DIN7504 Galvanized Hex Washer Head Self Drilling Screw

Product Description

Roofing screw used for iron roof,solar bracket,water proof roof screws patch,water proof tide,coloured roofing screws.
Roof screw usually have coloured roofing screws,showroom/big mushroom head roofing screw,hanger roofing screw,polycarbonate construction roofing screws. 

Self-drilling screws are available in stainless steel for weather-exposed areas and in zinc-plated steel for unweathered areas. These steel screws have a head encapsulated by chemical-resistant stainless steel. A rubber-bonded washer compresses to form a watertight seal. 

Product Name	Din7504 galvanized stainless steel hex washer head self drilling screw hex washer head screw
Size	M2-M24,or non-standard as request&design
Material	Stainless Steel,Alloy steel,Carbon Steel,Brass,Aluminum and So on
Grade	4.8,8.8,10.9,12.9.etc
Standard	GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS etc
Non-standards	OEM is available, according to drawing or samples
Finish	Plain, black, zinc plated/according to your requirement
Certification	ISO9001,IATF16949,
Package	according to customers requirement

 

 

How are self drilling screws measured?

They are measured from the top of the head to the tip. Hex and hex washer head screws and bolts, although flat on the top and the bottom, are measured from the bottom of the head. From that point to the tip is the length of the screw. Self drilling screws are measured all the way to the end of the drill point tip.

Package:
1) Bulk packing: 25KG/carton or 25KG/bag;
2) Box packing: 100/200/500/1000PCS per box, then box packed in cartons;
3) Box packing with Pallets: 100/200/500/1000PCS per box, then box packed in cartons, cartons with pallets;
4) Customized package.

 

Application of the self drilling screw:


BOYA FACTORY:

Tianjin Boya Metal Products Co.,Ltd was established in 2007,  mainly producing and exporting various nails, such as  common nail, clout nail, roofing nail, ring shank nail, etc and the screws, drywall screws, chipboard screws, self tapping screws and self drilling screws in tianjin city of china for more than 30 years with our own equipments.


Our factory covers an area of 20 acres ,15000 square metres. Total employee 70 persons, include excellent sales 8 person. Advanced production equipment and processing technical,the annual production capacity reachs about 50000 tons.We have our own nails  and screw  mills with the independent export and import rights.

Our factory located in Binhai,Tianjin, is near to Xingang port and Tianjin airport..The advantages location has ensured punctual delivery time and saved cost. Our products just for exporting, already exported to West Africa, East Africa, Middle East, South America, Southeast Asia etc. So far,we have established the long-term business relationship with Europe clients. And the quality of our products have been approved  by all clients. We are willing to cooperate with you in near future!Our company principles are fine quality,in-time consignment and reasonable price.We sincerely hope to establish business relationships with friends from around the world and to create a bright future together with your firm.




 

FAQ: 

Q1: Are you trading company or manufacturer ?
A1: We are factory.

Q2: Can I visit your factory?
A2: Yes! Warmly welcome to visit our factory. It would be Great if you can inform us in advance.

Q3:The quality of your products?
A3:The company has advanced production and testing equipment .Every products will be 100% inspected by our qc department before shipment

Q4:How about your price?
A4:High quality products with reasonable price. Please give me a inquire, I will quoted you a price for you refer at once.

Q5:Could you provide free samples?
A5:We can provide free samples for standard fastener, But the clients will pay the Express charges.

Q6: What's your Delivery Time?
A:Standard parts: 7-15days,Non-standard parts: 15-25days.We will make the delivery as soon as possible with the guarantee quality.

Q7: How should I order and make payment?
A7:By T/T, for samples 100% with the order; for production, 30% paid for deposit by T/T before production arrangement, the balance to be paid before shipment.