
SPECIAL SERVICES
The World’s Strongest Stainless Steel Bolt
Bumax manufactures premium stainless steel fasteners engineered to the highest standards—with tensile strengths from 1500 to 1700 MPa and operating ranges between −50 °C and 400 °C
Aerospace & Defence
Oil & Gas / Offshore
High-pressure engineering
Chemical & Marine
Security & Locking Systems
About Bumax
Certified Supply. Expert Support. 50+ Years of Industry Leadership.
Astra is proud to be South Africa’s official distributor for Bumax®, renowned for unmatched strength, corrosion resistance, and reliability.
Why It Matters
Ideal for critical applications in aerospace, high-pressure systems, offshore rigs, and security locks, Bumax delivers ultra-high life-cycle value