About Us
Precision Fasteners for Critical Aircraft Assemblies
MAC manufactures a focused portfolio of aerospace-standard screws and bolts produced from A286, 302 and 431 stainless steels, 4037, 8740, INCO-718, and other approved aerospace alloys. In addition to national and international standards, MAC supports bespoke fastening solutions engineered to meet program-specific requirements.
Integrated Processes.
Controlled Results.
Centrally located in Ottawa, Kansas, MAC provides complete in-house capabilities spanning engineering, tooling, cold heading, thread rolling, secondary operations, heat treating, and plating.
- Diameters from .094″ to .625″
- Lengths from .185″ to 4.000″
- Primary heading and thread rolling
- Secondary trim, shave, point, drill, and fillet roll operations
This integrated production environment ensures controlled geometry, consistent metallurgy, and reliable lot-to-lot repeatability.
Verification at Every Stage
MAC operates a complete in-house fastener testing laboratory that serves as the hub of its quality system. Certified to AS9100D and meeting ISO 17025 laboratory standards, MAC’s facility supports:
- External thread inspection (System 21, 22, 23)
- Adhesion and coating thickness testing
- Corrosion testing
- Microhardness and Rockwell hardness testing
- Shear, fatigue, tensile, and torque-tension testing
- Metallography
- Stress durability testing
- Magnetic particle and liquid penetrant inspection
Statistical process controls monitor every phase of production, providing continual technical support from raw material through finished product.
Let’s talk
MAC combines decades of production expertise, disciplined quality systems, and vertically integrated processes to deliver reliable fastening solutions for aerospace and industrial programs.