Expansion Bolts
High-Performance Expansion Bolts for Concrete and Masonry Applications
Professional expansion bolt supplier from China with competitive factory pricing
Product Overview
WT Fasteners specializes in manufacturing high-quality expansion bolts designed for secure fastening in concrete, brick, and masonry substrates. Our expansion bolts provide reliable holding power and are manufactured to meet international standards including ISO, DIN, ANSI, and GB specifications.
🔧 Key Features
- Superior holding power in concrete and masonry
- Corrosion-resistant coating options
- Easy installation with standard tools
- Wide range of sizes and lengths
- High-grade steel construction
- Consistent expansion mechanism
- Vibration resistant design
🏗?Applications
- Structural steel connections
- HVAC system mounting
- Electrical equipment installation
- Concrete construction projects
- Building facade systems
- Industrial machinery anchoring
- Bridge and infrastructure projects
📋 Standards Compliance
- ISO Standards: ISO 898-1, ISO 4762
- DIN Standards: DIN 6912, DIN 934
- ANSI Standards: ANSI B18.2.1
- GB Standards: GB/T 70, GB/T 6170
- ASTM: ASTM A307, ASTM F1554
- CE Marking: Available for European markets
🔩 Material Options
- Carbon Steel: Grade 4.8, 8.8, 10.9
- Stainless Steel: 304, 316, A2, A4
- Galvanized: Hot-dip galvanized coating
- Zinc Plated: Standard zinc coating
- Dacromet Coating: Enhanced corrosion protection
- Custom Materials: Available upon request
Technical Specifications
| Diameter (mm) | Length Range (mm) | Thread Pitch | Min. Tensile Strength (kN) | Min. Shear Strength (kN) | Drill Hole Diameter (mm) |
|---|---|---|---|---|---|
| M6 | 40-100 | 1.0 | 6.0 | 4.5 | 6 |
| M8 | 50-120 | 1.25 | 12.0 | 8.0 | 8 |
| M10 | 60-150 | 1.5 | 20.0 | 12.0 | 10 |
| M12 | 70-180 | 1.75 | 30.0 | 18.0 | 12 |
| M16 | 90-220 | 2.0 | 50.0 | 30.0 | 16 |
| M20 | 110-280 | 2.5 | 80.0 | 48.0 | 20 |
🔨 Installation Instructions
- Drill Hole: Use appropriate drill bit size as specified in the table above
- Clean Hole: Remove all debris and dust from the drilled hole
- Insert Bolt: Place expansion bolt through fixture and into hole
- Tighten: Apply specified torque to expand the anchor mechanism
- Verify: Check that the bolt is properly seated and secure
?Quality Assurance
- 100% dimensional inspection
- Tensile and shear strength testing
- Corrosion resistance testing
- Material composition verification
- Surface finish quality control
- Packaging and labeling inspection
- ISO 9001:2015 certified manufacturing
Why Choose WT Expansion Bolts?
🏭 Direct Factory Supply
Competitive pricing with no middleman markup. Direct from our manufacturing facility in China.
🌍 Global Export Experience
Extensive experience serving Southeast Asia and international markets with reliable shipping.
📞 Professional Support
Technical assistance and custom solutions available. Expert guidance for your specific applications.
Get Your Expansion Bolts Quote Today
Contact WT Fasteners for competitive pricing and professional expansion bolt solutions
