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This is a 12 inch full-extension side-mount ball bearing file drawer slide from Knape & Vogt's 8500 series, rated 150 lb per pair with a hold-in anti-rebound detent that keeps a loaded drawer from bouncing back open after it is pushed shut.
Most file drawer slides ship in 18 to 24 inch lengths, so the 12 inch length is a deliberate choice for compact applications: shallow upper cabinet drawers, pedestal file units in tight offices, and utility drawers in roll-around shop carts where interior depth runs short. At 12 inches, the slide fits cabinets where a longer slide simply will not clear the back panel. Full extension still brings the entire drawer to the face, so a 12 inch drawer opens completely despite the compact format. Pair one of these with a shallow drawer box built for the 150 lb duty class, and the load capacity far exceeds what a standard kitchen-grade slide can manage at this length.
The slide is formed from steel and finished in zinc, the segment's standard for indoor corrosion resistance. Zinc is a working finish, not a decorative one — it protects the steel members through years of repeated cycling without drawing attention in the cabinet interior. The 8500 series runs on progressive ball bearing movement: the bearing load distributes across the raceway travel rather than concentrating at the ends, which matters most on a heavily loaded drawer that gets opened and closed many times a day. The slide mounts on 1/2 inch of side clearance per side, consistent with standard side-mount ball bearing practice.
Choose the 8500 series at 12 inches when two conditions are both true: the drawer carries more than a standard cabinet slide is rated for, and the cabinet interior is too shallow for a longer slide. Office pedestals, compact filing units, and short-depth storage drawers in a shop or utility room are the natural home for this SKU. The non-handed design means every slide in a bulk carton can go to any drawer position without sorting. For face-frame cabinets, add the matching KV rear mounting brackets — sold separately and series-specific — to support the back end of the slide where the face-frame offset leaves a gap.
No. The hold-in anti-rebound detent is a mechanical catch that keeps the drawer from bouncing back open once it is pushed shut. There is no damper and no spring assist — this is not a soft-close or self-close slide.
The load rating, extension type, detent, and bearing system are the same across the 8500 series. The 12 inch length simply fits shallower cabinets where an 18 or 22 inch slide would run out of room before the back panel.
No — the design is non-handed. Both slides in the pair are identical, and either one fits either side of the drawer.
Yes. In a face-frame cabinet the slide's back end needs support. Add the matching KV rear mounting brackets — they are sold separately and are series-specific to the 8500 line.
Bulk-Pack means the slides ship loose in a carton rather than in retail poly bags. It is the format for shops and contractors pulling from bin stock rather than opening individual packages.
The 8500 series at 12 inches delivers the 150 lb class load rating and full-drawer access of a file-grade slide in the footprint that short-depth cabinets actually have — a combination that the standard kitchen class cannot match at this length.
Sold In: 5 Set
