China hex washer self drilling screw wholesale customized
- NEWSTARWDH
- CHINA
- 7-35 DAYS
- 5000 TONS
Self-drilling drill bit, anti-aging EPDM seal, the same colored nut as the color plate.
Self-tapping drill bit: drill bit designed for thick girders; 12.5mm steel boring bar drilled once; drilling, tapping and fixing at one time.
EPDM gasket for self-drilling screws with good physical and chemical resistance.
Hex washer self drilling screw with EPDM washer
Product Parameters
Standard: | ASME B18.6, DIN7504K， DIN7504P，DIN7504N |
Size: | #4(2.8)-1/2" |
Material: | Carbon Steel, Alloy Steel, Stainless Steel |
Length: | 10-180mm (3/8”- 7”) |
Head type: | hex hex washer |
Drive type: | hex socket |
Screw type: | BSD, CSD |
Finish: | Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G |
Packing: | bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand |
Application: | Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating |
Equipments: | Caliper, Go&No-go gauge, Tensile test machine, Hardness tester, Salt spraying tester, H.D.G thickness tester, 3D detector, Projector, Magnetic flaw detecter |
Supply Ability: | 5000 tons per month |
MinimumOrder: | 500kgs for each specification |
Trade Term: | FOB/CIF/CFR/CNF/EXW/DDU/DDP |
Our advantage: | One-stop shopping; OEM |
Notice: | Please lets know the Size, quantity, Material or Grade, surface, If it is special and Non-standard products, please supply the Drawing or Photos or Samples to us |
Description
Product name | Self Drilling Screws |
Place of origin | China(Mainland) |
Brand Name | NEWSTARWDH |
Port | Qingdao or according to requirement |
Delivery time | Normally in 7-35 days, according to quantity |
MOQ | 500kgs for each specification |
Mark | According to customer’s requirement |
OEM | Available |
Hex Washer Head Self Drilling Screws Surface Treatment Method
1. Hot dip galvanizing: This is accomplished by immersing the carbon steel component in a plating bath of molten zinc at a temperature of about 510 °C. The result is that the iron-zinc alloy on the surface of the steel piece gradually becomes passivated zinc on the outer surface of the product. Hot dip aluminizing is a similar process.
2. Electroplating: The electroplated component is immersed in an aqueous solution containing the deposited metal compound, and an electric current is passed through the plating solution to cause the electroplated metal to be deposited and deposited on the component. Generally, electroplating is performed by galvanizing, copper, nickel, chromium, copper-nickel alloy, etc., and boiled black (blue), phosphating, and the like are sometimes included.
3. Mechanical plating: The surface of the product is impacted by the particles of the coated metal, and the coating is cold welded to the surface of the product.
The EPDM washer we offer are available in 14mm and 16mm diameters and are customised.
EPDM (rubber): EPDM rubber, a copolymer of ethylene, propylene and a small amount of non-conjugated diene. It is a kind of ethylene propylene rubber and is represented by EPDM (Ethylene Propylene Diene Monomer) because its main chain is It is composed of chemically stable saturated hydrocarbons and contains unsaturated double bonds only in the side chain. Therefore, it has excellent resistance to aging, such as ozone, heat and weather resistance. It can be widely used in automotive parts, building waterproof materials, wire and cable sheathing. , heat-resistant hose, tape, automotive seals and other fields.
Quality control
our company strictly complies with ISO9001 system. All our products are subjected to strict test and inspection in each process by the workers periodically, starting from the raw materials delivered to the factory.
Test Report
If you require, the test report form the third part is available
Packaging Details:
A.
| SIZE | KGS/CTN | KGS/CTN |
| 24CTNS/PALLET | (11-22)KGS/CTN | 0.47 |
| 48CTNS/PALLET | (11-17)KGS/CTN | 0.35 |
| 36CTNS/PALLET | 15KGS/CTN | 0.33 |
| 30,40,50CTNS/PALLET | 15KGS/CTN | 0.35 |
| 36，48CTNS/PALLET | (10-22)KGS/CTN | 0.36 |
| 1CTN/PALLET | 803KGS/CTN | 4.55 |
| BAG | 25KGS/BAG |
B. According to customer special demand.
We also accept customization order according to your samples and drawings
If you have other questions or concerns, please feel free to contact us.
