Self-Locking Nuts
Self-locking and free-spinning nut configurations engineered for vibration-prone assemblies.
TFI manufactures commercial self-locking nuts designed to provide secure fastening performance in applications subject to vibration and dynamic loading. Components are cold formed, tapped, and processed under controlled conditions to support dimensional accuracy and consistent locking performance.
Production supports MS standards and customer-specific requirements across aerospace-adjacent, transportation, and industrial markets.
Key Features
- Self-locking and free-spinning configurations
- Hex and double-hex styles available
- Cold-formed construction for dimensional control
- Controlled tapping and threading processes
- Stainless and alloy material options
- High-volume manufacturing capability
Available Configurations
TFI provides commercial T-bolts in a range of dimensional and material options designed to meet application-specific demands.
- Styles: Hex, double-hex, flange
- Locking designs: Slotted and elliptical
- Diameter range: ¼” through 5/16”
- MS standard part coverage
- Customer-defined geometries and tolerances
- Custom head styles and shank lengths
All configurations are produced under controlled manufacturing processes to ensure consistent locking characteristics and repeatable performance.
Elliptical
MS21046C4E
MS21046C5E
MS20500-428E
MS20500-524E
Trunnions
Saddle Trunnion
Trunnion Machined
Trunnion, Cold Headed
Trunnion Forging
Sizes And Materials
TFI produces commercial T-bolts in standard imperial and metric configurations. Materials are chosen to support durability, corrosion resistance, and application-specific performance.
Materials
- A286
- 302 stainless
- 347 stainless
- 300 / 400 series stainless
- Alloy steel
Put Our Capabilities to Work
Work with TFI to deliver fastening solutions engineered for vibration resistance, dimensional precision, and reliable program supply.