King Slide 6-Pair Box 12" Soft-Close Full Extension 75 lb Undermount Drawer Slide, Zinc, 280-941

Undermount Drawer Slide For Small Drawers That Demand a Clean Finish

The King Slide 12 inch soft-close full-extension undermount drawer slide is a concealed runner built for compact drawers — spice pull-outs, bathroom vanity drawers, and shallow base cabinets where a handle-less look or a clean interior matters as much as reliable motion. It carries 75 lb per pair, closes on an integrated soft-close damper, and fits both face-frame and frameless cabinets. Drawer sides up to 5/8 inch thick, and the front locking clips are included.

Key Features

• Full extension brings the entire drawer out to the cabinet face so every inch of a small drawer is reachable.
• Integrated soft-close catches the drawer near the end of travel and settles it shut quietly without slamming.
• 75 lb weight capacity per pair handles loaded spice drawers, bathroom organizers, and compact kitchen pull-outs.
• Compatible with face-frame and frameless cabinets so one SKU covers both construction types on the same job.
• Front locking clips included — the fixing hardware ships with the slide, no separate accessory order needed.
• Steel construction with zinc finish for corrosion resistance and years of indoor service.

Where This Slide Earns Its Place

A 12 inch undermount slide is a specialist. It fills the gap where a standard 18 or 21 inch slide is simply too long — narrow bathroom vanities, spice-drawer inserts beside a range, small drawer stacks in a kitchen island, or jewelry drawers in a furniture piece. Because this is a full-extension slide, a 12 inch drawer opens completely to the cabinet face, which matters more in a compact drawer than almost anywhere else: when the box is short, losing the last few inches to a 3/4-extension runner means losing a disproportionate share of usable space. Full extension solves that.

The slide also suits retrofit work. Replacing a worn wooden center runner or a roller slide in an existing small cabinet is straightforward when the new slide fits both face-frame and frameless construction and arrives with its clips in the box.

Build and Finish

The slide is made from steel with a zinc finish — the same functional, corrosion-resistant coating found on the side-mount ball-bearing slides and mounting hardware throughout this catalog. The zinc finish is not decorative; it protects the steel members through years of indoor use. Because the slide mounts fully beneath the drawer box, the finish is hidden in service. The soft-close mechanism is integrated into the slide body, so there is no separate damper unit to source or align.

The 12-1/2 inch nominal length requires a minimum cabinet installation depth of 15 inches. Build the drawer box to the King Slide specification for the 1A68F series: 5/8 inch (16mm) maximum drawer side thickness, correct box width for the series clearance, bottom recess, rear notch, and locking-clip drilling. The supplied front locking clips seat into the underside of the drawer front after the box is hung.

Who Reaches For This Slide First

Cabinet shops running mixed production — some vanity work, some kitchen builds — keep 12 inch undermounts on the shelf for the jobs that a longer slide cannot fill. Designers specifying handle-less bathroom drawers appreciate that a single SKU works across both frameless European boxes and traditional face-frame vanities. Homeowners replacing a stuck or noisy small drawer will find the full-extension travel and included clips straightforward to work with. The 75 lb rating is well above what any typical spice or bathroom drawer will carry, so there is real headroom here for heavier organizer inserts or solid-wood box construction.

Frequently Asked Questions

The Right Concealed Slide for the Smallest Cabinet Openings

When the drawer is compact and the finish has to be clean, this 12 inch full-extension soft-close undermount delivers the concealment, the travel, and the quiet close that short drawers need — clips included, ready to install.