Self-Tapping Screw
Stronger threads. Superior corrosion resistance.
Self-tapping screws form their own threads during installation, ensuring secure fastening in metal sheets, plastics, and thin wood—without the need for pre-drilling.
product list
Fast Bite. Firm Hold. Zero Hassle.
Material & Surface Treatment
Commonly used and accept your customization.
size specifications
| Category | Specification Range | Notes |
|---|---|---|
| Diameter (lmperial) | #4,#6,#8,#10,#12,#14 | Common for sheet metal & general use |
| Diameter (Metric) | M3, M3.5, M4, M4.8, M5.5, M6, M8 | Covers light-duty to heavy-duty connections |
| Length Range | 6 mm-150 mm/1/4"-6" | Custom lengths available |
| Thread Types | Fine Thread / Coarse Thread /Twinfast | Chosen based on material hardness |
| Head Types | Pan, Truss, Hex Washer. Countersunk, Oval | Multiple options for industry applications |
| Drive Types | Phillips, Pozidriv, Torx, Hex | Supports various tooling requirements |
| Point Types | Sharp Point (Type AB/AB) | For metal, plastic, softwood |
| Optional Standards | DIN/ISO/ANSI/ JIS | Supports global markets |
Selection Guide
1. Choose Thread Type Based on Material
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Metal Sheets (Steel / Aluminum)
Use Type A / AB / B threads for better tapping performance and stable holding strength. -
Plastics
Choose coarse thread to avoid material cracking. -
Wood / Plywood
Use Twinfast or coarse thread for faster driving and a stronger grip.
2. Choose Material Based on Environment
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Outdoor / Coastal / High-humidity environments
✔ Stainless Steel 304 / 316
316 provides superior corrosion resistance. -
Indoor and general applications
✔ Carbon Steel Zinc Plated (cost-effective) -
High-strength mechanical connections
✔ Alloy Steel / Hardened Steel
3. Choose Head Type Based on Installation Surface
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Pan Head: Universal, suitable for metal and plastic
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Truss Head: Larger bearing surface, ideal for softer materials
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Countersunk / Flat Head: For flush mounting
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Hex Washer Head: Higher torque, suitable for equipment and sheet metal
Designed for Harsh Environments. Trusted Worldwide.
Reliable self-tapping screws for solar, roofing, and industrial projects.
Your Trusted Fastening Solution!
Product advantages
What you care about, what we produce
Sharp Thread Form
Precise, uniform threads for smooth cutting action and strong fastening grip.Hardened Point
Enables efficient self-tapping into metals, plastics, and thin steel plates without pre-tapping.Standard Drive Types
Offered in Phillips, slotted, and hex drives for fast, stable, and labor-saving installation.
fastener series
Fasteners are known as the rice of industry, learn how our fasteners feed your machines.
high quality stainless steel fastener
fastener series
You can find anything you want here.
Why Choose Bilateral for Self-Tapping Screws
quality assurance
ISO 9001:2015 & CE certified. Inspection and material reports for every batch.Price advantage
Factory direct, bulk purchases enjoy discountsLow MOQ
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Standard Products: Flexible MOQs with mixed-size ordering available.
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Custom Products: MOQs will be confirmed based on size and tooling requirements.
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delivery date
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Standard Products: 15–30 days
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Custom Products: Approx. 45 days (to be confirmed)
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Common Questions
Frequently asked questions
What material are your self-tapping screws made of？
We mainly use high-grade SUS304/SUS316, and can offer SUSU410 or other materials as required.
Can I customize head types or drive types here?
Absolutely. We offer:
Head types: Pan, Truss, Flat, Hex Washer, Oval, etc.
Drive types: Phillips, Slotted, Torx, Hex
Custom designs and OEM specifications are available.
What is your MOQ?
Standard products: small MOQ supported, mixed size orders accepted.
Custom products: MOQ depends on size and tooling requirements.
Do you provide samples?
Yes. Samples are available for testing. Standard samples are usually free, only freight cost is required.
Get your quote
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Confirm Specs
Review materials, size, and design. We’ll finalize every detail before production begins.
Production
Your order is made with care, quality checked at every step, and built to your specs.
Delivery
We ship globally with reliable logistics partners. You get your order on time, every time.
Worry-free purchasing
Only four simple steps. Fast response. Reliable delivery. Get the purchae without the headaches.
