Middle Atlantic STL Int./ext. 45 D. Elbow - G4012TX

Middle Atlantic G4012TX STL Internal/External 45-Degree Elbow Fitting

Overview

The Middle Atlantic G4012TX is a steel 45-degree elbow fitting designed for the 4000-series raceway system, handling both internal and external corner transitions. Where conduit runs need to change direction at a 45-degree angle — along a wall edge, ceiling junction, or around a structural corner — this fitting maintains raceway continuity without cutting or field-fabricating a bend. The G4012TX ships in gray to match standard 4000-series raceway installations and carries TAA compliance, making it viable for government and federally funded projects with domestic-sourcing requirements.

Compatibility

Designed for use with Middle Atlantic's Middle Atlantic 4000-series steel raceway system. Fits both internal corner configurations (where the raceway transitions inside a corner) and external corner configurations (where it wraps an outside edge), giving installers a single SKU for either orientation. Verify channel width and raceway profile match the 4000-series spec before ordering — this fitting is not interchangeable with the 200-series or 700-series raceway families. For full raceway and cable management builds, pair with straight sections, couplings, and end caps from the same 4000-series line to maintain a consistent appearance and secure fit throughout the run.

Installation Notes

The dual internal/external geometry means the G4012TX can be oriented at installation time to suit the corner type — confirm the approach angle before securing. As with all steel raceway fittings, use appropriate fasteners for the mounting surface (drywall anchors, masonry anchors, or direct wood screws depending on substrate). TAA-compliant status should be documented at the project level; retain the product packaging or invoice as sourcing evidence for compliance audits.