Carbon steel coated screws

①Reasonable coating thickness can effectively enhance the corrosion resistance of the screws, without affecting the tapping speed and ease of installation, Yingfeng coated self-tapping screws with unique Scarada® coating technology, the coating surface is uniform and has a certain thickness, not easy to wear and does not affect the tapping speed of the screws in the slightest;
② Our coated self-tapping screws have strict requirements in terms of anti-corrosion performance, up to 2500H salt spray test, 30 acid rain cycle test, anti-corrosion grade up to Australia C4+ standard, and SGS international certification, excellent anti-corrosion performance.
③ Our coated self-tapping screws are processed by room temperature link, no high temperature tempering, no pickling and applied electric field, no hydrogen embrittlement phenomenon, and we will carry out hydrogen embrittlement test of 24Hor48H in PQC process to ensure that our screws have no brittle breakage phenomenon.
④Our Scarlet Coatings® meets the EU RoHS environmental standards, and does not contain heavy metals such as lead (Pb), cadmium (Cd), mercury (Hg), and hexavalent chromium (Cr6+) and other hazardous substances, and our production has always been in line with the pace of the global environmental protection cause.
Due to strict production requirements and quality control, our coated self-tapping nails are highly resistant to corrosion and water, with a service life of up to 75 years, making them an excellent choice for building fastening system projects.
 

Installation:
Yingfeng composite screw screw 435 material surface hardness ≥ HRC55, combined with high toughness stainless steel material, conventional 12-14TY-B screw tensile force > 11000N, shear force > 8000N, 3mm Q355 steel plate pull-out force ≥ 6000N, high hardness but not easy to break.