Thomas Betts B-100-3/8 Strut Channel Short Spring Nut

Product Description

The THOMAS BETTS B-100-3/8 is a short spring nut designed for use with strut channel systems. It secures 3/8 inch bolts with a 3/8-16 thread size and is constructed from steel with an electrogalvanized finish for corrosion resistance. This fitting clips into the channel track and allows for tool-free positioning before bolt tightening, making it a standard hardware component in strut-based support assemblies. It is compatible exclusively with Thomas Betts Channel Type B and is typically installed by electricians, mechanical contractors, and pipefitters working on equipment support, conduit runs, and pipe hangers.

Short spring nuts are a routine component in commercial and industrial construction where strut channel systems support conduit, cable trays, piping, HVAC equipment, and mechanical components. This part is sized for 3/8 inch bolt applications and is used wherever Channel Type B strut is specified. The electrogalvanized steel construction suits indoor and light-duty applications requiring basic corrosion protection. Installers working in data centers, mechanical rooms, and electrical distribution areas will encounter this hardware as a standard catalog item.

Key Features

• Short spring nut profile fits into Channel Type B strut without tools during initial placement
• 3/8-16 thread size accepts standard 3/8 inch bolts
• Steel construction with electrogalvanized finish provides corrosion resistance for indoor use
• Cross-referenced as Unistrut P4008 and B-Line N528 for compatibility verification
• Lightweight at 0.1 pounds per piece

Compatibility

Designed for use with Thomas Betts Channel Type B only. Cross-references to Unistrut part number P4008 and B-Line part number N528 may assist in identifying equivalent applications, but installation should be confirmed against Channel Type B specifications.

Installation Notes

Installation is typically performed by electricians or mechanical contractors following NEC or local mechanical code requirements for strut support systems. De-energize any nearby electrical equipment before working in panel or conduit areas where strut is mounted. Insert the spring nut into the channel slot, position it at the desired location, then thread and tighten the bolt to secure the fitting. Do not use this nut with channel types other than Thomas Betts Channel Type B, as improper fit can result in fastener pullout under load.