Schwinn 6K399 C-channel inner corner is a plastic corner piece for Schwinn Hardware aluminum C-channels, designed to form a finished inner junction between two channel runs. The 7/8 in (22 mm) wide design matches the channel width, so the transition sits flush and keeps the channel line visually consistent across the corner. This silver version matches clear anodized aluminum, helping the plastic corner blend with standard Schwinn Hardware C-channels used in decorative hardware and moldings. Because the plastic corner pieces allow you to make a straight cut to the channel and fit two lengths into the corner piece, installers can form a clean inner corner without cutting miter joints, which streamlines fabrication when working on cabinetry or other projects using these C-channels.
This Schwinn 6K399 C-channel inner corner is intended for use where two 7/8 in (22 mm) wide aluminum C-channels meet at an inside corner. Because the plastic corner pieces allow straight cuts, installers cut each channel square to length, then seat the two straight-cut channel ends into the inner corner piece. This approach uses the molded shape of the corner part to position both channel lengths, instead of relying on matching miter angles on the aluminum. The silver finish that matches clear anodized helps the assembled corner visually carry the line of the C-channel through the turn in cabinetry or decorative trim runs.
The Schwinn 6K399 series 7/8 in (22 mm) wide silver C-channel inner corner, part number 59280, is used wherever Schwinn Hardware aluminum C-channels are carried around an inside corner in decorative hardware and moldings. Because the web description identifies it as an inner corner for alu C-channels in the handles and pulls product class, it is suited to handle and pull channel layouts that transition along adjacent cabinet faces or interior panel runs. Installers working with silver, clear-anodized-look channels can use this plastic corner piece so the change of direction follows the same line and appearance as the straight channel sections. In practice, this supports cabinet and furniture designs that rely on continuous C-channel details turning cleanly at inside corners.
The design in which plastic corner pieces allow you to make a straight cut to the channel and fit two lengths into the corner piece directly affects shop workflow and on-site adjustments. Instead of setting up precise miter cuts on aluminum C-channels, installers cut each length square, which can speed repeat cuts during production of multiple cabinets or panels. Because the same corner part creates a finished inner or outer corner without making a miter cut to the channel, it introduces a consistent geometry that can be repeated across projects using Schwinn Hardware C-channels. The 7/8 in (22 mm) width tied to the 6K399 series means the corner is dimensioned for those channels, so the outer appearance remains aligned and the corner maintains the same apparent width as straight channel runs. With the silver version matching clear anodized, the joint between plastic corner and aluminum C-channel presents as a unified decorative detail in handle and pull channel applications.
The Schwinn 59280 inner corner is a plastic corner piece for aluminum C-channels that joins two channel lengths at a corner to create a finished inner or outer turn.
This inner corner allows straight cuts to the C-channel so two square-cut lengths fit into the corner piece, reducing the need for miter cutting on aluminum profiles.
The 6K399 series inner corner is for 7/8 in (22 mm) wide C-channels, so it aligns to channels of that width in Schwinn Hardware handle and pull systems.
The silver version matches clear anodized, so when used with clear-anodized aluminum C-channels, the corner visually blends with the channel surface.
The web description states it creates a finished inner or outer corner, so it supports both directions of turn using straight-cut channel lengths.
Installation drawings for this inner corner are available at the URL given in the product description, which provides PDF install drawings and templates.
The Schwinn 6K399 series 7/8 in (22 mm) wide silver C-channel inner corner, part 59280, provides a way to create finished inner or outer corners on aluminum C-channels using straight cuts. The plastic corner pieces allow you to cut channels square and fit two lengths into the part, which supports consistent channel runs in decorative hardware and moldings. The silver color matching clear anodized ties the corner into typical Schwinn Hardware channel finishes, supporting continuous handle and pull channel designs around inside turns.