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The Knape & Vogt 8500 series is a 22 inch full-extension side-mount ball bearing slide rated in the 150 lb class per pair, purpose-built for file drawers, lateral files, and heavily loaded storage drawers that exceed the reach of standard 100 lb cabinet slides. This is the poly-pack version, with mounting hardware included.
A standard 100 lb cabinet slide is adequate for dishes and pantry goods, but a lateral file drawer loaded with hanging folders and binders can exceed that rating in regular use. The 8500 series steps into that gap. It is the right choice for office file cabinets, legal-size lateral files, plan drawers, and any deep utility drawer where the contents add up fast. KV rates this series for drawers up to 36 inches wide, so it handles both standard and wide lateral file configurations.
The slide members are cold-formed steel with a zinc finish — the working standard for side-mount ball bearing slides in office and shop environments. Zinc protects the steel through years of daily cycling indoors. This is a functional finish on a slide that sits beside the drawer box; it is not a decorative coating and is not rated for wet or outdoor use.
Cabinet shops building office furniture, contractors fitting out commercial file rooms, and facility managers replacing worn slides in existing lateral file units are the core buyers here. The 22 inch length suits a standard drawer depth in most lateral file cabinets. The non-handed design simplifies volume orders — one part number covers both sides of every drawer. Install one pair per drawer; add the series-matched KV rear mounting brackets when working in face-frame cabinet construction, sold separately.
No. The hold-in anti-rebound detent is a mechanical catch that keeps the drawer shut and prevents it from bouncing back open. There is no damper and no spring assist — the drawer does not close on its own and does not slow down near the end of travel. This is a standard-motion slide for buyers who need the drawer to stay put, not to close quietly.
Not exactly. Full extension means the drawer member travels approximately the full slide length, bringing the entire drawer out past the cabinet face. The 22 inch figure is the closed slide length, matched to your drawer depth and cabinet interior — not a travel measurement standing on its own.
The 8500 series requires 1/2 inch of side clearance per side. Build the drawer box 1 inch narrower than the cabinet opening to accommodate both slides. The non-handed design means both slides use the same clearance on each side.
The poly-pack contains one pair of slides with mounting hardware. For face-frame cabinet installations, KV rear mounting brackets are required and sold separately — they are series-specific to the 8500 line.
You can, though the 8500 series is engineered and priced for file and heavy storage applications. For standard kitchen drawers in the 75–100 lb class, the KV 8400 series is the more economical fit. Choose the 8500 when the load or drawer width pushes past what the standard class handles.
When the drawer carries files, binders, or anything else that makes a standard slide feel undersized, the KV 8500 series in 22 inches gives you the load class, the full access, and the stay-closed reliability to keep the job moving.
Sold In: 1 Set
