Model NO.: RK-SP-01
Lead Time: 3-10 Days
Application: Machinery
Sotck Products: Available
Trademark: Rankoo
Transport Package: Box+Carton+Pallet
Specification: M3.0-M6.4
Origin: China
HS Code: 7318210000
Model NO.: RK-SP-01
Lead Time: 3-10 Days
Application: Machinery
Sotck Products: Available
Trademark: Rankoo
Transport Package: Box+Carton+Pallet
Specification: M3.0-M6.4
Origin: China
HS Code: 7318210000
Stainless steel spring washer M10/M12/M14/M16/M18Standard | ANSI/ASME B18.21.1/DIN127 |
Material | SS304, SS316 |
Specification | 1/4-1 |
Head shapes | Round head |
Screw thread | Coarse thread  |
Screw tip | flat point |
Finish  | A2-70/A2-80/A4-70/A4-80 |
Features | Good anti-corrosion ability |
Grade | A2, A4 |
Certification | ISO9001:2008, SGS, RoHS, Bureau Veritas |
OEM service is also available |
Technical Data
Specification | ANSI/ASME B18.21.1 |
Thickness | |
1/4' | 1.58 |
5/16' | 1.98 |
3/8' | 2.39 |
7/16' | 2.77 |
1/2' | 3.18 |
5/8' | 3.96 |
3/4' | 4.78 |
7/8' | 5.56 |
1' | 6.35 |
Product Detail

Factory Introduction
Our main factory is located in Xinghua city, Jiangsu province and has been in the fastener industry since 2002. We are the branch in Zhongshan City. In order to provide a fast service for domestic customers, we set a warehouse in Zhongshan, so our response time is within 24 hours for domestic customers. For overseas customers, we can delivery the standard fastener within 3 days, and non-standard one in 15 days.Â


Package and Shipment
Our standard package is: neutral inner white box and outer carton, usually 6Â pcs/box according to sizes, outer carton is 27*27*17cm. Pallet is needed if the products are too heavy. For colorful boxes, extra fee will be charged.Â


FAQ
A: Are you a factory or a trader?
We are manufacturer with factory plant located in Xinghua city, Jiangsu province and we are the the branch in Zhongshan city
B: What is your MOQ?
1PC is acceptable,but only for standard products
C: can IÂ have my own design products
Yes, we also offer OEM service and can provide non standard products as well.
D: How is your lead time
For standard products, we mostly have product in stock, so we can make fast delivery. For domestic market(within 24 hours), for oversea market(within 3Â days the fastest). For non-standard products or out of stock products, lead time is usually around 15 days.
E: do you have a website, where can I see your new products?
Yes, our website is www.rankoofastener.com. You can see our new products both from here or through our website
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 Stainless steel spring washer M10/M12/M14/M16/M18
Standard | ANSI/ASME B18.21.1/DIN127 |
Material | SS304, SS316 |
Specification | 1/4-1 |
Head shapes | Round head |
Screw thread | Coarse thread  |
Screw tip | flat point |
Finish  | A2-70/A2-80/A4-70/A4-80 |
Features | Good anti-corrosion ability |
Grade | A2, A4 |
Certification | ISO9001:2008, SGS, RoHS, Bureau Veritas |
OEM service is also available |
Technical Data
Specification | ANSI/ASME B18.21.1 |
Thickness | |
1/4' | 1.58 |
5/16' | 1.98 |
3/8' | 2.39 |
7/16' | 2.77 |
1/2' | 3.18 |
5/8' | 3.96 |
3/4' | 4.78 |
7/8' | 5.56 |
1' | 6.35 |
Product Detail

Factory Introduction
Our main factory is located in Xinghua city, Jiangsu province and has been in the fastener industry since 2002. We are the branch in Zhongshan City. In order to provide a fast service for domestic customers, we set a warehouse in Zhongshan, so our response time is within 24 hours for domestic customers. For overseas customers, we can delivery the standard fastener within 3 days, and non-standard one in 15 days.Â


Package and Shipment
Our standard package is: neutral inner white box and outer carton, usually 6Â pcs/box according to sizes, outer carton is 27*27*17cm. Pallet is needed if the products are too heavy. For colorful boxes, extra fee will be charged.Â


FAQ
A: Are you a factory or a trader?
We are manufacturer with factory plant located in Xinghua city, Jiangsu province and we are the the branch in Zhongshan city
B: What is your MOQ?
1PC is acceptable,but only for standard products
C: can IÂ have my own design products
Yes, we also offer OEM service and can provide non standard products as well.
D: How is your lead time
For standard products, we mostly have product in stock, so we can make fast delivery. For domestic market(within 24 hours), for oversea market(within 3Â days the fastest). For non-standard products or out of stock products, lead time is usually around 15 days.
E: do you have a website, where can I see your new products?
Yes, our website is www.rankoofastener.com. You can see our new products both from here or through our website
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