Plug screw
High-Quality Plug Screws for Industrial and Construction Applications
Plug screws are essential fastening components used across various industries. Our premium plug screws offer superior durability and performance for demanding applications.
Product Specifications
- Material: High-grade stainless steel (304/316)
- Finish: Plain, zinc-plated, or black oxide coated
- Thread Type: Metric coarse and fine threads available
- Head Styles: Hex, socket, flat, or countersunk
- Temperature Resistance: -50°C to +300°C
- Corrosion Resistance: Excellent for both indoor and outdoor use
Technical Data Table
| Size | Thread Pitch | Head Diameter | Length Options | Tensile Strength |
|---|---|---|---|---|
| M4 | 0.7mm | 7mm | 6-40mm | 800 MPa |
| M6 | 1.0mm | 10mm | 8-50mm | 800 MPa |
| M8 | 1.25mm | 13mm | 12-80mm | 800 MPa |
| M10 | 1.5mm | 16mm | 16-100mm | 800 MPa |
Plug Screw Features
- Precision machined threads for perfect fit
- Uniform hardness throughout the material
- Clean, burr-free edges
- Compatible with standard wrenches and drivers
- Available in bulk packaging or custom quantities
Plug Screw Applications
Our plug screws are ideal for:
- Machinery assembly and maintenance
- Construction and building frameworks
- Automotive components
- Electronics enclosures
- Piping systems
- Structural steel connections
Plug Screw FAQ
Q: What is the difference between a plug screw and a regular screw?
A: Plug screws are specifically designed for sealing threaded holes or creating flush surfaces. They typically have shorter thread lengths and are made to sit completely within the hole they're securing, unlike standard screws that protrude. The head design is often more streamlined to create flat surfaces when installed.
Q: How do I choose the right plug screw for my application?
A: Consider these factors: 1) Material compatibility with your base material (steel, aluminum, etc.), 2) Required strength and load capacity, 3) Environmental conditions (moisture, temperature), 4) Head style needed (countersunk for flush finish, hex for torque applications), and 5) Thread type matching your existing holes. When in doubt, consult with our technical team for specific recommendations.
Q: Can plug screws be reused after removal?
A: While plug screws can sometimes be reused, we recommend using new screws for critical applications. Each installation slightly wears the threads, potentially compromising the holding power. For non-critical applications where exact torque isn't vital, inspection is required - check for thread damage, corrosion, or deformation before reuse. Stainless steel plug screws generally withstand reuse better than other materials.
Installation Tips
- Always clean the threaded hole before installation
- Use proper torque specifications to prevent stripping
- Apply thread locker when vibration resistance is needed
- For aluminum applications, use anti-seize compound
- Inspect plug screws periodically in critical applications
Quality Assurance
Our plug screws undergo rigorous quality testing:
- Dimensional accuracy verification
- Material composition analysis
- Torque and tensile strength testing
- Surface finish inspection
- Corrosion resistance evaluation
Packaging Options
| Package Type | Quantity | Labeling | Custom Options |
|---|---|---|---|
| Bulk Box | 100-10,000 pieces | Standard | Available |
| Retail Pack | 10-100 pieces | Custom | Available |
| Reel Pack | 500-5,000 pieces | Standard | Not available |
| Custom Tray | 50-1,000 pieces | Custom | Available |