(1)Electrophoresis blackening is also a chemical reaction, the purpose is to produce an oxide film on the metal surface. Common practices are: cleaning + quenching furnace + cleaning + tempering furnace + dip anti-rust oil;tempering furnace + dip blackener + drying + dip anti-rust oil.
This product name is Black zinc cross recessed flat small m1 screw.Our raw materials are stainless steel,steel,carbon cteel,brass,the raw material for this product is stainless steel,customers can also choose the raw materials they want.Head type is flat head.Surface treatment is galvanized,and the color can be customized according to customer requirements.
(2)Product Show
Product Name:Black zinc cross recessed flat small m1 screw
Material:Steel and also stainless steel, carbon steel are ok for choice
After sales service:we will follow up goods for every customer and help solve problem after sales.
Custom Service:
If you want custom service,please kindly send us the detail information(material,finish,size,ect).
Or you can send us samples,we will manufacture the products totally according to your samples
Tolerance:±0.02mm
General usage range:mobile phones, laptops, televisions and other terminal electronic products






(3)Trade & Market
| Main Markets | Total Revenue(%) |
| Domestic Market | 20% |
| North America | 20% |
| Northern Europe | 10% |
| Eastern Europe | 10% |
| South America | 7% |
| Central America | 5% |
| Western Europe | 5% |
| Eastern Asia | 5% |
| Southern Europe | 5% |
(4)More Details

(5)Packing & Shipping
There are many ways to transport this:
1. Inner Packaging: PP bag, bubble bag, plastic wrap etc.
2. Outer Packaging: carton, wooden case, pallet etc.
3. According to customers' requirement.
(6)Service:
1.For every order we can guarantee that you can have consistant quality and fast services.
2.For any technical problems we have professional engineers to offer solutions for you.
3.You can get quality products from us at reasonable prices
4.We have our own shipping forwarders to arrange shipment and save you troubles looking for shipping company.
5.Fast services, We are happy to deal with any problems you meet with before /during/after buying from us.
(7)FAQ
1. Can you do customized design and size?
Certainly. We specialized in ODM & OEM. Please provide drawing or samples
2.Where is your factory?
Our factory located in floor 3-4, no.2 workshop, no.30 of DaBu Tongchang Road, longDong Community, Baolong Street, longgang district, Shenzhen, Guangdong, China 518116
3.What kinds of working machining range of your machine and tolerance ?
Usually our Machines working machining range from 1-55MM ,the tolerance could meeting ±0.01MM .
(8)Generally, carbon steel is cyanidated and blackened to improve corrosion resistance. Normally, the corrosion resistance of stainless steel>=surface cyanidation blackening treatment, so stainless steel is not blackened.
