiaxing City Qunbang Hardware
  
QBH Promise: 
1. High quality
2. Competitive price
3. The shortest delivery
4. The fastest response
5. The best service


 FAQ
Q:Are you a factory or trading company?
A: We are factories, mainly producing fasteners, such as nuts, bolts, screws and rods, and meanwhile, we also manage other hardware products.
 
Q: Where is your factory located? How can I visit there?
A: Our factory is located in Jiaxing City, Zhejiang Province with a good location and convenient transportation, which is next to Shanghai Port, Ningbo Port and Zhapu Port.
 
Q: How does your factory do regarding quality control?
A: "Quality is priority" we supervise each production link and we always attach great importance to quality controlling from the beginning to the end.


Awaiting for your kind inquiry! Thanks & best regards!
 
For more information:  http://qbfastener.en.made-in-china.com  &  http://qbfastener.en.made-in-china.com