BS A 104:2025
AEROSPACE SERIES Bolts, hexagonal heads with optional safety locking wire holes, unified threads, corrosion-resisting or heat-resisting steels, plain finish. Specification Classification CR steel Rm ≥ 127 600 lbf/in2 (880 MPa) at Ambient temperature | +515 °C. Classification HR steel Rm ≥ 130 500 lbf/in2 (900 MPa) at Ambient temperature | +515 °C
| Standard number: | BS A 104:2025 |
| Pages: | 23 |
| Released: | 2025-08-19 |
| ISBN: | 978 0 539 05624 2 |
| Status: | Standard |
BS A 104:2025 Aerospace Series Bolts
Introducing the BS A 104:2025 Aerospace Series Bolts, a pinnacle of engineering excellence designed to meet the rigorous demands of the aerospace industry. These bolts are crafted with precision and durability in mind, ensuring they stand up to the most challenging environments and applications.
Product Overview
The BS A 104:2025 standard specifies the requirements for hexagonal head bolts with optional safety locking wire holes, unified threads, and a plain finish. These bolts are available in two classifications based on their material properties:
- CR Steel: Corrosion-resisting steel with a minimum tensile strength of 127,600 lbf/in2 (880 MPa) at ambient temperature, capable of withstanding temperatures up to +515 °C.
- HR Steel: Heat-resisting steel with a minimum tensile strength of 130,500 lbf/in2 (900 MPa) at ambient temperature, also suitable for temperatures up to +515 °C.
Key Features
- Hexagonal Heads: Designed for easy installation and removal, providing a secure fit in various applications.
- Optional Safety Locking Wire Holes: Enhance safety by allowing the use of locking wires to prevent loosening in high-vibration environments.
- Unified Threads: Ensure compatibility with a wide range of aerospace components and systems.
- Corrosion and Heat Resistance: Available in materials that resist corrosion and withstand high temperatures, making them ideal for aerospace applications.
- Plain Finish: Provides a clean and professional appearance while maintaining the integrity of the bolt.
Technical Specifications
| Standard Number | BS A 104:2025 |
|---|---|
| Pages | 23 |
| Release Date | 2025-08-19 |
| ISBN | 978 0 539 05624 2 |
| Status | Standard |
Applications
The BS A 104:2025 Aerospace Series Bolts are specifically engineered for use in the aerospace industry, where reliability and performance are paramount. These bolts are suitable for a variety of applications, including:
- Aircraft assembly and maintenance
- Spacecraft construction
- High-performance automotive engineering
- Industrial machinery requiring high-strength fasteners
Why Choose BS A 104:2025 Bolts?
Choosing the right fastener is crucial in aerospace and other high-stakes industries. The BS A 104:2025 bolts offer several advantages:
- Reliability: Engineered to meet stringent aerospace standards, ensuring consistent performance under extreme conditions.
- Versatility: Suitable for a wide range of applications, thanks to their robust design and material options.
- Safety: Optional safety locking wire holes provide an additional layer of security, preventing accidental loosening.
- Durability: Made from high-quality materials that resist corrosion and heat, extending the lifespan of the bolts.
Conclusion
The BS A 104:2025 Aerospace Series Bolts are an essential component for any aerospace project, offering unmatched strength, reliability, and safety. Whether you're working on aircraft, spacecraft, or high-performance vehicles, these bolts provide the peace of mind that comes with using a product designed to meet the highest industry standards.
Invest in the BS A 104:2025 bolts and ensure your projects are built on a foundation of quality and excellence.
BS A 104:2025
This standard BS A 104:2025 AEROSPACE SERIES Bolts, hexagonal heads with optional safety locking wire holes, unified threads, corrosion-resisting or heat-resisting steels, plain finish. Specification is classified in these ICS categories:
- 49.030.20 Bolts, screws, studs