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Schwinn 6K377 Series L cap is a plastic end cap designed to give an L-channel a finished termination when the channel butts up against the inside of a cabinet or wall, so exposed channel ends are visually closed off at that stopping point. The part is the rectangular right version, so it is shaped to finish the right-hand end of the compatible channel run in a clean, square profile. The cap is 2-1/4 in (57 mm) long, so it spans a meaningful length of the open channel to create a consistent, continuous-looking edge instead of a short plug. The black color matches dark channel and cabinet layouts where a dark termination is preferred, helping the channel edge visually blend into adjacent surfaces.
This cap is identified as the rectangular right version for an L-channel in the Schwinn 6K377 Series, so its geometry is tailored to close the right-hand end of that channel profile. Using the right-oriented piece on the correct side of the run keeps the outer edges of the channel aligned with the end cap, so the face line along drawers, panels, or cabinet interiors remains straight without overhang or step. The 2-1/4 in (57 mm) length gives the cap enough reach along the channel to match the linear look of the profile, which is useful wherever the channel terminates directly into an inside cabinet panel or an adjoining wall surface.
The Web description states that these plastic end caps give the channel a finished termination when butting up against the inside of a cabinet or wall, so they are suited to cabinet interiors and wall-adjacent channel runs. On an inside cabinet side, the cap finishes the visible channel end where the metal or profile would otherwise stop abruptly at the panel, which keeps the edge from looking raw in that location. When the channel terminates against a wall, the same design visually closes the end so the channel and wall transition read as a deliberate stop rather than a cut piece, which is important on exposed vertical or horizontal runs. The black color allows the cap to sit in darker cabinet boxes or along dark wall conditions where a lighter termination would stand out more than the rest of the decorative hardware.
The SAP description L-CAP RECT RIGHT FOR L-CHANNEL,BLACK and the product name Schwinn 6K377 Series 2-1/4 in (57 mm) Long Black L Cap Rectangular Right, - 59271 show that this part is both right-hand specific and rectangular, so its shape is engineered for a particular channel orientation. That right-hand designation means the cap aligns with the way the L-channel profile finishes on one side, which helps maintain the correct reveal and sightline where the run stops against a cabinet side or wall. The rectangular geometry pairs with straight channel edges, so there are no tapered or rounded contours altering the linear aesthetic of the decorative hardware and moldings. At 2-1/4 in (57 mm) long, the cap contributes a substantial finished section along the channel, supporting a more continuous appearance on drawer fronts or tall cabinet runs where short terminations would be more noticeable.
The Schwinn 59271 plastic end cap closes the end of an L-channel when it butts against the inside of a cabinet or wall, so the visible channel termination appears finished.
The Schwinn 6K377 Series black right L cap is 2-1/4 in (57 mm) long, so it covers a meaningful section of the channel end for a more continuous finished look.
This rectangular right cap is specified as L-CAP RECT RIGHT FOR L-CHANNEL, so it is intended to finish the right-hand end of the matching L-channel profile.
The black finish lets the cap blend with dark cabinet interiors or matching hardware, so the channel termination does not visually dominate the inside of the cabinet or wall line.
This plastic end cap is designed to give an L-channel a finished termination when it butts up against the inside of a cabinet or wall, supporting clean decorative hardware lines.
The rectangular shape matches straight channel profiles, so the finished edge remains square and aligned with the channel, giving cabinets and wall runs a consistent linear look.
The Schwinn Hardware 6K377 Series 2-1/4 in (57 mm) Long Black L Cap Rectangular Right, 59271, is specified to give an L-channel a finished termination where it meets the inside of a cabinet or a wall. The right-hand rectangular design supports straight, aligned channel sightlines on the chosen end, and the 57 mm length extends that clean edge along the run. For projects using dark decorative hardware and moldings, the black color helps the termination settle into the overall design. Choose this part when a right-side channel stop needs to read as an intentional, finished detail.