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The Knape & Vogt 4101B is a screw-on rear-mount bracket for the KV 4100 series drawer slide, providing the back-of-cabinet support that face-frame installations require. Without a rear bracket, a slide mounted only at the front face frame has nothing to anchor its back end — this bracket closes that gap and keeps the slide running true.
Face-frame cabinets are the classic American cabinet construction: a solid wood frame covers the front edges of the box, and the interior side panel is set back from that frame. When you mount a side-mount slide in a face-frame opening, the front of the slide anchors to the face frame, but the rear has no support unless you add a bracket. The 4101B attaches to the cabinet's back panel or rear nailer and holds the back end of the 4100 series slide in position, so the drawer runs level and the slide does its job across the full depth of the cabinet.
This bracket is a required component in face-frame 4100 series installations, not an optional upgrade. Skipping it leaves the rear of the slide unsupported, which causes racking and uneven travel over time.
The 4101B is metal in a zinc finish — the same practical, corrosion-resistant finish used throughout KV's slide and bracket hardware. It is built for indoor cabinet work: kitchens, vanities, office casework, and similar dry environments. The screw-on fastening method uses standard wood screws driven into the cabinet back or nailer, making installation straightforward on the bench or in the field.
This bracket is series-specific: it is made for the KV 4100 drawer slide and should not be mixed with brackets from other KV series or other manufacturers. Because the bracket is non-handed, one part number covers both sides of the opening — order one bracket per slide, two per drawer. If you are outfitting a cabinet run in face-frame construction with 4100 series slides, the bracket quantity matches your slide pair count. Confirm your rear panel or nailer depth allows for the bracket before ordering in volume.
Only for face-frame cabinet installations. In a frameless cabinet, the slide mounts directly to the flat interior side panel at both front and rear, so no rear bracket is needed. In face-frame work, the rear bracket is required.
No. The 4101B is non-handed, so the same bracket installs on either side of the drawer opening. One part number is all you need regardless of which side you are mounting.
No. Rear brackets in KV's lineup are series-specific. The 4101B is engineered for the 4100 series; using it with a different series risks a poor fit and an unreliable install.
The bracket screws into the cabinet's back panel or a rear nailer. If your cabinet does not have a substantial rear surface for the screw-on mount, add a nailer before installing the bracket.
A missing rear bracket is the detail that turns a smooth face-frame slide install into a callback. Stock the 4101B alongside your 4100 series slides and every drawer goes in right the first time.
Quantity | Unit Price | Catalog | ||||
|---|---|---|---|---|---|---|
Sold in: 1 Pair |  KV4104B-FRONT Mfr# 4104B | KV Front Face Frame Brackets, Zinc, 4104B |
Sold In: 1 Pair
