Stainless steel cross recessed pan head self tapping screws for fastening sheet metal or non-metallic materials, connections, do not hit the bottom hole and tapping in the teeth when used directly with the tool can be screwed into the lock products. Stainless steel self-tapping screws in the drill cuttings out of the matrix no teeth. Because stainless steel self-tapping screw thread and general different Tai'an A4-80 screw head for sharp, teeth from relatively large, with no crumbs tapping screws A4-80 bit like, you can not tap directly into a spin Zaozhuang A4- 80 screws, metal and plastic are usually connected using this method. Stainless Steel Phillips pan head self tapping screws a lot of cash sales. Standard: GB / T845 DIN7981 stainless steel internal tooth lock washers - made of SUS304, Jinan Road ground spot sales company common specifications, scope of supply M2-M16 can be further processed produce drawings based on user. Common standards GB / 861.1 DIN6797J tooth lock washer stainless steel - made of SUS304, common specifications inventory online, the company's range of M2-M20 can also be customized drawings. Jinan Road ground common standards GB / T862.1 DIN6797A Zibo A4-80 screws, Jinan Road ground (certified), A4-80 screws provided by Jinan Daoqin Trading Company. Jinan Daoqin Trading Company (www.daoqinshangmao.com) (www.daoqinshangmao.com) Shandong Jinan, hardware accessories leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Jinan Road ground in leadership with the staff warmly welcome all inquiries negotiations to create Jinan Daoqin a better future. You can also access (www.daoqinshangmao.com/supply_details_39828780.html), for more information about the company.