DIN7504K Stainless Steel A2-70 Flange Hexagon Head Collar Self Drilling Screws

DIN7504K Stainless Steel A2-70 Flange Hexagon Head Collar Self Drilling Screws

The tail of the drilling screw is in the shape of drilling tail or pointed tail, without auxiliary processing, it can be directly drilled, tapped and locked on the setting materials and basic materials, greatly saving construction time. Relatively common screw, its high ductility and maintenance force, combination after a long time will not loose, the use of safety drilling tapping once to complete the operation is simple.

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.