Import Carbon Steel (C1022, C1018) Self Drilling Screw — Buy in Bulk from Supplier in Taiwan

Carbon steel self-drilling screws in grades C1022 and C1018 from Jin Jing Industrial Co., Ltd. are cold-formed fasteners with a drill point that eliminates pre-drilling in metal-to-metal or metal-to-wood applications. The screws are manufactured from low-carbon steel, offering a balance of ductility and strength, and are supplied with a protective zinc coating to resist corrosion in outdoor or humid environments. Standard thread patterns include coarse and fine pitches, with head styles typically featuring hex or Phillips drives for compatibility with common power tools.

Material composition for C1022 and C1018 grades is standard low-carbon steel with manganese for added toughness, and the screws are heat-treated to achieve a typical Rockwell hardness of B70-B80. Surface finishes are usually zinc-plated for indoor use or zinc-yellow chromate for enhanced outdoor protection, with salt spray resistance often meeting 96 hours as a standard benchmark. Screw diameters commonly range from 3.5 mm to 6.3 mm, with lengths from 13 mm to 75 mm to suit thin sheet metal up to thicker structural applications.

These screws are used in HVAC ductwork, steel framing, automotive assembly, and general construction where rapid installation and high pull-out resistance are required. Buyers typically source them in bulk for manufacturing lines or large-scale projects, with packaging available in cartons or palletized boxes. Jin Jing Industrial Co., Ltd. supplies from Taiwan, with lead times and incoterms confirmed directly with the supplier for each order.

Jin Jing Industrial Co., Ltd. is based in Taichung Hsien, Taiwan, at No.151, Lane 1, Sec. 3, Wenchang Rd., Dadu Township. The company operates as an imported-tier supplier in the fastener market, with a focus on carbon steel self-drilling screws for industrial and construction applications. Its profile indicates a harbor trust tier, which reflects a verified business presence and export capability.

The supplier’s listing does not state specific certifications, production capacity, or response metrics, so buyers are advised to confirm these details directly. Jin Jing Industrial Co., Ltd. positions itself as a source for bulk quantities of standard and custom fasteners, catering to manufacturers and distributors requiring reliable supply chains for metalworking and assembly projects.