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The Tenn-Tex C-417 is a left-hand adjustable rear mounting socket designed for undermount drawer slide installations where 10mm dowel mounting is used in place of screws. It accommodates 46mm and 50mm spacing options, giving installers the rear-end support an undermount slide needs in face-frame cabinets and other applications where the slide's back cannot fasten directly to a cabinet panel.
Undermount slides need rear support at the back of the cabinet, and in face-frame constructions or certain frameless layouts, that support cannot come from a direct screw to the panel. This bracket drops into a 10mm bored hole at the rear of the cabinet interior and holds the back end of the slide at the correct height and position. The adjustable socket lets you dial in the slide after the bracket is in place rather than having to re-bore or reposition. It is a rear mounting socket, not a locking device — it holds the slide's back end, while the front locking device (sold separately) handles the drawer box at the front.
Tenn-Tex manufactures the C-417 from molded plastic. Plastic is the correct choice here: it is lightweight, does not corrode, and will not scratch the metal slide members it contacts. Because it installs into a bored hole rather than over a screw, there are no sharp edges or fastener heads to interfere with the slide's travel. The adjustable element of the socket is built into the bracket itself, so no separate adjustment hardware is needed at the rear.
This bracket is the right specification for shops running undermount slides with 10mm dowel rear mounting in production volume. It suits face-frame cabinet builds where the rear of the slide has no flat panel to screw into, and any layout where dowel-drilled rear support is the designed installation method. Because it is handed, it only works on the left side of the cabinet — one left-hand bracket per drawer, paired with a matching right-hand bracket for the opposite side. The 400-count box format is sized for shops processing multiple cases at a time, not for single-drawer service calls. Confirm that your undermount slide specifies 10mm rear dowel mounting and that its rear spacing matches either 46mm or 50mm before ordering.
No. This is a rear mounting socket — it supports the back end of the undermount slide inside the cabinet. The front locking device that clamps under the drawer box at the front is a separate component and is not included.
One per drawer side at the rear. A single drawer requires one left-hand bracket (this SKU) and one right-hand bracket. Order both orientations to complete each drawer's rear support.
The C-417 is a Tenn-Tex component. Use it with undermount slides that specify 10mm dowel rear mounting at 46mm or 50mm spacing. Verify compatibility against your specific slide manufacturer's installation requirements before ordering — rear mounting sockets are not universal across brands or series.
The socket design allows the slide's rear end to be shifted slightly after the bracket is seated in the bored hole, so you can correct minor height or depth differences without re-drilling. The range of adjustment is built into the bracket; it is not an unlimited range and does not replace accurate boring.
Yes, wherever the installation calls for 10mm dowel rear mounting rather than direct panel screwing. The bracket fills that rear-support role in both construction types when the slide's spec requires it.
Rear mounting sockets are a small part with a big impact on how an undermount drawer sits and closes. The C-417 in left-hand orientation, packed 400 to a box, keeps production moving for shops where dowel-drilled undermount work is part of every run.
Sold In: 400 Each