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Precision Fasteners for Industrial Excellence

Trusted manufacturer of security screws, wood screws, self-tapping screws, bolts, nuts, anchors, and custom stamping parts. ISO 9001 certified with global distribution across North America, Europe, and Southeast Asia.

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100%
In-House Production
25–35 Days
Custom Order Lead Time
<7 Days
Stock Shipment

About ScrewsMFG

GreenLink, operating as ScrewsMFG, is a leading manufacturer of industrial fasteners based in Shenzhen, China. With a fully integrated production facility, we produce a wide range of high-quality screws, bolts, nuts, anchors, and custom stamping parts to meet international standards including ANSI, BS, DIN, and ISO.

Our product range includes security screws, wood screws, self-tapping screws, machine screws, lag screws, anchor bolts, and specialized bracket systems for facade cladding. We serve industries such as automotive manufacturing, electromechanical equipment, and construction materials.

Why Choose Us?

  • 100% in-house production control
  • Imported steel wire from Taiwan, China, and Korea
  • ISO 9001 Quality Management Certified
  • Fast turnaround: 7 days for stock items
  • Custom non-standard parts available
Socket Button Seal Screw Phillips CSK Drilling Screw Stud Bolt Long Sleeve Anchor

Our Product Range

High-precision fasteners engineered for durability, reliability, and compliance with international standards. All products available in stainless steel and carbon steel variants.

Socket Button Seal Screw

Socket Button Seal Screw

Security screw with tamper-resistant design, ideal for public infrastructure and electronic enclosures.

Thread: M3–M8 | Length: 6–50mm | Material: Stainless Steel
Phillips CSK Drilling Screw

Phillips CSK Drilling Screw

Self-drilling screw with countersunk head for clean finish in metal and wood applications.

Diameter: 3.5–6.3mm | Length: 13–75mm | Coating: Zinc
Stud Bolt

Stud Bolt

Double-end threaded rod for flange connections and heavy-duty industrial assembly.

Standard: DIN 975 | Material: 35CrMo | Length: Custom
Long Sleeve Anchor

Long Sleeve Anchor

Expansion anchor for concrete and masonry, suitable for facade and structural applications.

Diameter: M8–M16 | Length: 60–200mm | Load Rating: High
Phillips Pan Head Screw

Phillips Pan Head Screw

General-purpose self-tapping screw with wide bearing surface and Phillips drive.

Diameter: 2.5–6.0mm | Length: 10–60mm | Finish: Black Oxide
Self-Drilling Screw

Bimetal Self-Drilling Screw

Hardened tip for drilling through steel up to 3mm without pre-punching.

Head: Hex Washer | Material: Bimetal | Standards: ISO 15480
Stainless Steel U Bolt

Stainless Steel U Bolt

Corrosion-resistant U-shaped bolt for pipe clamping and structural support.

Diameter: M6–M20 | Material: SS304/SS316 | Custom Bending
Double End Stud Bolt

Double End Stud Bolt

Fully threaded stud with chamfered ends for high-tension flange joints.

Standard: ASME B16.5 | Material: Alloy Steel | Coating: Dacromet
Torx CSK Wood Screw

Torx CSK Wood Screw

Torx-drive countersunk wood screw for furniture and cabinetry with anti-camout feature.

Drive: TX15–TX30 | Length: 25–100mm | Finish: Phosphate
Cap Nut

Stainless Steel Cap Nut

Domed cap nut for aesthetic finish and protection of bolt threads from corrosion.

Standard: DIN 1587 | Material: A2/A4 Stainless | Size: M4–M24
Spring Lock Nut

Single Coil Spring Lock Nut

Prevailing torque nut with deformed thread for vibration resistance.

Standard: DIN 980 | Material: Carbon Steel | Grade: 8
Flat Head Bolt

Stainless Steel Flat Head Bolt

Countersunk head bolt for flush mounting in precision assemblies.

Drive: Hex Socket | Angle: 82° | Material: SS304
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Why ScrewsMFG Stands Out

Full In-House Production

From raw material to finished product, every phase is controlled internally for quality assurance and fast turnaround.

ISO 9001 Certified

Our quality management system meets international standards, ensuring consistent product reliability.

Global Distribution

We export to North America, Europe, and Southeast Asia with reliable logistics and documentation.

Fast Turnaround

Stock items ship within 7 days. Custom orders (up to 23 tons) delivered in 25–35 days.

Custom & Non-Standard Parts

We specialize in producing custom fasteners to your exact specifications and drawings.

Free Samples Available

Request free samples for evaluation when available in stock—no obligation.

Trusted by Industry Leaders Worldwide

15+
Years Experience
50+
Global Clients
10M+
Units Shipped
99.7%
Quality Pass Rate

Frequently Asked Questions

What materials do you use for your fasteners?

We use high-quality carbon steel, alloy steel, and stainless steel (grades 304, 316). Raw materials are imported from trusted suppliers in Taiwan, China, and Korea.

Can you produce custom or non-standard fasteners?

Yes, we specialize in custom manufacturing. Provide your drawings or samples, and we’ll produce to your exact specifications with full quality checks.

What is your production lead time?

For stock items: within 7 days after payment. For custom orders under 23 tons: 25–35 days after confirmation of all details.

Do you offer free samples?

Yes, free samples are available if in stock. Please contact us with your request and shipping address.

Which international standards do you comply with?

Our products meet ANSI, BS, DIN, and ISO standards. We are also ISO 9001 certified for quality management.

Get in Touch

For quotations, samples, or technical inquiries, our sales team responds within 24 hours.

Sales Inquiry

Mr. Galen – Sales Manager

Email: [email protected]

Phone: +86 18188006891

Shenzhen Office: Chuangye Garden 76, MinBao Rd., Longhua District, Shenzhen 518131, China

Marketing & Partnerships

Ms. Jessie – Marketing Manager

Email: [email protected]

Hong Kong Office: 16/F, Kowloon Building, 555 Nathan Road, Mongkok, Kowloon, HK

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