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This is a 12 inch full-extension side-mount ball bearing file drawer slide from Knape and Vogt's 8500 series, rated in the 150 lb class per pair. It is built for loaded file and storage drawers in office cabinets, shop cases, and any application where a standard 100 lb cabinet slide would be undersized but a shorter drawer depth is required.
A 12 inch slide fits shallow cabinets, half-depth side units, and base cabinets with restricted interior depth where an 18 or 22 inch slide physically will not fit. The 8500 series brings the same 150 lb class rating it carries in longer lengths down to this compact size, so a shop drawer storing dense hardware, a short lateral file pedestal, or a knee-space cabinet with a hanging-file insert all get the same duty-class slide without a compromise on capacity. The hold-in anti-rebound detent is especially useful in busy office and shop environments where drawers take a push-to-close rather than a careful pull: the detent catches the drawer and holds it in place instead of letting it spring back into the aisle.
The 8500 series is cold-formed steel throughout, with a zinc finish that protects the members through years of daily cycling in an indoor environment. Zinc is the working standard for side-mount ball bearing slides — a functional, durable finish that keeps the steel from oxidizing in typical office or shop humidity. This is not a decorative or stainless finish; it is the right choice for drawers inside cabinets where the slides are mostly out of sight.
The KV 8500 series in a 12 inch length suits cabinet shops and contractors fitting compact office pedestals, shallow storage units, and any short-depth drawer that needs to carry more than a standard cabinet slide allows. It also works as a replacement slide when an existing 12 inch heavy-duty runner wears out and the load class matters. The slide mounts to the drawer side and the cabinet interior with 1/2 inch of side clearance per side — build the drawer box 1 inch narrower than the cabinet opening. In face-frame cabinets, the rear of the slide needs support from matching rear mounting brackets, sold separately; in frameless cabinets it mounts directly to the panel on the 32mm hole pattern.
No. 12 inches is the closed length of the slide. Because this is a full-extension slide, the drawer member travels approximately the full slide length — the whole drawer clears the cabinet face — but slide length and travel are two separate facts.
The 8500 series is rated 150 lb per pair, about 50 percent above the standard cabinet class. The profile is taller and built heavier to handle file and storage loads that would exceed what a typical kitchen or office cabinet slide is designed for.
No. The hold-in anti-rebound detent is a mechanical catch that holds the drawer closed and prevents it from bouncing back open. There is no damper and no spring assist — the drawer stays wherever it is placed and does not pull itself shut.
No. The 8500 series is non-handed, so both slides in the pair are identical. Order one pair per drawer regardless of which side each slide ends up on.
Yes. In a face-frame cabinet, the rear of the slide cannot rest on the cabinet side directly. You will need matching KV rear mounting brackets to support the back end of the slide. These are sold separately and are series-specific.
When the drawer is short and the load is real, the KV 8500 series in 12 inches delivers the file-drawer class rating and full access without asking you to retrofit a longer cabinet to make it fit.
Sold In: 1 Set
