Overview
The 3/8-16 channel nut with spring (model 9910-1000-0278) is a precision fastening component designed for use with standard strut channel systems. This bulk box of 225 pieces provides a cost-effective supply for contractors, installers, and maintenance professionals. The integrated spring mechanism enables hands-free installation — once inserted into the channel and rotated 90°, the nut locks in place without slipping, allowing efficient fastening of additional components.
Key Features
- 3/8-16 UNC thread size fits standard structural support systems
- Integrated spring load for quick positioning and hands-free holding
- Case-hardened construction ensures positive biting action into channel edges
- Bulk packaging of 225 units reduces per-unit cost for high-volume projects
- Compatible with standard strut channel systems (1-5/8″ and larger series)
Technical Specifications
| Thread Size | 3/8-16 UNC |
| Thread Standard | ANSI B1.1 Unified Screw Thread, Coarse Series |
| Quantity per Box | 225 pieces |
| Spring Type | Integral load spring |
| Material | Cold-rolled steel, case hardened |
| Design Torque (3/8″ size) | 19–25 ft-lbs (26–34 N·m) |
| Installation Method | Insert and 90° rotation into strut channel |
Typical Applications
- Structural support system assembly and fastening
- HVAC equipment mounting and ductwork bracing
- Cable tray and conduit support systems
- Mechanical equipment installation and alignment
- Industrial framing and modular support structures
- Renovation and retrofit projects requiring bulk fasteners
Compatibility & Replacements
Compatible With
- Standard 1-5/8″ series strut channel systems
- P-Series and C-Series channel profiles
- Unistrut and equivalent strut channel manufacturers
- Standard bolt and screw fastening on structural support frames
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 9910-1000-0278 is a generic-brand equivalent to standard 3/8-16 channel nuts with spring mechanisms from major fastener suppliers. Specific OEM part number compatibility should be confirmed with the original equipment manufacturer.
Works With
- Strut channel support systems and framing kits
- Standard metric and imperial fastening assemblies
- Structural support and mechanical installation tools




