Overview
The Minerallac 8-B conduit hanger is a heavy-duty zinc-plated steel hanger designed for mounting 3-1/2″ electrical conduit to wood, steel, and concrete surfaces. Each unit includes a bolt and nut for simple, tool-free installation. This box contains 25 hangers—ideal for large electrical installations, retrofit projects, and industrial panel builds. Built from low-carbon cold-rolled steel with zinc plating, these hangers withstand 200 lb loads and are UL-compliant for safety-critical applications.
Key Features
- Fits 3-1/2″ EMT, rigid, and IMC conduit (outside diameter 3.971″ to 4″)
- Zinc-plated low-carbon cold-rolled steel construction
- 200 lb load capacity per hanger
- Includes bolt and nut; mounts on wood, steel, or concrete
- UL-compliant; RoHS and Prop 65 compliant
- Three-hole design with 5/16″ mounting hole spacing
Technical Specifications
- Conduit Size: 3-1/2″ EMT/Rigid/IMC
- Conduit OD Range: 3.971″ to 4″
- Load Capacity: 200 lb
- Material: Low-carbon cold-rolled steel
- Finish: Zinc-plated
- Rod Size: 1/4″
- Mounting Hole: 5/16″ diameter
- Dimensions: 1-1/4″ L × 3-3/4″ W × 5-3/4″ H
- Quantity: 25 units per box
- Certifications: UL 9N38; RoHS; Prop 65 compliant
- Part Number: 8-B
- Manufacturer: Minerallac Company
Typical Applications
Minerallac 8-B hangers are widely used in:
- Commercial and industrial electrical installations
- Building conduit routing and support systems
- PLC and control panel wiring infrastructure
- Motor control centers (MCCs) and power distribution
- Retrofit and maintenance projects requiring bulk quantities
- HVAC and mechanical equipment conduit management
Compatibility & Replacements
Compatible With
- 3-1/2″ EMT (Electrical Metallic Tubing) conduit
- 3-1/2″ Rigid Metal Conduit (RMC)
- 3-1/2″ Intermediate Metal Conduit (IMC)
- Standard 1/4″ hanger bolts and rods
- Wood, steel, and concrete mounting surfaces
Replaces / Drop-In Replacement For
- Older or worn Minerallac 8-B units (direct equivalent)
- Generic zinc-plated 3-1/2″ conduit hangers of equivalent rating
Works With
- UL-listed electrical conduit systems
- Standard mounting hardware (bolts, nuts, washers)
- All major conduit types: EMT, Rigid, and IMC
- NFPA 70 (National Electrical Code) compliant installations














