| Product Name |
DIN 7504 Galvanised Steel Hexagonal Head with EPDM Washer Drill Roofing Screw |
| Material |
carbon steel , C1022 with hardened |
| Head style |
hex washer head, hex flange head |
| Finish |
white/yellow/blue zinc coated, hot-dipped galvanized, zinc-nickel alloy coating, black oxidized |
| Diameter |
3.5mm - 6.3mm |
| Length |
13mm - 200mm |
| Drive style |
Hex |
| Application/Use |
WasherSelf drilling screws designed for power driving wood or metal to metal |
| Standard |
ISO15480, DIN7504 |
| Origin |
Zhejiang China |
Hex Washer Head Self Drilling
Roofing Screw is used in wood, fiberglass and metal, and it possesses a drill point enabling it to drill its own hole in thin gauge steel. The sharp threads on these self-drilling screws create their own mating thread when drilled into the material. Perfect for roofing construction, these self-drilling metal screws have a neoprene washer that provides a water-tight seal, and prevents corrosion between surfaces.
These drill into the roof to remove material
Self Drilling
Roofing Screw Have a neoprene washer that provides a water tight seal
Have a finish that is corrosion-resistant
Various colors of paint on heads for specific applications.
Detailed Photos
Our mainly product:Drywall screws, self-tapping screws, machine screws, furniture screws, wood screws, fiberboard screws, European screws, etc., in more than 2000 types, we can also customize according to customer samples.
Our 18 years of experience and commitment to excellence have earned us the reputation as the best fastener manufacturer in our industry.
Screws source manufacturers-our factory was founded in March 2005.We has 70 sets of advanced production equipment, with an annual output of 6000 tons.
our company mainly produces various series of drywall screw, chipboard screw, self-tapping screw, Self-Drilling Screw,machine screw, all kinds of non-standard goods. Products are exported to Japan, Colombia, France,Brazil,Korea,Germany and other Europe and Americ, and praised by the majority of customers!
FAQ
Q1: Are you trading company or manufacturer?
A1: We are the manufacturer. (We are the international trade branch of the factory)
We provide 7x24 hours real-time video verification factory service.
Q2:What is your core product?
A2:We specialize in the production of high quality screws, mainly drywall screws, particle board screws, wood screws, etc.
Q3: How long is your delivery time?
A3: If the goods are in stock, within 15 days. 30-60 days for bulk order.
Q4: What is your terms of payment ?
A4: 30%-40% T/T in advance ,balance before shippment.(For orders less than USD1000, pay 100% in advance to reduce bank fees.)
Q5.Can you provide a sample?
A5: Sure, Our sample is provided free of charge, but not including courier fees.
Choose us!
1) Custom designs available. ODM and OEM are welcome.
2) We hope to maintain long-term cooperation with every customer, we attach importance to quality and insist on providing high-quality products and services.
Audited Supplier 
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