Not all fasteners are made the same
The material a fastener is made from affects more than just appearance. It determines how strong it is, how long it lasts, and where it can be used.
Here are the most common fastener materials, and where each one shines.
1. Carbon steel
Most widely used fastener material.
Properties:
- High strength-to-cost ratio
- Can be heat-treated for extra hardness
- Prone to corrosion unless coated (e.g. zinc-plated, galvanised)
Common uses:
- Construction
- Machinery
- General industrial fastening
2. Stainless steel
Ideal for corrosion resistance and longevity.
Properties:
- Contains chromium for rust protection
- Grades like 304 (A2) and 316 (A4) used in harsh environments
- Non-magnetic (in most cases)
Common uses:
- Marine and coastal environments
- Food processing and medical equipment
- Outdoor construction
3. Alloy steel (specialised)
High-performance steel alloyed with elements like chromium, molybdenum, or vanadium.
Properties:
- Extremely strong
- Heat-resistant
- Requires protective coatings
Common uses:
- Automotive and aerospace
- Mining equipment
- High-pressure environments
4. Brass
Brass fasteners are used for decorative or electrical applications.
Properties:
- Corrosion resistant (especially to water)
- Non-magnetic and electrically conductive
- Malleable and easy to machine
Common uses:
- Plumbing
- Electrical components
- Architectural hardware
5. Nylon and plastic
Lightweight and non-conductive options.
Properties:
- Resistant to chemicals and moisture
- Electrically insulating
- Low strength compared to metals
Common uses:
- Electronics
- Light-duty applications
- Cable management
Choosing the right material matters
When selecting fasteners, consider:
- Environment (wet, chemical, heat)
- Strength requirements
- Aesthetic or electrical needs
Need help choosing the right material? Explore our full range or chat with a fastener specialist today.