Import Binding Head Machine Screw — Buy in Bulk from Supplier in China

Shenzhen Baohui Hardware Electronic Co.Ltd offers binding head machine screws in thread sizes from M1.2 to M8, manufactured to GB, JIS, ANSI, DIN and ISO standards for cross-border compatibility. The binding head design provides a flat top with a rounded underside, creating a low-profile fastening surface that sits flush or slightly above the material. Finish options include zinc coated (Zc), zinc oxide (Zo), zinc white (Zw) and zinc black (Zi), each selected for corrosion resistance and aesthetic matching in finished assemblies.

These screws are produced from carbon steel wire rod, typically grade 4.8 or equivalent, with a standard Rockwell hardness of 71-95 HRB for the core material. The zinc-based finishes provide 5-8 micrometres of protective plating, meeting 24-hour neutral salt spray resistance as a typical benchmark for indoor applications. Thread forms include machine threads for pre-tapped holes and self-tapping variants for sheet metal or plastic insertion. The binding head geometry, with its broad diameter relative to thread size, distributes clamping load across a wider area than pan or round heads, reducing stress concentration in thin or brittle substrates.

Applications span electronics enclosures, automotive interior trim, medical device housings and furniture assembly, wherever a smooth, snag-free fastener head is required. Buyers should confirm thread pitch, length under head and drive type (typically Phillips or slotted) with the supplier to match their hole preparation. Standard packaging is bulk in carton, though reel-fed options may be available for automated assembly lines. Incoterms and minimum order quantities require direct confirmation with Shenzhen Baohui, as these are not stated in the listing data.

Shenzhen Baohui Hardware Electronic Co.Ltd is located at 3 - 4 F / 3 D, Jiashitai Techparks, Tangwei Road, Shenzhen 518103, Guangdong, China. The supplier is classified as an imported-tier, harbor-trust vendor on the platform, with a response rate of 0.00% and an average response time of zero hours recorded. These signals suggest the profile may be newly listed or currently inactive in responding to enquiries, so buyers should initiate contact early to gauge current availability and communication reliability.

The company operates from Shenzhen, a major hardware manufacturing hub in Guangdong Province with extensive fastener supply chain infrastructure. The listing does not state factory ownership, production capacity, workforce size, revenue figures, client references or certification scope. Buyers should request ISO 9001 or equivalent quality system documentation, along with material test certificates and plating compliance reports, before committing to volume orders. The product range centres on standard and custom machine screws for industrial assembly.