M3 M4 black machine screw is made from carbon steel with black zinc plating. There are test process for every product.
We noticed that there is wrong use of fasteners. For example, the torque does not match many people think that the screw should be “never tight”, so they are conscious consciously tightening the torque of the screw, resulting in a slip. On the other hand, for the important screws that need to be tightened by torque, some people tend to save their time to use an adjustable wrench, and the result is often loose due to insufficient torque, resulting in mechanical failure.
It is important to know how to use the fasteners correctly.
Product details
| Item | M3 M4 black machine screw |
| Size | M3*4.5 or OEM |
| Raw material | Carbon steel, etc |
| Color | Black |
| Head style | Pan head |
| Drive type | Cross recessed |
| Surface treatmet | Black zinc plating or OEM |
| MOQ | 300,000pcs |
Application
Fasteners can be used in everywhere. They are not obvious to be noticed, but they play a extremely important role. Without the fasteners, the machines, furniture, electronic products, etc, cannot be combined together.
Production Flow
FAQ:
When can I get the products?
Normally, samples will be finished in 7-10 days, and 20-40 days for mass production. We will arrange the production after get the money.
(What is the production time? Samples will be finished in 7-10 days, while mass production will be finished in 20-40days.)
Do you cooperate with some famous brands?
Yes, we have a close business relation with FOXCONN, XIAOMI, OPPO, VIVO, HUAWEI, etc
What is your payment term?
We can accept T/T, LC for general order, West Union or Money Gram for small order or samples order. Usually 30% deposit and the balance before delivery.
Contact us
Shenzhen Lanejoy Technology Co., Ltd
Tel/whatsapp/wechat: +8618948768503
Add: Floor 3-4, no.2 workshop, no.30 of DaBu Tongchang Road, longDong Community, Baolong Street, longgang district, Shenzhen, Guangdong, China 518116