Custom Stainless Steel Plastic Thread Self-Tapping Screw
Custom stainless steel plastic thread self-tapping screw is a precision fastener designed for direct assembly into plastic components, molded housings, and engineering plastic bosses. The custom stainless steel plastic thread self-tapping screw forms secure threads during installation, reducing the need for pre-tapping while improving assembly efficiency and holding strength.
Manufactured from corrosion-resistant stainless steel, the custom stainless steel plastic thread self-tapping screw is widely used in electronics, automotive interiors, medical devices, appliances, communication equipment, industrial equipment, and OEM plastic assemblies.

Product Overview
The custom stainless steel plastic thread self-tapping screw is engineered for thermoplastics such as ABS, PC, PP, PA, POM, PVC, and reinforced nylon. Its plastic-specific thread profile reduces radial stress, helping prevent cracking around plastic bosses.
This custom stainless steel plastic thread self-tapping screw supports customized head styles, drive types, thread angles, tip designs, and dimensions. As a reliable industrial fastener, it is ideal for OEM fasteners requiring corrosion resistance, stable torque, and repeatable installation.
Product Specifications
| Item | Description |
|---|---|
| Product Name | Custom Stainless Steel Plastic Thread Self-Tapping Screw |
| Material | Stainless Steel 304 / 304L / 316 / 316L |
| Thread Type | Plastic Thread / Self-Tapping Thread |
| Head Type | Pan, Countersunk, Truss, Wafer, Hex Washer, Custom |
| Drive Type | Phillips, Torx, Pozidriv, Slotted, Hex Socket |
| Diameter Range | ST2.0–ST8.0 / Custom |
| Length Range | 5mm–100mm |
| Surface Finish | Natural / Passivated / Polished |
| Strength Grade | A2-50 / A2-70 / A4-70 / A4-80 |
| Thread Direction | Right Hand |
| Packaging | Bulk, small box, tray, OEM packaging |
| Customization | Size, head, drive, thread, tip, marking, packaging |
Technical Parameters
| Parameter | Value |
|---|---|
| Tensile Strength | 500–800 MPa |
| Yield Strength | 210–600 MPa |
| Hardness | HV 150–250 |
| Density | 7.93 g/cm³ |
| Corrosion Resistance | Excellent |
| Operating Temperature | -50°C to 400°C |
| Thread Tolerance | Custom plastic thread standard |
| Manufacturing Standard | DIN / ISO / Customer Drawing |
Materials and Manufacturing Process
Production starts with selected stainless steel wire rod. After raw material inspection, cold forging forms the screw head and shank. Then, CNC machining is used for special head shapes or non-standard features.
Next, precision thread rolling creates the plastic thread profile. The tip is formed to match the required plastic boss design. Surface passivation improves corrosion resistance, while cleaning removes oil and residues. Finally, inspection checks dimensions, thread shape, torque, pull-out performance, surface quality, and packaging.
Each custom stainless steel plastic thread self-tapping screw is manufactured for stable installation and long service life.
Applications of the Product
This screw is widely used in automotive plastic parts, electronic housings, appliance shells, medical equipment, telecom devices, plastic enclosures, industrial covers, injection molded parts, renewable energy components, and manufacturing systems.
It performs well where plastic materials need secure fastening without metal inserts.
Why Choose This Product
This product provides premium stainless steel material, high precision manufacturing, strong corrosion resistance, stable mechanical performance, long service life, bulk supply capability, OEM/ODM support, fast delivery, and export experience.
The optimized plastic thread improves pull-out strength and reduces boss cracking during assembly.
Why Choose Flybear
Flybear provides custom fastener manufacturing for plastic, metal, and composite assemblies.
Flybear offers manufacturing capability, inventory strength, custom production, engineering support, global supply ability, and technical consultation. We support drawings, samples, special thread designs, and OEM packaging requirements.
Quality Inspection and Control
Quality control includes chemical composition analysis, tensile testing, hardness testing, salt spray test, thread gauge inspection, dimensional inspection, surface inspection, torque testing, pull-out testing in plastic materials, and packaging inspection.
Production follows ISO quality system compliance for consistent industrial performance.
Selection Guide
When selecting custom stainless steel plastic thread self-tapping screws, consider plastic type, boss hole diameter, screw diameter, length, thread profile, installation torque, pull-out strength, indoor or outdoor use, and corrosion level.
For high-strength plastics, confirm thread angle and pilot hole design before mass production.
FAQ
What is a plastic thread self-tapping screw?
It is a screw that forms mating threads directly in plastic during installation.
Which plastics are suitable?
ABS, PC, PP, PA, POM, PVC, and reinforced nylon are commonly used.
Is stainless steel rust resistant?
Yes. Stainless steel offers strong corrosion resistance for humid and outdoor applications.
Can custom sizes be produced?
Yes. Custom head, drive, thread, tip, size, and packaging are available.
How to request quotation?
Send drawings, plastic material, size, quantity, surface finish, and application details.
The custom stainless steel plastic thread self-tapping screw provides corrosion resistance, secure thread forming, and reliable fastening for plastic assemblies. For quotation, customization, and technical support, please Contact Us.
We always adhere to the philosophy of quality first and customer first, providing customers with high-quality fastener products and one-stop fastener solutions.




