Zinc Ball Bearing Drawer Slide For Heavy Storage and File Drawers
This is an 18 inch full-extension side-mount ball bearing drawer slide from Knape and Vogt's 8500 series, rated 150 lb per pair and finished in zinc. It is built for file drawers, heavy storage applications, and any cabinet drawer that needs to stay reliably closed after a firm push.
Key Features
150 lb load class per pair — well above the standard 100 lb cabinet class, sized for file and heavy storage drawers.
Full extension — the entire drawer clears the cabinet opening so rear contents are fully reachable.
Hold-in anti-rebound detent — a mechanical catch keeps the drawer closed and stops it from bouncing back open after a firm shut.
Steel ball bearings in progressive raceways — smooth, consistent travel under a heavy load across years of daily use.
Non-handed design — both slides in the pair are identical; no left or right sorting required at the bench.
Bulk-Pack packaging — loose in a carton, suited to shop and production ordering rather than single-drawer retail packs.
Where This Slide Earns Its Keep
The 8500 series lives in the duty class above a standard kitchen cabinet slide. A lateral file drawer loaded with folders, a shop drawer carrying hand tools, or a utility cabinet stocked with fasteners and hardware can easily push past what a 100 lb slide is rated to handle. The 150 lb per pair rating covers that load honestly, and the hold-in detent means the drawer stays put once closed rather than drifting or bouncing back into the opening. The full-extension design brings the back of the drawer out to the cabinet face, so nothing gets buried at the rear.
Zinc Finish on Steel Construction
The zinc finish is electroplated over cold-formed steel members, providing standard indoor corrosion resistance for the life of the installation. Zinc is the workhorse finish in this product class — a functional, low-profile surface that holds up to daily cycling without standing out beside an open drawer. It blends readily with the painted or natural interiors of utility cabinets, shop storage, and office case goods. This is not a decorative or stainless finish; it is the right choice for indoor work where durability and value matter more than appearance.
Right Application, Right Buyer
Cabinet shops equipping file rooms and office installations will find the 8500 series a reliable step up from the standard kitchen class. Contractors building utility storage, shop cabinetry, or workstation pedestals get a slide that handles real working loads without requiring a heavy-duty specialty slide. The 1/2 inch side clearance per side is the same as standard side-mount ball bearing slides, so the drawer box sizing formula stays familiar. In face-frame cabinets, rear mounting brackets are required to support the back of the slide; those brackets are series-specific and sold separately. The bulk-pack format suits cabinet shops and production runs where ordering by the carton is more practical than retail packs.
Common Questions
Does the hold-in detent soft-close or self-close the drawer?
No. The hold-in anti-rebound detent is a mechanical catch — it keeps the drawer closed and prevents it from bouncing back open, but it does not pull the drawer shut or damp the close. Push the drawer in normally and the detent holds it there.
Is 18 inches how far the drawer opens?
No — 18 inches is the closed slide length, which matches the nominal drawer depth. Because this is a full-extension design, the drawer travels approximately its full length to clear the cabinet opening, but slide length and travel are two separate measurements.
Do I need to order a left-hand and right-hand slide?
No. The 8500 series is non-handed — both slides are identical, and either one installs on either side of the drawer.
What rear hardware do I need for a face-frame cabinet?
Face-frame installations require rear mounting brackets to support the back end of the slide. These brackets are 8500-series specific and sold separately — the slide alone is not enough for face-frame work.
How many slides come in a bulk pack?
The bulk-pack count is not stated in the product data. Contact the sales team or check the item detail at checkout for the carton quantity before ordering for production.
A Dependable Slide for Drawers That Work Hard
When the load outgrows a standard cabinet slide and the drawer needs to stay shut on its own, the Knape and Vogt 8500 series 18 inch zinc slide covers both requirements in a familiar side-mount format that installs without surprises.
