bobbin case tension spring screw 139975-452

FOB Reference Price:Get Latest Price
$0.008 - $0.50 / Pieces | 10000 Piece/Pieces (Min. Order)
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Quick Details
Place of Origin:
Guangdong, China (Mainland)
Brand Name:
Model Number:
Quality Certificate::
ISO9001:2008, ISO14001:2004
ISO,GB,DIN,JIS,non standard as design
spring screw
Carbon,Stainless steel/iron for spring screw
Nature, nickel-plating,Zinc-plating, chrome-plating
Drawings or Samples
Good anti-corrosion ability
Electronic assembly,computer,Cabinet,Chassis
Supply Ability
Supply Ability:
10000000 Piece/Pieces per Day
Packaging & Delivery
Packaging Details
Inner-Plastic Bag; Outer -Standard Carton Box or per your request
Lead Time :
7-15 Days


Item name:bobbin case tension spring screw 139975-452
Standards:ISO, DIN,  AS/NZS, GB, ANSI , BS JIS.
Material:Stainless steel, carbon steel, copper/brass,alloy steel or as request.
Size:M2-M30 or as request.
length:as request.
Grade:4.8 8.8 10.9 12.9
Surface treatment:Passivation,Chromium-Plating,Black, Zinc-Plating,nicklel plated,HDG ,black or as request
Features:Good anti-corrosion ability, kinds of coatings
After-sale service:If there are any quality problems,  please contact with us at once


B.More detailed product:

Item name:bobbin case tension spring screw 139975-452
Quality Assurance:ISO9001:2008 Certificate
Machining Equipments:Threading machine, Cutting slot machine, Punching machine,  CNC lathe, Cold heading machine etc.
Materials:Aluminum Alloy:5052 /6061/ 6063 / 2017 / 7075 / etc.
Brass Alloy:3602 / 2604 / H59 / H62 / etc.
Stainless Steel Alloy:303 / 304 / 316 / 412 / etc.
Steel Alloy:Carbon Steel / Die Steel / etc.
Other Special Materials:Lucite / Nylon / Bakelite / etc.
    We handle many other type of materials. Please contact us if your required material is not listed above.
    100% inspection before shipment

C.Quality control systems:

name:bobbin case tension spring screw 139975-452
Quality Certificate:ISO9001:2008, ISO14001:2004
Inspection quality system:ISO standard, 100%  inspection through the production.
Equipment:Threading machine, Cutting slot machine, Punching machine,  CNC lathe, Cold heading machine.
Inspection process:Incoming quality control →Process Quality Control →Final Quality Control → Pre-shipment Quality Control

Product Image:


D.Why Choose ?

RICH EXPERIENCE: We have been engaged in bobbin case tension spring screw 139975-452 for 10 years. Our company had good reputation with customers from American, Europe,North America, and Japan,india etc. We also have a good team for sale and quality control.  


GOOD SERVICE: We will respond to you within 24 hours, We provide the perfect pre-sale and after sale service.

LOW PRICE: You will find that our low priced,bobbin case tension spring screw 139975-452 including the shipping will be cheaper than our competitors total cost on same name brand, same quality parts.


E.Our advantages:

1. Precision: according to your drawings.  


2. Equipments: Threading machine, Cutting slot machine, Punching machine,  CNC lathe, Cold heading machine etc.  


3. Parts are used on vehicles, printing machines, food processing machines, machines, electronic machines, etc.  

4. Supply metal, mechanical parts machining, surface treatment such as anodization and plating according to our customers' requirement.  


5. Our products have been exported to America, Canada, Russia, Germany, Belgium, Japan with high quality.  


6. Offer OEM service according to your drawing and samples.  


7. Quality Assurance: 100% inspection before shipment by micrometer, height gauge, hardness tester, projector measuring machine, coordinate measuring machine.

Our equipment:


Our clients come from all over the world:

Quality Certification:


Q1: Why choose Chuanghe?

To provide our customers with first-class services in the supply bobbin case tension spring screw 139975-452 of quality minimizing costs.

1.1. Vision: We . to build successful relations with our partners and be their First Choice Supplier.

1.2. Mission: professional customer service, and innovation in technology. Further more, we do not only offer you more reasonable quality and price than your expectations, but also would like to be your friend and to provide you market-sales suggestion for your reference.   


Q2.How is quality ensured? 

All our processes strictly adhere to ISO9001:2008 procedures. And we have a one year quality warranty against B/L issue date. If the product does not work properly as described, and the problem is proven to be at our fault, we will provide exchange services  for the same specific item.


Q3:If you can not find on our website the product you need how to do?

You can send the pictures/photos and drawings of the products you need by email ,  Or you can send us samples by DHL/TNT, then we can develop the new model especially for you.   


Q4:How to Custom-made (OEM/ODM)

If you have a new product drawing or a sample, please send to us, and we can custom-made the hardware as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.


G.About our service:

Design time:2-3 days
Moulding and samples time:2-3 days
Lead-time:7-15 days
Trade terms:FOB Shenzhen/Hongkong/Guangzhou, EXW Dongguan, CIF, CFR
Terms of payment :TT 30% deposit in advance, 70% Balance Before shipment,100% L/C at sight, Western Union., Ali- pay,
Best price could be offered within 24Hours after fully receipt of your sizes, material, quantity, as well as packing information.



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Because it is convenient we can more quickly to give you a quotation. Thanks!
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