Overview
The Fastenal 48603 is an electro-galvanized steel channel nut with a regular spring mechanism, sized 3/8″-16. Designed specifically for use with 1-3/8″ and 1-5/8″ strut channel systems, this fastener provides secure clamping with easy installation thanks to the integrated spring that holds the nut in position during assembly. This product is supplied new in box as a case lot of 100 units.
Key Features
- 3/8″-16 thread size with spring-loaded design for simplified installation
- Electro-galvanized steel finish provides corrosion protection
- Compatible with 1-3/8″ and 1-5/8″ strut channel sizes
- Spring mechanism keeps nut secured in channel during assembly
- Bulk package of 100 units ideal for industrial and construction projects
- Made in the USA by Fastenal
Technical Specifications
- Thread Size: 3/8″-16
- Bolt Size: 3/8″
- Overall Width: 3/4″
- Overall Length: 1-1/4″ (1.33″)
- Overall Height: 2″ (uncompressed)
- Compressed Height: 0.6″ (spring compressed)
- Thickness: 3/8″
- Material: Steel, Electro-galvanized
- Compatible Channel Sizes: 1-3/8″ and 1-5/8″ strut channel
- Quantity per Box: 100 units
- Country of Origin: USA
Typical Applications
The Fastenal 48603 channel nut is widely used in:
- Strut channel shelving and racking systems
- Industrial and commercial construction frameworks
- Equipment mounting and fastening on structural channels
- Utility and cable tray assemblies
- MRO (maintenance, repair, and operations) replacement fasteners
Compatibility & Replacements
Compatible With
- 1-3/8″ strut channel (slotted channel systems)
- 1-5/8″ strut channel
- All standard slotted channel frameworks and assemblies
- 3/8″-16 threaded bolts and screws
Replaces / Drop-In Replacement For
The Fastenal 48603 is the current standard part number for this fastener type. No superseded part numbers are listed by the manufacturer. Verify compatibility with your specific channel system before ordering.
Works With
- 3/8″-16 bolts and fastening hardware
- Strut channel assembly systems (slotted angle systems)
- Standard industrial fastening and construction applications
- MRO and facility maintenance programs



