Abb b9121/4 Deep Channel Spring Nut 1/4-20 Steel

Product Description

The ABB b9121/4 is a deep channel spring nut designed for securing threaded fasteners within strut channel systems. This self-holding clamping nut features an integrated spring that holds the nut in position inside the channel slot, allowing one-person installation and consistent clamping force once the bolt is torqued. Manufactured from steel with a Galv-Krom standard finish for corrosion resistance, this 1/4-20 inch threaded nut is sized for use with 3/4 inch deep channels. It is a core hardware component in electrical, mechanical, and structural support assemblies where channel strut is the primary mounting structure.

This spring nut is used in commercial and industrial applications where threaded connections must be made to deep-profile strut channel. Typical installations include electrical conduit support, cable tray, HVAC equipment supports, pipe hangers, and general mechanical equipment mounting frames. The 1/4-20 thread size suits light-duty to medium-duty fastening applications across a wide range of support structures. Electricians, HVAC technicians, plumbers, and general contractors regularly use this type of hardware during new construction and retrofit work.

Key Features

• Self-holding spring keeps nut positioned inside channel slot during installation
• 1/4-20 inch thread size for standard fastener compatibility
• Designed specifically for 3/4 inch deep channel profiles
• Steel construction with Galv-Krom standard finish for durability
• 3/16 inch thickness fits standard deep channel slot geometry

Compatibility

Designed for use with 3/4 inch deep strut channels. Compatible with 1/4-20 inch threaded bolts and rods used in standard channel strut support systems.

Installation Notes

Installation does not require energized equipment shutdown in most strut-mounting scenarios, but always follow site-specific safety procedures when working near live electrical systems. Slide the spring nut into the channel slot, rotate 90 degrees to engage, and thread the fastener through. A standard wrench or socket is sufficient for tightening. Follow applicable NEC or IBC guidelines for support spacing and load requirements in electrical and structural installations.

Technical Specifications

• Thread Size: 1/4-20 inch
• Thickness: 3/16 inch
• Channel Depth Compatibility: 3/4 inch deep channels
• Material: Steel
• Finish: Galv-Krom / Standard

Standard Information

• Brand: ABB
• Manufacturer Part Number: b9121/4