Carbon Steel Self-Tapping Screws
Product Overview
By combining a triangular thread (tri-lobular thread) self-tapping design, a green Ruspert coating, and a countersunk head structure, this screw achieves the triple advantages of high installation efficiency, strong locking force, and long-lasting anti-corrosion, making it a highly cost-effective connection solution in industrial manufacturing and outdoor engineering.
Product Applications
Industrial Equipment: Used for the rapid assembly of metal structural parts in machine tools, automation equipment, electrical cabinets, etc., especially suitable for component connections in environments with frequent disassembly or high vibration.
Construction & Curtain Walls: In outdoor engineering, such as steel structures, aluminum curtain walls, and ventilation ducts, its corrosion resistance withstands wind and rain erosion to ensure long-term stability.
Automotive & Transportation: Applied to body sheet metal, chassis components, interior parts, etc. The triangular thread self-tapping feature reduces dependence on pre-formed holes, boosting assembly efficiency.
Home Appliances & Electronics: In products like outdoor air conditioning units, washing machine enclosures, and server cabinets, the countersunk design ensures a neat appearance, and the green coating prevents rust from contaminating internal components.
Outdoor Facilities: For street light poles, billboard brackets, solar mounts, etc., the 500H salt spray resistance handles the harsh conditions of coastal or high-humidity regions.
Product Features
Self-Tapping & Locking for Efficient Installation: The triangular thread design allows the screw to automatically cut and form internal threads upon driving, eliminating the need for extra tapping or matching nuts, which saves steps and costs. The sharp point structure enhances cutting capacity, making it especially suitable for thin sheet metals, hard plastics, and other materials.
High-Strength Locking to Prevent Loosening: The arc-shaped cross-section and high-hardness surface of the triangular thread generate greater friction during locking. This effectively prevents loosening caused by vibration, making it suitable for dynamic load scenarios.
Extremely Strong Corrosion Resistance: Through a specialized alloy ratio and heat treatment process, the green Ruspert 500H coating withstands over 500 hours in salt spray testing. This far exceeds regular zinc-plated screws (typically 100–200 hours), making it suitable for outdoor, humid, or chemical environments.
Countersunk Design for Flat and Clean Aesthetics: The flat head structure can embed completely into the workpiece, preventing protrusions from affecting appearance or functionality. It is commonly used in equipment enclosures, decorative parts, and other components with high surface flatness requirements.
Precise Specifications with High Adaptability: The 6.0-24 fine thread provides finer locking force control, suitable for precision machinery or thin-walled structures; the 16mm length accommodates medium-thickness plates (such as 2–5mm metal plates).
| Material | Carbon Steel |
| Surface Treatment | Ruspert |
| Head Type | Flat Head (Countersunk Head) |
| Drive Type | Phillips Drive |
| Thread Type | Shallow Thread |
| Screw Diameter | Approx. 6.0mm |
| Screw Length | 16mm |
| Screw Type | Self-tapping Screw |
| Corrosion Resistance | High (suitable for humid, outdoor, and chemical environments) |
| Applicable Tools | Phillips screwdriver or power tools |

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malingfei@linghongscrew.com

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