BS 919-4:2007

Overview

BS 919-4:2007 specifies the limits of size for gauges used to measure screw threads of unified form diameters 1/4 inch and larger. This standard is essential for ensuring the accuracy and reliability of screw thread measurements, which are critical in various mechanical systems and components. Compliance with this standard helps manufacturers and engineers maintain the integrity of their products and systems.

Key Requirements

The standard outlines specific requirements for the limits and tolerances applicable to screw gauges. Key aspects include:

• Gauge Types: The standard covers various types of gauges, including plug gauges and ring gauges, which are used to assess the dimensional accuracy of screw threads.
• Size Limits: It defines the allowable limits of size for gauges based on the unified thread form, ensuring that measurements are consistent and reliable.
• Tolerances: The standard specifies tolerances that must be adhered to, which are crucial for the interchangeability of components in mechanical systems.

Implementation Benefits

Implementing BS 919-4:2007 provides several benefits for manufacturers and compliance professionals:

• Quality Assurance: Adhering to the specified limits and tolerances enhances the quality of screw threads, reducing the risk of failure in mechanical applications.
• Interchangeability: By following the standard, manufacturers can ensure that components are interchangeable, which simplifies assembly and maintenance processes.
• Reduced Rework: Compliance with the standard minimizes the likelihood of rework due to measurement errors, saving time and resources.

Compliance Value

Compliance with BS 919-4:2007 is not only a matter of regulatory adherence but also a strategic advantage. The standard supports:

• Market Competitiveness: Products manufactured in accordance with this standard are more likely to meet customer expectations for quality and reliability, enhancing market competitiveness.
• Risk Mitigation: By ensuring accurate measurements, compliance reduces the risk of product failures, which can lead to costly recalls and damage to reputation.
• Global Standards Alignment: Following BS 919-4:2007 aligns with international best practices, facilitating easier entry into global markets.

In conclusion, BS 919-4:2007 serves as a critical guideline for the measurement of screw threads in mechanical systems. By adhering to this standard, manufacturers can ensure high-quality production, enhance product reliability, and maintain compliance with industry regulations.