| 1 |
Fuselage Assembly |
Bolts, Screws, Rivets |
- Secure fuselage skins and frames
- Maintain structural integrity under stress
|
Aircraft-grade aluminum, titanium, or high-strength steel |
- Must endure cabin pressurization cycles
- Subject to FAA/EASA regulations
|
| 2 |
Wing Structures |
Hi-Lok Bolts, Advanced Rivets |
- Attach wing skins to ribs, spars, and stringers
- Resist loosening under vibration
|
Titanium alloys, high-strength steel |
- High corrosion resistance
- Lightweight for fuel efficiency
|
| 3 |
Engine Assemblies |
Aerospace Bolts, Locking Nuts, Studs |
- Secure turbine and compressor components
- Withstand high heat and pressure
|
Nickel superalloys, titanium, stainless steel |
- High tensile and shear strength
- Regular inspection due to stress
|
| 4 |
Landing Gear |
Shear Bolts, Locking Pins, Bushings |
- Absorb heavy impact loads
- Secure wheel, brake, and steering systems
|
Heat-treated steel, titanium |
- Designed for high-load cycles
- Frequent maintenance checks
|
| 5 |
Control Surfaces |
Clevis Pins, Special Bolts, Nuts |
- Connect ailerons, rudders, elevators
- Transfer pilot commands accurately
|
Aluminum alloys, specialty steels |
- Must resist vibration-induced loosening
- Requires strict balancing for stability
|
| 6 |
Interior Cabin |
Screws, Captive Fasteners, Quick-Release Fasteners |
- Secure passenger seats, overhead bins, and paneling
- Allow rapid installation/removal for reconfigurations
|
Lightweight alloys, polymers, composites |
- Must meet flammability and safety standards (e.g., FAR 25.853)
- Designed for ergonomic installation/maintenance
- Must pass static and dynamic load tests
|
| 7 |
Avionics & Electronic Systems |
Small Screws, Lock Nuts, Inserts |
- Secure circuit boards, navigation units, and flight instruments
- Mitigate loosening from constant vibration
|
Stainless steel, aluminum |
- Often feature EMI/RFI shielding
- Need secure locking to avoid electrical faults
- Regulated by RTCA/DO-160 environmental testing requirements
|
| 8 |
Fuel Systems & Tanks |
Sealing Rivets, Self-Sealing Screws, O-Ring Bolts |
- Prevent fuel leakage under pressure
- Maintain structural and chemical integrity of fuel compartments
|
Corrosion-resistant alloys, specialized sealants |
- Must be fuel-resistant
- Critical to preventing contamination and fuel loss
- Regular safety checks to ensure seal integrity
|
| 9 |
Helicopter Rotor Assemblies |
High-Strength Bolts, Pins |
- Secure rotor blades to hub assemblies
- Transfer torque and lift forces
|
High-tensile steels, titanium |
- Subject to continuous rotational stress
- Balanced torque application essential for rotor equilibrium
- Fail-safe designs to prevent catastrophic failures
|
| 10 |
Cabin Flooring & Cargo |
Floor Bolts, Quick-Release Pins, Tie-Down Rings |
- Secure floor panels and cargo rails
- Offer quick reconfiguration for cargo loading
|
Aluminum or steel with protective coatings |
- Must handle dynamic loads during takeoff, landing, and turbulence
- Quick-release designs expedite loading/unloading
- Must conform to cargo restraint standards (e.g., NAS 3610)
|