Anodized aluminum 4 hole inside corner bracket fastening method connects two extrusion profiles together at a 90-degree connection. This 4 hole inside corner bracket doesn't require any machining. This 4 hole inside corner bracket engages the 2-degree lock feature. For tightening assembly hardware see Recommended Fasteners.

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Recommended Fasteners

MOUNT TO T-SLOT EXTRUSION

ITEM # 651129 (Qty 4) 5/16-18 x 11/16″ FBHSCS & Economy T-Nut