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This is a 30 inch over-travel side-mount ball bearing drawer slide from Knape and Vogt's 8500 series, rated in the 150 lb class per pair for file drawers, deep storage, and lateral cabinets where a standard 100 lb cabinet slide falls short.
Lateral file cabinets and deep storage drawers are the natural home for this slide. At 30 inches, the cabinet member spans a deep drawer box while the over-travel carries the drawer one inch past the slide's nominal length — enough to clear a counter overhang or a thick face frame and put the rear hanging folders within reach without leaning over the front. The hold-in detent matters here too: a file drawer full of folders has real momentum when pushed shut, and the anti-rebound catch stops it from drifting back open. For shop storage drawers, tool chests, and institutional casework in the same depth range, the 150 lb class rating covers loads that would stress an ordinary cabinet slide.
The 8505 series is built from cold-formed steel with a zinc finish for long-term indoor corrosion resistance. Zinc is the segment's workhorse finish: functional, durable, and largely out of sight once the drawer is installed beside the slide. The quick-disconnect drawer members lift the drawer free without tools when the slide is extended, which matters on deep 30 inch drawers that are heavy to manage during installation or removal. Side clearance is 1/2 inch per side, consistent with the standard side-mount ball bearing format.
Cabinet shops building lateral file furniture, commercial casework specifiers, and contractors fitting out office storage all reach for the 8500 series when the drawer is deep and the load is real. The Bulk-Pack format suits volume orders: buying in quantity makes sense when an office project has twelve lateral file drawers to outfit or a shop build calls for consistent hardware throughout. KV recommends a maximum drawer width of 30 inches for this over-travel model, which covers the standard lateral file opening cleanly. For installs in face-frame cabinets, rear mounting brackets are required at the back of each slide — these are sold separately and are series-specific to the 8500 line.
It is in addition to full extension. The drawer first travels the full 30 inch slide length, then continues one additional inch past that point. The total travel is approximately 31 inches, which is what clears an overhang or thick face frame.
No. The hold-in anti-rebound detent is a mechanical catch that keeps the drawer in the closed position and prevents bounce-back after a firm close. There is no damper and no spring pull — the drawer does not slow down near close, it simply stays put once there.
Knape and Vogt recommends a maximum drawer width of 30 inches for the 8505 over-travel model at this slide length.
No. The 8505 is non-handed — the same slide installs on either side of the drawer. Order the quantity of pairs your drawer count requires.
No. Face-frame installations require rear mounting brackets to support the back end of the slide, and these are sold separately. Use brackets matched to the 8500 series — rear brackets from other KV series or other brands are not interchangeable.
When the drawer is 30 inches deep, loaded with files or heavy contents, and needs to clear what's above it, the KV 8505 series at this length covers all three demands in one part number.
Sold In: 5 Set
