M4 M2 70mm Stainless Steel A2-70 A4-80 DIN7504K Hex Flange Head Self Drilling Screw

M4 M2 70mm Stainless Steel A2-70 A4-80 DIN7504K Hex Flange Head Self Drilling Screw

Self-drilling screw with tapping screw is a kind of screw, with a bit through a dedicated electric tool construction, drilling, tapping, fixed, a complete lock, self-drilling screw with tapping screw sheet is mainly used in some parts of connection and fixed, such as choi steel connection with choi steel, color steel plate and purlin, wall beam connections, etc., its penetration is generally not more than 6 mm, not more than 12 mm;

Self-drilling and tapping screws are often exposed outdoors and have strong corrosion resistance. The rubber sealing ring can ensure that the screw is impervious to water and has good corrosion resistance;

Usage: it is a kind of screw, mainly used for fixing color steel tile of steel structure, also can be used for fixing sheet of simple building. It cannot be used for metal-to-metal bonding. Material has iron, stainless steel two kinds.

Models: φ 4.2/ φ 4.8/ φ 5.5/ φ 6.3mm, the specific length can be negotiated according to requirements.

According to the different drill tail can be divided into: round head rice/cross/plum blossom, countersink head (flat head)/rice/cross/plum blossom, hexagonal hua Si, round head Hua Si (large flat head), horn head

Production Process

Our service

Professional Manufacturer : All of our Fastener are designed and manufactured according to buyers'specification and performance.

Quality is guaranteed : Durability testing and critical technical design to enhance fasteners lifetime.

Cost effective : Wide range of parts selection , Competitive prices with professional factory supply.

Customized ideal Fasteners : customized services according to the samples and drawing offered.

Certification

Through scientific management, Jiaxing Haina fastener Ltd company has been obtained ISO9000 certificate of Quality Managerment System, SGS and BV international certificate system of Make in China.

RFQ
1. How do you let me trust you.

We have own import & export right, and we are gold mumber of alibaba and made in china, We get credit guarantee from Alibaba Group. You can make an order by alibaba to us directly.  

2. How about your price.  

High quality products with reasonable price. Please give me a inquire, I will quoted you a price for you refer at once.  

3. How do you control your quality.  

We request QC inspect every productions links for each bacth goods. And we can provide you MTC and mill certificate when the goods is finished.  

4. Could you provide free samples?  

For new customer, We can provide free samples for standard fastener, But the clients will pay the express charges. For old customer, We will send you free samples and pay express charges by ourself.  

5. Do you accept small order?  

Sure, we can accept any orders, we keep lots of stock for all stainless steel,carbon steel nut and bolt, like hex weld nut, cage nut, wing nut, square weld nut,Cap nut, hex nut, flange nut. Metric 8.8Grade, 10.9Grade 12.9Grade Hex bolt and hex socket cap screw, part asme hex cap screw.

6. How about your delivery time

General speaking, if the goods is in stock, we can delivery them with 2-5days, If the quantity is 1-2container, we can give you with 18-25days, if the quantity is more than 2 container and You are very urgent, we can let factory priority produce your goods.  

7. What is your packing.  

Our packing is 20-25kg for one carton, 36 or 48pcs cartons for one pallet. One pallets is about 900-960kg, We also can make customer's logo on the cartons. Or we customized cartons according to customers' requestment.

8. What is your payment term

We can accept T/T, LC for general order, Paypal and Western union for small order or samples order.