Rockwell Hardness Tester (RB/RC)｜Essential Testing for Fastener Quality Control

Fontec's quality assurance department is equipped with Rockwell hardness testers (RB/RC), which allow for rapid and reliable measurement of metal surface hardness. The Rockwell method is widely used in the fastener industry for its simplicity and consistent results, making it ideal for evaluating the hardness of cold forged screws, rivets, and fastener components.

Principles of Rockwell Hardness Testing

The Rockwell scale measures hardness based on the depth of indentation created by a steel ball or diamond cone under a standard load. The test involves a minor load (pre-load) followed by a major load, and the difference in penetration depth determines the hardness value. Unlike other methods, Rockwell testing does not require measuring the indentation area, making it fast and suitable for high-volume fastener inspection.

Advantages of Fontec’s Implementation

• ✔ Supports common RB (for softer materials) and RC (for harder materials) test scales
• ✔ Fast testing speed with high repeatability and stable readings
• ✔ Applicable to screws, rivets, studs, and bar stock materials
• ✔ Calibrated with standard test blocks and compliant with ISO & ASTM protocols

Rockwell Testing Equipment Showcase

Rockwell Hardness Tester (RB/RC)

Fontec's Rockwell Hardness Testing Equipment

Contact Fontec

If your fastener products require hardness testing, quality verification, or sample evaluation, feel free to contact Fontec. We offer complete inspection capabilities with reporting support to ensure product consistency and compliance.