
Lingyufab is a professional China-based manufacturer specializing in high-quality industrial thread rolling screws, serving global leaders in the home appliance and industrial automation sectors, including Mitsubishi Electric. We manufacture a wide range of standard fasteners strictly according to JIS, DIN, ISO, and ANSI standards, while also supporting custom non-standard requirements for specialized metal-to-metal applications. Our production focuses on high-precision thread rolling screws from M3 to M6, featuring specialized tri-lobular thread profiles to ensure exceptional vibration resistance and high-strength performance. As a direct factory, we leverage advanced cold heading and thread forming technologies to ensure every screw, whether a standard component or customized based on your technical drawings, delivers the reliability required for high-end systems. Contact us today for a professional thread rolling screw manufacturer.
As a direct manufacturer, we specialize in high-precision thread rolling screws specifically engineered for the home appliance and industrial sectors based on JIS standards. We have served over 50 global clients and strictly follow Japanese quality management systems to deliver reliable fastening solutions for demanding clients like Mitsubishi Electric. Our dedicated facility focuses on ensuring 100% thread geometry accuracy and consistent surface hardening, allowing our thread rolling screws to perform flawlessly in automated production environments where low driving torque and long-term durability are paramount.
DIN 7500C-2009
Cross recessed round head rolling screws-type H


Customized Manufacturing Beyond DIN 7500CWhile the table above details our DIN 7500C (Form CE) specifications, our facility is fully equipped to manufacture the complete range of trilobular thread-rolling screws across various international standards. Whether your project requires the aesthetic finish of a countersunk head or the high-torque capability of a hex flange, we provide precision-engineered solutions tailored to your blueprints.
Full Compatibility Across Global Standards:
Comprehensive Head Styles: We manufacture all DIN 7500 profiles, including Form ME (Countersunk), Form DE (Hexagon), and Form PE (Hexagon Flange with Cross Recess).
JIS Standard Specialist: As a specialist in Japanese Industrial Standards, we offer full compliance with JIS B 1122 (Type C), ensuring superior drive precision and threading performance for Asian-spec automated lines.
Certified Performance: All thread-forming screws undergo rigorous case-hardening processes to meet ISO 7085 mechanical requirements, guaranteeing successful thread extrusion in steel, aluminum, and copper.
ANSI/ASME Support: Inch-series equivalents (e.g., #8-32, #10-24) are available to support North American automotive and industrial projects.
Can't find your specific dimension? [Contact our Engineering Team] for custom head diameters, thread lengths, or specialized surface treatments (Zinc, Black Oxide, or Magni coating).
We utilize advanced multi-station cold heading and specialized thread forming equipment to produce a wide range of industrial thread rolling screws. Our core manufacturing expertise focuses on Screws from M3 to M6, available in multiple head styles including pan head, hex head, and flat head, combined with tri-lobular thread profiles to match your technical drawings and assembly requirements for metal substrates. Every product undergoes controlled case hardening to ensure the screw can effectively form its own mating threads without material removal or chip creation. To guarantee superior batch-to-batch consistency, we utilize high-speed optical sorting machines for 100% dimensional verification and in-house salt spray test chambers to verify the corrosion resistance of our Zinc Cr3 plus and specialized protective coatings. If you are looking for a reliable thread rolling screw manufacturer for your next project, please contact us today.


We source and process materials strictly according to your engineering requirements and BOM to ensure optimal forming performance and mechanical strength for every fastener. Our manufacturing range primarily covers high-quality Heat-treatable Carbon Steel and Stainless Steel such as SS410, selected for their ability to achieve the high surface hardness required for thread forming in industrial automation and home appliance equipment. All thread rolling screws undergo precise surface treatments, including Zinc Cr3 plus plating, which is verified by our in-house salt spray testing to meet the specific JIS corrosion resistance standards. Every batch is finalized through 100% optical sorting to ensure total compliance with the dimensional standards and hardness profiles required for your final assembly and high-speed automated production lines.
These are high-performance fasteners featuring a tri-lobular (three-lobed) thread shape designed to roll or form their own threads in pre-drilled holes within metal substrates. Unlike cutting screws, they displace material to create a secure, high-friction fit without generating chips. As a trusted OEM supplier for global leaders like Mitsubishi Electric, we produce a specialized range of thread rolling screws from M3 to M6. We ensure every screw is manufactured strictly according to JIS and international specifications based on your technical drawings, providing the critical vibration resistance and structural stability required for high-end appliances and industrial systems.
Our thread rolling screws are characterized by 100% thread accuracy and superior batch-to-batch consistency. By utilizing high-speed optical sorting technology, we ensure every component meets tight dimensional tolerances for the tri-lobular profile, effectively preventing jams or cross-threading in your automated assembly and screwdriving tools. Additionally, our screws provide excellent corrosion resistance verified through rigorous salt spray testing. Their unique design offers low driving torque and high strip-out resistance, ensuring the mechanical integrity needed for demanding metal-joining applications.
We follow a rigorous manufacturing flow designed for world-class reliability and total JIS compliance. The process begins with a detailed review of your technical drawings or JIS standards, followed by high-speed multi-station cold heading to form the screw head. We utilize specialized tri-lobular thread rolling dies to create the thread-forming profile and apply controlled case hardening to ensure the surface is hard enough to form threads in the target metal. After durable surface treatments such as Zinc Cr3 plus plating, every batch undergoes salt spray verification and 100% optical sorting under Japanese quality management systems to guarantee that only perfect fasteners reach your production line.
We provide a scalable manufacturing solution backed by our deep experience serving world-class appliance and industrial brands. By specializing in JIS standards and maintaining a direct-factory model, we offer the precision and quality baseline required by leading engineering firms at competitive prices. Our commitment to 100% thread accuracy and consistent surface hardness, combined with our advanced optical sorting and environmental testing capabilities, makes us the reliable partner for your global industrial fastener procurement and supply chain needs.
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