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We produce hex head self drilling concrete screw roofing screws with rubber washers according to customer requirement, please contact us freely for a quotation.
| Customer include Hardware standard parts store, steel structure engineering, steel structure color plate, light steel workshop, color steel combination room, color steel fence, light steel ceiling, billboard installation, etc. |
Material:
There are two kinds of materials: Carbon steel and stainless steel.
1. Carbon steel drill screw, 1022A, Surface hardness 60-70HRC, core hardness HRC32-40, surface treatment is easy to rust, with high hardness and low cost. 2. Stainless steel drill screws, 410, can be heat treated, and the rust resistance is better than carbon steel. 3. Stainless steel drill screws, 304, No heat treatment, strong anti-rust ability, low hardness and high cost, only aluminum plate, wood board, rubber plate can be drilled. 4. Composite drilling screw, the drill is made of carbon steel, and the thread and head are combined with 304 stainless steel Production. |





Package by Carton box.
1.Where are you located?
We are located in Handan city, Hebei Province, China, near to Beijing.
2. Do you accept small / sample orders? And lead time?
The sample is available, lead time according to the factory production plan, usually 7-25 days.
3. How do you ship the goods?
We ship the goods by Sea, or by express, specific discussion.
4. Do you accept OEM or ODM orders?
Yes, OEM and ODM orders are welcome.
5. What payment do you accept?
Alibaba trade assurance, T/T, Western Union, etc.
Handan Rundu New Material Co., Ltd is an industry & trade company, located in Handan City, China, specializing in supplying carbon fiber, fiberglass and fastener products with high quality and competitive prices.
The product range covers carbon fiber car parts and carbon fiber OEM products.
We have an engineering department, R&D department, Marketing department, After-sale service department, Shipping Department, Account department, Quality control department. Over 10 R&D engineers are ready to offer technical support. OEM & ODM products are welcome
Our products are sold to more than 30 countries and regions in Europe, North America, Southeast Asia, and the Middle East, and enjoy a high reputation.
Worker: 90 staffs
Factory area: 3000 square meters
New products from manufacturers at wholesale prices