“Thenorth tower”brand drill tail self drilling screws and core-pulling rivetformed two big series, complete specifications, material through the U.S. AQSRquality management system ISO9001:2000 certification.The product has been more than 30 years of production history. The technical force is abundant, the “goodand inexpensive”is a sign of the north tower fastening series, perfectafter-sales service, timely tracking users, has been the support and trust of usersat home and abroad. Hasreached the international advanced level, products are sold to more than 40countries and regions.
Thenorth tower of the PIAS drlling screw stainless steel and SUPER PIASTAstainless steel corrosion resistance composite metal drlling screw as the worldfirst, all stainless steel drlling screw, cutting ability better than withmilling cutter, especially in the low speed heavy cutting has reached the worldhigh level.“The northtower” brand drlling screw according to the material of low carbon steel,304 stainless steel, 410 stainless steel, 550 stainless steel.
Stainlessnorth tower card drlling screw, of which 550 patent stainless steel material,its high hardness, high strength, high corrosion resistance, salt fog test ofup to 5000 hours, is a high-tech innovative products.
Lowcarbon steel material of the surface of the north tower card drlling screwcoating color zinc, blue white zinc and dacromet, corrosion degree,respectively, stand up to 48 hours, 1000 hours to 2000 hours of salt spray test.
Thenorth tower card rivet material forming low magnesium and high magnesium, iron,stainless steel series, all form has a round head and a salad.
Thenorth tower card drlling screw head shape with hexagonal dahua division,hexagonal xiaohua, round head, salad head, round washer head,
wei hua, hornhead, large flat head (head all can according to customer requirements of thelacquer that bake, hex washer, leading to system).
Thenorth tower brand has consistently adhered to scientific management,technological innovation, abide by the principle of the quality of thecontract, the figure of enterprises from home and abroad to work together.
