Screw

Grade 4.8/8.8/12.9 Carbon Steel Self Tapping Screws – Premium Zinc Coated Fasteners for Industrial Applications

Premium Carbon Steel Self Tapping Screws for Heavy-Duty Fastening

Our Grade 4.8/8.8/12.9 carbon steel self-tapping screws represent the gold standard in industrial fastening solutions. Engineered specifically for commercial and industrial applications, these high-performance self-tapping screws deliver unmatched reliability across three hardness grades with multiple zinc coating options (blue, yellow, white). Designed exclusively for bulk procurement by manufacturers and contractors, these industrial-grade self-tapping screws offer superior corrosion resistance and tensile strength for the most demanding environments.

Technical Specifications of Our Carbon Steel Self-Tapping Screws

Superior Material Composition

• Premium carbon steel self-tapping screws with 0.18%-0.55% carbon content

• Micro-alloy enhanced for maximum durability

• Three hardness options for different applications:

  • Grade 4.8 self-tapping screws (420 MPa) – General industrial use

  • Grade 8.8 self-tapping screws (830 MPa) – Structural applications

  • Grade 12.9 self-tapping screws (1220 MPa) – Critical high-stress uses

Advanced Surface Treatments

1. Blue zinc self-tapping screws (5-8μm)

   • Basic corrosion protection (72-120 hrs salt spray)

   • Cost-effective indoor solution

2. Yellow zinc self-tapping screws (8-12μm)

   • Enhanced protection (120-240 hrs salt spray)

   • Chromate passivation layer

3. White zinc self-tapping screws (12-15μm)

   • Maximum protection (240-500 hrs salt spray)

   • Multi-layer coating system

Industrial Sizes & Bulk Options for Self-Tapping Screws

Available Configurations

• Diameters: #6 to #14 (0.138″ to 0.250″)

• Lengths: 1/4″ to 3″ (standard), custom lengths available

• Thread types: Type A (coarse), Type B (fine), Type BF

Bulk Packaging Solutions

• 1,000pc boxes of carbon steel self-tapping screws

• 5,000pc cases for high-volume users

• Palletized shipments (10,000+ pc)

Key Benefits of Our Self Tapping Screws

✔ Labor-saving design – Self-tapping point eliminates pre-drilling
✔ Superior corrosion resistance – Multiple coating options
✔ High torque performance – Optimized for power tools
✔ Bulk purchasing advantages – Volume discounts available
✔ Certified quality – ISO 898-1, ASTM F1941 compliant

Industrial Applications for Carbon Steel Self Tapping Screws

• Metal fabrication: HVAC systems, electrical enclosures

• Construction: Steel framing, roofing applications

• Transportation: Vehicle assembly, trailer manufacturing

• Heavy equipment: Machinery components, conveyors

Why Choose Our Self Tapping Screws?

1. 30+ years manufacturing expertise in industrial self tapping screws

2. Batch-to-batch consistency guaranteed

3. Dedicated technical support team

4. Reliable bulk supply chain for carbon steel fasteners

5. Custom solutions available for special requirements

Request a Quote for Bulk Self Tapping Screws

Contact our industrial sales team for:

• Volume pricing on carbon steel self tapping screws

• Technical specifications

• Sample evaluations

• Custom manufacturing inquiries

Quality Certifications for Our Self-Tapping Screws

• ISO 9001:2015 certified manufacturing

• RoHS compliant self-tapping screws

• REACH compliant materials

• Full material traceability documentation

Ordering Information for Industrial Buyers

Standard lead time: 2-3 weeks
Expedited options available
Custom solutions: 4-6 week development

Technical Resources Available

• Complete product datasheets

• Industrial installation guidelines

• CAD models (STEP, IGES, DWG)

• Material certification documents

• Compliance documentation

Industry Recognition

• 2023 Industrial Fastener Excellence Award

• 2022 Manufacturing Innovation Prize

Global Compliance Standards

• Meets North American specifications

• Complies with European norms

• Satisfies international building codes

Total Cost Benefits of Our Self-Tapping Screws

• Reduced installation time

• Lower replacement frequency

• Extended service life

• Minimal maintenance requirements

Request Samples of Our Self-Tapping Screws

Evaluate our quality with:

• Multi-grade sample kits

• Coating comparison sets

• Size assortment packages

• Technical documentation

Conclusion: Your Trusted Self-Tapping Screw Provider

For industrial buyers requiring reliable, high-performance carbon steel self tapping screws, our products deliver exceptional results. Backed by decades of experience and rigorous quality standards, we’re committed to being your trusted fastener partner. Contact our sales team today to discuss your specific requirements for Grade 4.8/8.8/12.9 carbon steel self tapping screws.