SkyLoc® External Thread (EXT) Series
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SkyLoc® EXT — Maximum Structural Performance with Beam-Style Locking
The SkyLoc® EXT (External-Thread) family is designed for applications requiring maximum structural performance and robust vibration resistance. Utilizing a 1/4-28 two-lead external thread with a beam-style locking element, EXT fasteners deliver exceptional resistance to loosening, long service life, and tolerance for installation variability.
⚙ Specifications
Thread 1/4-28 2-Lead
Material 4140 Steel, Cadmium-Plated
Ultimate Tensile Strength 2,600 lbs-f (min)
Ultimate Single Shear 2,500 lbs-f (min)
✓ Proven Applications
- F-15, F-16, F-22, F-35, F/A-18 fighter aircraft
- C-17, AC-130 cargo/transport aircraft
- KC-135 tanker aircraft
- E-2C/D, H-60 rotary and carrier-based aircraft
⚡ Advantages
- Higher load capacity than SN series
- Beam-style locking element for positive retention
- Tolerance for misalignment and curved panel geometry
