Description
Technical Overview
The 90 Degree Inside Corner Connector – 30 Series M6 is a compact die-cast zinc alloy internal connector that joins two 30 series extrusion profiles at a 90-degree corner with no external bracket visible on the outside faces. It inserts into the end of one profile and is secured with the included M6 set screws. As a result, it creates a low-profile hidden connection that keeps the frame exterior clean and unobstructed.
Within a T-slot frame, internal connectors are especially useful where an external bracket would conflict with adjacent panels, covers, or a constrained corner geometry. Furthermore, the connector sits recessed within the slot and is fully concealed once the joint is assembled – it can also be combined with an external bracket where additional joint stiffness is required.
Applications
The 90 Degree Inside Corner Connector – 30 Series M6 suits 30 series frame assemblies where a concealed corner connection is required. For example, typical uses include enclosure frames needing unobstructed exterior surfaces for panel fitting, display stands, machine housings with aesthetic constraints, and builds where external brackets at corners are impractical due to panel clearance or confined geometry.
In a frame assembly, it pairs with M6 cap head bolts and Sliding T-Nut – 30 Series, 10 Pack. For joints requiring both a hidden connection and external reinforcement, the 90 Degree 2 Hole Corner Bracket – 30 Series, M6 can be added to the outside face of the same joint.
Technical Specifications
Dimensional Drawing
| A | B | C | D | E |
|---|---|---|---|---|
| 38 | 31 | M6 | 7.8 | 15 |
All measurements are in millimetres
Maker Store Tips and Tricks
-
- Insert the connector into the profile end slot before the corner is fully assembled – once both profiles are joined, internal access is lost.
- Partially thread the M6 set screw first, seat the connector flush with the profile end, then tighten to clamp the joint.
- For heavily loaded joints, supplement with an external corner bracket on the outside face – the internal connector alone is not a structural substitute for a full bracket.
- Check slot alignment between profiles before fully tightening – minor misalignment is easier to correct before the final clamp.
