Fasteners
High-Quality Fasteners for Industrial and Construction Needs
Fasteners are essential components in various industries, providing secure and reliable connections for structures, machinery, and equipment. Our extensive range of fasteners meets international standards and delivers exceptional performance for demanding applications.
Product Specifications
Our fasteners are manufactured using premium materials and precision engineering:
- Materials: Stainless steel, carbon steel, alloy steel, brass, and titanium
- Standards: ISO, DIN, ANSI, ASTM, and JIS compliant
- Surface Treatments: Zinc plating, hot-dip galvanizing, black oxide, and passivation
- Temperature Resistance: -40°F to 500°F (-40°C to 260°C) depending on material
- Corrosion Resistance: Salt spray tested up to 1000 hours
Fasteners Size Chart
| Type | Size Range | Thread Pitch | Tensile Strength (MPa) |
|---|---|---|---|
| Hex Bolts | M3-M48 | 0.5-5.5mm | 400-1200 |
| Socket Head Cap Screws | M2-M24 | 0.4-3.0mm | 800-1400 |
| Nuts | M2-M48 | 0.4-5.5mm | 600-1000 |
| Washers | M2-M48 | N/A | 300-800 |
Fasteners FAQ
Q: What are the most corrosion-resistant fasteners for outdoor applications?
A: For maximum corrosion resistance in outdoor environments, we recommend stainless steel fasteners (Grade 304 or 316) or hot-dip galvanized carbon steel fasteners. Grade 316 stainless steel offers superior resistance to saltwater and marine conditions.
Q: How do I select the right fastener for high-temperature applications?
A: For high-temperature environments (above 500°F/260°C), alloy steel fasteners with heat-resistant coatings or titanium fasteners are ideal choices. Consider factors like thermal expansion coefficients and material strength at elevated temperatures when making your selection.
Q: What's the difference between machine screws and bolts?
A: The main differences lie in their design and application. Machine screws are typically smaller, have uniform diameter along their length, and are designed to be screwed into tapped holes or used with nuts. Bolts usually have a partially threaded shank and are designed to be used with nuts to clamp materials together.
Specialty Fasteners
We offer specialized fasteners for unique applications:
- Security Fasteners: Tamper-resistant designs with unique drive systems
- High-Strength Fasteners: Grade 8 and 12.9 fasteners for structural applications
- Composite Fasteners: Non-conductive, non-magnetic solutions
- Micro Fasteners: Precision fasteners for electronics and medical devices
Installation Guidelines
Proper installation ensures optimal performance of your fasteners:
| Fastener Type | Recommended Torque (Nm) | Lubrication | Retightening Interval |
|---|---|---|---|
| M6 Hex Bolt | 10-12 | Light oil | 1000 hours |
| M12 Structural Bolt | 95-115 | Anti-seize compound | 500 hours |
| 1/4-20 UNC Screw | 5-7 | Dry | 2000 hours |
More Fasteners FAQ
Q: How often should I inspect and retighten fasteners?
A: Inspection frequency depends on the application. For critical connections subjected to vibration or dynamic loads, inspect every 3-6 months. For static applications, annual inspections are typically sufficient. Always follow manufacturer recommendations for your specific fasteners and application.
Q: What causes fastener loosening, and how can it be prevented?
A: Common causes include vibration, thermal cycling, and improper installation. Prevention methods include using lock washers, thread-locking compounds, proper torque application, and in critical cases, double-nutting or safety wiring.
Q: Can I mix different grades of fasteners in an assembly?
A: Mixing fastener grades is generally not recommended as it can lead to uneven load distribution and potential failure. Always use fasteners of the same grade and material in a single assembly unless specifically designed otherwise by an engineer.
Quality Assurance
Our fasteners undergo rigorous quality control:
- 100% dimensional inspection
- Material certification (mill test reports)
- Hardness testing
- Salt spray testing for corrosion resistance
- Batch traceability
Final Fasteners FAQ
Q: What certifications do your fasteners have?
A: Our fasteners carry multiple international certifications including ISO 9001:2015 for quality management, ISO/TS 16949 for automotive applications, and specific product certifications such as CE marking for European markets and ASTM standards for North American applications.
Q: Do you provide custom fastener solutions?
A> Yes, we offer complete custom fastener engineering services including design, prototyping, material selection, and production. Our engineering team can develop solutions for unique applications with specialized requirements.
Q: What's your lead time for standard fastener orders?
A: Standard items are typically shipped within 2-3 business days. Large quantity orders or special finishes may require 1-2 weeks. We maintain substantial inventory of common fasteners to ensure quick delivery for our customers.
Ordering Information
Contact our sales team for pricing, availability, and technical support:
- Minimum order quantity: 100 pieces (standard items)
- Bulk discounts available for quantities over 10,000 units
- Custom packaging options available
- Global shipping via air, sea, and ground freight