ASTM A193 B7 Stud Bolts | PTFE (Xylan) Coated Anti-Corrosion Fasteners

Product Overview

The ASTM A193 B7 Stud Bolt with PTFE (Xylan) coating is the ultimate anti-corrosion solution for extreme environments. The fluorocarbon coating provides a dual barrier against saltwater corrosion and chemical attack, while ensuring a low friction coefficient for accurate torque control.

Unlike standard galvanization, PTFE coating prevents galling (cold welding) during installation and ensures easy removal even after years of service in subsea or offshore conditions.

Key Features

Extreme Corrosion Resistance: Withstands over 3,000 hours of salt spray testing (ASTM B117) without red rust.

Anti-Galling: Low friction coefficient (k-factor 0.05-0.10) prevents seizing and ensures consistent tension.

Temperature Stability: Performs reliably in extreme temperatures ranging from -250°C to +285°C.

Color Coding: Available in Blue (RAL 5017), Green, Red, and Yellow for easy grade identification on site.

Technical Specifications

Ready to Order?

Factory Direct Price | Fast Delivery | OEM Service

Email: admin@changhua-electrical.com  |  WhatsApp: +86 181 3296 8158

[ Get Quick Quote Now ]

Detailed Product Gallery

Manufacturing & Quality Control

Advanced Cold Heading Precision manufacturing.

Optical Sorting 0-PPM defects.

Lab Testing Tensile & Salt Spray.

Project References

Interior Decoration (USA) Hanging Heavy Fixtures

Ceiling System (Europe) Light Fixture Support

Automotive (Germany) High Strength Fasteners

Frequently Asked Questions

Q: Can I get free samples?

Yes! We provide free samples for standard fasteners. You only need to cover the shipping cost.

Q: What standards and MOQ do you support?

Mainly ASTM A193/A194. MOQ is flexible (500 kgs/1000 pcs) for standard items.

Q: What certifications do you have?

We are CE Certified. Every shipment comes with a Factory Quality Inspection Report.

Q: What is your delivery time?

Stock items: 3-7 days. Mass production: 20-30 days.

Q: Can you produce according to drawings?

Yes, OEM/ODM is our strength. Send us CAD drawings for a quote within 24 hours.

Q: What are your payment terms?

We generally accept T/T (30% deposit, 70% before shipment). For long-term partners, we can discuss L/C.