USD 0.00 ~ USD 0.00/carton
50/ carton (Min. Order)
Engineered to seal critical fluid pathways under extreme pressure
Our Hex Socket Oil Pipe Plug Screws combine ISO-compliant machining with advanced sealing geometry to prevent leaks in hydraulic, lubrication, and compressed air systems. Featuring a recessed hex drive and precision threads, they withstand 10,000+ PSI while resisting vibration-induced loosening.
Mission-Critical Sealing Performance
Designed for reliability in demanding industrial environments, these CNC-machined pipe plugs create permanent seals in ports, manifolds, and fluid reservoirs. The deep hex socket (ISO 4762) accommodates standard Allen keys for secure installation, while specialized thread forms eliminate the need for separate sealing washers.
Technical Advantages
🔧 Superior Sealing
30° tapered threads (ISO 7-1) create metal-to-metal seals
Anti-vibration grooves prevent spontaneous loosening
Surface finish ≤Ra 1.6μm minimizes fluid entrapment
🛡️ Extreme Environment Durability
Zinc-nickel plating (≥20μm) withstands 1,500hr salt spray
Operational range: -54°C to 232°C (-65°F to 450°F)
Compatible with petroleum, synthetic oils & coolants
⚙️ Installation Precision
Recessed hex drive prevents tool slippage at 300+ ft-lb torque
Flush-mount design eliminates protrusion hazards
Magnetic variants for debris capture (optional)
Technical Specifications
| Parameter | Specification |
|---|---|
| Drive Type | Hex Socket (ISO 4762) |
| Thread Standards | NPT • BSPP • BSPT • Metric |
| Pressure Rating | 10,000 PSI (690 bar) |
| Materials | Alloy Steel 4140 • 316L Stainless • Brass |
| Coatings | Zn-Ni • Black Oxide • PTFE-impregnated |
| Hex Sizes | 3mm to 19mm (1/8" to 3/4") |
| Thread Sizes | 1/8" to 2" NPT • M6 to M48 |
| Compliance | DIN 906 • SAE J514 • ISO 1179 |
Performance Comparison
| Feature | Standard Plug | Our Plug |
|---|---|---|
| Max Pressure | 5,000 PSI | 10,000 PSI |
| Vibration Loosening | 35% clamp loss @ 15G | <5% clamp loss @ 15G |
| Corrosion Resistance | 500hr salt spray | 1,500hr salt spray |
Critical Applications
Hydraulic Systems: Valve blocks • Pump ports • Cylinder manifolds
Engine Components: Oil galleries • Coolant passages • Filter housings
Industrial Machinery: Compressor heads • Gearbox drains • CNC lubrication lines
Transportation: Heavy truck axles • Marine hydraulic rams • Aircraft landing gear
Installation Protocol
Clean threads with brake cleaner (ISO 4925)
Apply sealant to male threads (e.g., LOCTITE 567)
Torque to 75% spec, then final torque in 3 stages
Caution: Over-torquing cracks aluminum housings!
Thread Locking : Pre-applied anaerobic adhesive (MIL-S-46163)
Identification : Laser-etched size/grade markings
Special Geometries :
Vent slots for pressure equalization
Magnetic cores for ferrous debris capture
Conductive coatings for static dissipation
Industrial: VMI-compatible grids with RFID tags
Maintenance Kits: Color-coded blister packs
Certifications: Material test reports per EN 10204 3.1
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