(1)Standard fastener inspection items are divided into three major parts, namely size, mechanical properties and surface defects. The specific inspection items for each part have different regulations according to different products. For example, the dimensional inspection item specifies the threaded gauge, the thread stop, the thread diameter, the opposite side width, the diagonal size, the nut height, the perpendicularity of the nut bearing surface and the thread axis, and the inner diameter of the flat washer. Diameter, thickness, coaxiality of the outer circle to the inner hole, and flatness. Mechanical performance test items, which specify hardness and tensile strength for hex nuts; and only hardness for flat washers.
(2)Product Show
Product Name:Round head black zinc small toy screws
Material:Steel and also stainless steel, carbon steel are ok for choice
Customer design:our experienced engineer team can developed the products and manufacture
in accordance with samples,drawings or only ideas
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
(3)Our Factory
(4)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% |
(5)More Details
(6)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.
(7)FAQ
1.What is your main products?
Our main products include screw,nut,bolt,CNC parts and related products.
2.How to ensure that every process's quality?
Every process will be checked by our quality inspection department which insures every product's quality. In the production of products, we will personally go to the factory to check the quality of products.
3.Will my drawing be safe after you get it?
Yes, we will not release your design to third party unless with your permission.
(8)Contact:
Wechat:130 488 474 42
Tel:86-130 488 474 42
（9）This product name is Round head black zinc small toy screws.Our raw materials are stainless steel,steel,carbon cteel,aluminum,brass,the raw material for this product is stainless steel,customers can also choose the raw materials they want.Head type is phillips round head.Surface treatment is galvanized,and the color can be customized according to customer requirements.