Galvanized Hollow Lead Screw High Strength Hollow Threaded Rod Grade 4.8
Price:
Negotiable
MOQ:
1
Delivery Time:
5-8 work days
Brand:
Kesle
Product Description
Galvanized Hollow Lead Screw High Strength Hollow Threaded Rod Grade 4.8
Product Overview
Chamfered Threaded Tube High Strength Easy-Install Industrial Pipeline Connector designed for reliable performance in demanding industrial applications.
Basic Parameters and Structural Design
Dimensional Specifications:
- Thread Type: Commonly adopts NPT (60° tapered thread) or BSPT (55° sealed tapered thread), with nominal diameters ranging from 1/8" to 2"
- Chamfer Design: The tube end features a 45° chamfer (edge-cut) with a width of 1-3mm, facilitating alignment during installation and reducing burrs
- Material: High-strength carbon steel (e.g., Q235) or stainless steel (304/316), surface-treated with galvanization or nickel plating for corrosion resistance
Structural Features:
- Threaded Connection: Integral external threads, precision-machined to ensure tight fit with mating components (e.g., couplings, flanges)
- Separable Design: Some models allow disassembling the tube body and threaded sleeve for flexible installation in confined spaces
Technical Performance
Load Capacity:
- Working Pressure: Up to 1.6-2.5MPa (NPT threads) or 2.0-4.0MPa (BSPT threads), depending on material thickness
- Temperature Range: -20°C to +120°C (standard), with high-temperature variants available for up to +200°C
Surface Treatment:
- Zinc Plating: Thickness ≥5μm, salt spray resistance ≥24 hours
- Anodizing (aluminum alloy): Hardness ≥12HV, suitable for outdoor or corrosive environments
Application Fields
- Industrial Machinery: Pipe connections in hydraulic systems, pneumatic equipment, and mechanical transmission devices
- Lighting Fixtures: Structural connectors in LED track lights and ceiling lamps, combining heat dissipation with mechanical fixation
- Automotive & HVAC: Engine oil pipelines, refrigerant lines, requiring vibration resistance and leak-proof performance
Design Advantages
Installation Efficiency:
- The chamfered edge simplifies insertion into fittings, reducing alignment time by 30% compared to non-chamfered tubes
- Compatible with standard wrenches or automated assembly tools for quick installation
Reliability:
- Precision threading ensures minimal leakage (<0.01MPa pressure drop) when paired with sealing tapes or gaskets
- Heat-treated materials enhance fatigue resistance, extending service life by 20% under cyclic loading
Maintenance & Installation Guidelines
Inspection:
- Regularly check thread integrity for corrosion or deformation, especially in high-moisture environments
- Measure chamfer wear with a caliper; replace if deviation exceeds ±0.5mm
Assembly:
- Apply PTFE tape or thread sealant to tapered threads for leak-proof connections
- Use torque wrenches to avoid over-tightening (recommended torque: 8-15N*m for 1/2" threads)
Storage:
- Store in dry conditions, sealed with anti-rust paper or plastic caps to prevent oxidation
Typical Application Cases
- LED Track Lighting: The edge-cut tooth tube (M10x1 thread) securely connects lamp heads to tracks while dissipating heat, supporting load-bearing up to 5kg
- Hydraulic Systems: A 3/4" NPT tooth tube withstands 1.8MPa pressure in excavator boom joints, ensuring stable operation under impact load
Technical Parameters
| Item | Typical Value |
|---|---|
| Thread Accuracy | ISO 7-1 Class B (tapered) |
| Chamfer Angle | 45°±2° |
| Burst Pressure | 3× working pressure |
| Surface Roughness (Ra) | ≤3.2μm |
| Weight (per 100mm) | 0.3-1.2kg (varies by diameter) |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Dongguan Kesle Electronic Hardware Co., Ltd
Location
Guangdong Dongguan Kesile Electronic & Hardware Products Factory
Contact Person
orlenda li