Self Tapping Screw
Self Tapping Screw Manufacturer
Self-Tapping Screws are versatile fastening solutions designed to create their own mating threads during installation, eliminating the need for pre-threaded holes.
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Specification
| Parameter | Specification |
| Standard | DIN 7981 / ISO 7049 |
| Drive Type | Phillips (cross recessed) |
| Head Type | Pan Head |
| Thread Type | AB type self-tapping thread |
| Strength Grade | Case-hardened steel or Stainless A2 / A4 |
| Material | Carbon steel, stainless steel, brass (on request) |
| Surface Finish | Zinc plated, black phosphated, nickel plated |
Size Chart
| Screw Diameter(D) | Length(L) Mm | Pozi Drive Size | Head Diameter(Dk)Mm | Head Height(K) | Metric Range | Approx.Inch Equivalent |
| 2.5mm | 10-25 | PZ1 | 4.7 | 1.4 | M2.5 | #2-#3 |
| 3.0mm | 12-35 | PZ1 | 6 | 1.7 | M3 | #4 |
| 3.5mm | 16-45 | PZ2 | 7 | 2.1 | M3.5 | #5-#6 |
| 4.0mm | 16-60 | PZ2 | 8 | 2.4 | M4 | #7-#8 |
| 4.5mm | 20-70 | PZ2 | 9 | 2.7 | M4.5 | #8-#9 |
| 5.0mm | 25-80 | PZ2/PZ3 | 10 | 3 | M5 | #10 |
| 6.0mm | 30-100 | PZ3 | 12 | 3.35 | M6 | #12 |
Key Features of Self-Tapping Screws
Material-Displacement Precision:
Tailored thread geometries minimize radial stress on soft substrates while maximizing thread engagement area in hard metals.
01
Versatile Drive & Head Architecture:
Manufactured to strict DIN, ANSI, and ISO specifications, ensuring our drives resist cam-out and withstand heavy pneumatic driver shock.
02
Hardened Surface Case:
Advanced heat treatment creates an ultra-hard outer skin capable of forming clean threads in structural steel, while keeping the core ductile to absorb vibration.
03
Engineered Chip Clearing (Thread-Cutting Types):
Specialized cutting flutes efficiently collect and eject material shavings, preventing torque spikes and screw binding during insertion.
04
Typical Applications
DC-Screws' self-tapping fasteners provide critical structural connections across multiple global industries:
HVAC & Sheet Metal Fabrication:
Fastening ductwork, casing panels, and architectural bracketry securely without pre-tapping.
Electrical Enclosures & Switchgear:
Assembling control boxes, chassis frames, and industrial cabinetry panels where vibration resistance is paramount.
Automotive Interior & Sub-Assembly:
Joining plastic-to-metal dashboards, door liners, and light-gauge structural trim brackets.
Home Appliance Manufacturing:
High-speed automated assembly lines for consumer electronics and computing hardware.
Manufacturing Process
We maintain stringent control over our automated, high-output production infrastructure:
Material Inspection & Drawing
01
Precision Cold Heading
02
Thread Rolling & Slotting
03
Controlled Heat Treatment
04
Surface Electroplating/Coating
05
Packaging & Delivery
Our logistical packaging is designed to safeguard product integrity from our warehouse floors to international ports:
Industrial Bulk Solutions:
Standard 25kg double-walled corrugated cartons stacked securely on heavy-duty, heat-treated ISPM-15 compliant pallets, completely protected by multi-layer stretch wrapping.
Custom Packaging:
Tailored inner cartons, branded labels, and barcode placement for major global wholesalers and hardware retail brands.
Expert Freight Consolidation:
Strategically loaded containers to optimize volumetric space, ensuring goods arrive undamaged and fully stable.
Lead Time
| Quantity (pieces) | 1 - 5000 | 5001 - 20000 | 20001 - 50000 | > 50000 |
| Lead time (days) | 12 | 18 | 25 | To be negotiated |
Certifications
Our manufacturing standards meet the rigorous entry criteria of the global supply chain:
ISO 9001:2015 Quality Management Systems certification.
CE Compliance verification for relevant building and structural application matrices.
RoHS & REACH Compliant finishes, accommodating strict European environmental safety standards.
Small box packing/ Bulk packing/ according to the customer's requirement
FAQ
As one of the most professional self tapping screw manufacturers and suppliers in China, we have world-leading production equipment and strong manufacturing capabilities. Please feel free to wholesale bulk high quality self tapping screw in stock here and get pricelist from our factory. Customized orders are welcome.
