
Self-Tapping Screw
Self-tapping screws are designed to create their own threads during installation and are commonly used for fastening metal sheets, plastics, and thin wood without pre-drilling.

product list
Fast Bite. Firm Hold. Zero Hassle.
DIN 5xxx, DIN 6xxx & DIN 9xxx Series
DIN 75xx Series
DIN 79xx Series
QIB/IND Series
Material & Surface Treatment
Commonly used and accept your customization.
size specifications

how to choose?
1. Choose Thread Type Based on Material
-
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
-
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
-
Pan Head: Universal, suitable for metal and plastic
-
Truss Head: Larger bearing surface, ideal for softer materials
-
Countersunk / Flat Head: For flush mounting
-
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.
- machine screw
- nut
- washer
- bolt
- solar hanger bolt
high quality stainless steel fastener

fastener series
The Benefits of Ordering Self-tapping Screw from Bilateral
quality assurance
Lorem ipsum dolor sit amet, consectetur adipiscing viverra ornare, eros dolor nulla.Price advantage
Factory direct, bulk purchases enjoy discountsLow MOQ
Standard products: small MOQ supported, mixed size orders accepted.
Custom products: MOQ depends on size and tooling requirements.delivery date
Standard products: Orders will be processed 15-30 days after placement Custom products: 45 days after placement,specific times will need to be discussed.
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 you customize head types or drive types?
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.
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Production
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Delivery
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