A193 B7 Alloy Steel PTFE Coated Fine Thread Stud Bolt ASME B16.5M
A193 B7 alloy steel PTFE coated fine thread stud bolt ASME B16.5M is a high-performance fastening component designed for demanding industrial flange and pressure equipment applications. The A193 B7 alloy steel PTFE coated fine thread stud bolt ASME B16.5M is manufactured from ASTM A193 Grade B7 chromium-molybdenum alloy steel and features a PTFE (polytetrafluoroethylene) coating that improves corrosion resistance, reduces friction, and enhances installation performance.
The A193 B7 alloy steel PTFE coated fine thread stud bolt ASME B16.5M is widely used in petrochemical plants, oil and gas systems, chemical equipment, pressure vessels, pipelines, valves, and heavy industrial machinery where strong clamping force and reliable threaded connections are required.

Product Overview
The A193 B7 alloy steel PTFE coated fine thread stud bolt ASME B16.5M is designed for high-strength bolting applications requiring stable performance under pressure and temperature conditions. ASTM A193 B7 alloy steel provides excellent tensile strength and mechanical reliability, while the PTFE coating offers improved surface protection and smoother assembly.
The fine thread design provides more thread engagement compared with coarse threads, making the A193 B7 alloy steel PTFE coated fine thread stud bolt ASME B16.5M suitable for applications requiring precise adjustment, stronger clamping control, and improved resistance to loosening.
This stud bolt is commonly used with heavy hex nuts and washers in flange connections and industrial equipment assemblies.
Product Specifications
| Item | Description |
|---|---|
| Standard | ASTM A193 B7 / ASME B16.5 Application |
| Product Name | PTFE Coated Fine Thread Stud Bolt |
| Material | Chromium-Molybdenum Alloy Steel |
| Material Grade | ASTM A193 B7 |
| Thread Type | Fully Threaded Stud / Double End Stud |
| Thread Standard | ASME B1.1 UNF Fine Thread |
| Thread Direction | Right Hand |
| Diameter Range | According to Customer Requirement |
| Length Range | Customized |
| Surface Finish | PTFE Coated |
| Coating Type | Fluoropolymer Coating |
| Strength Grade | ASTM A193 B7 |
| Packaging | Bundle / Carton / OEM Packaging |
| Customization | Length, thread, coating available |
Technical Parameters
| Parameter | Value |
|---|---|
| Material | ASTM A193 B7 Alloy Steel |
| Chemical Composition | Chromium-Molybdenum Alloy Steel |
| Tensile Strength | According to ASTM A193 B7 Requirement |
| Yield Strength | According to ASTM A193 B7 Requirement |
| Hardness | According to ASTM A193 B7 Specification |
| Temperature Performance | Suitable for Elevated Temperature Service |
| Coating Performance | Low Friction and Corrosion Protection |
| Thread Type | UNF Fine Thread |
| Manufacturing Standard | ASTM A193 / ASME Requirements |
Materials and Manufacturing Process
The A193 B7 alloy steel PTFE coated fine thread stud bolt ASME B16.5M is manufactured through controlled alloy steel processing, precision threading, heat treatment, and coating procedures.
- Raw material selection: ASTM A193 B7 chromium-molybdenum alloy steel
- Material inspection: Chemical composition verification and certification review
- Cutting process: Preparation of stud bolt blanks
- Thread processing: Precision rolling or machining of UNF fine threads
- Heat treatment: Quenching and tempering to achieve required mechanical properties
- Surface preparation: Cleaning before coating application
- PTFE coating: Application of protective fluoropolymer coating
- Inspection: Thread gauge inspection, dimensional measurement, coating verification, and mechanical testing
- Packaging: Protective industrial packaging for transportation
Each A193 B7 alloy steel PTFE coated fine thread stud bolt ASME B16.5M is manufactured under strict quality control to ensure dependable performance.
Applications of the Product
The A193 B7 alloy steel PTFE coated fine thread stud bolt ASME B16.5M is widely used in industries requiring high-strength bolted connections:
- Petrochemical industry: Pipeline flange connections and processing equipment
- Oil and gas industry: Pressure systems and production facilities
- Chemical industry: Corrosive process equipment
- Power generation: Boilers, turbines, and energy equipment
- Pressure vessels: High-load flange assemblies
- Valve manufacturing: Industrial valve connections
- Heavy machinery: Large equipment fastening systems
- Engineering projects: Customized industrial installations
Its combination of alloy steel strength and PTFE coating makes it suitable for challenging industrial environments.
Why Choose This Product
- ASTM A193 B7 high-strength alloy steel material
- Fine thread design improves fastening control
- PTFE coating reduces installation friction
- Improved corrosion resistance compared with untreated steel
- Suitable for industrial flange applications
- Stable mechanical performance
- Reliable thread accuracy
- Long service life
- OEM customization support
The A193 B7 alloy steel PTFE coated fine thread stud bolt ASME B16.5M provides a dependable fastening solution for critical industrial connections.
Why Choose Flybear
Flybear is a professional manufacturer specializing in industrial fasteners and customized fastening solutions.
- Experience with high-strength alloy steel fasteners
- Support for ASTM standard stud bolt production
- Advanced thread processing and coating capability
- Heat treatment process control
- OEM/ODM customization support
- Stable production capacity for bulk orders
- Strict quality inspection procedures
- Global export experience
- Engineering support for special fastening requirements
Flybear provides reliable fastening products for petrochemical, energy, machinery, and industrial customers worldwide.
Quality Inspection and Control
Quality assurance is maintained throughout production:
- Alloy steel chemical composition analysis
- Raw material certificate verification
- Heat treatment inspection
- Tensile strength testing
- Hardness testing
- Fine thread gauge inspection
- Dimensional accuracy inspection
- PTFE coating thickness inspection
- Surface quality inspection
- Packaging inspection
All manufacturing processes follow ISO-based quality management systems to ensure consistent product reliability.
Selection Guide
When selecting an A193 B7 alloy steel PTFE coated fine thread stud bolt ASME B16.5M, consider:
- Required diameter and length
- UNF thread compatibility
- Operating temperature and pressure
- Flange connection requirements
- Chemical exposure conditions
- Required coating performance
Correct selection ensures reliable clamping force and long-term fastening performance.
FAQ
1. What is A193 B7 alloy steel stud bolt used for?
It is used for high-strength flange and pressure equipment connections in industrial applications.
2. What is the advantage of PTFE coating on stud bolts?
PTFE coating reduces friction during assembly and improves corrosion resistance.
3. Why use fine thread stud bolts?
Fine threads provide more thread engagement and better adjustment control in certain applications.
4. Can A193 B7 PTFE coated stud bolts be customized?
Yes, Flybear supports customized lengths, thread specifications, coatings, and packaging.
5. Which industries use A193 B7 stud bolts?
They are commonly used in petrochemical, oil and gas, chemical, power generation, and heavy industrial systems.
We always adhere to the philosophy of quality first and customer first, providing customers with high-quality fastener products and one-stop fastener solutions.
Contact us for quotation, customization, and technical support via Contact Us.




