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This is a 20 inch full-extension side-mount ball bearing drawer slide from Knape & Vogt's 8650 series, rated 150 lb per pair with integrated soft-close damping and a zinc finish. It brings a heavy-duty load rating and a quiet, controlled close together in the standard 1/2 inch clearance side-mount format.
A standard 100 lb cabinet slide handles most kitchen drawers comfortably, but it runs out of headroom on a few common jobs: deep pots-and-pans drawers, loaded tool drawers, heavy-duty pantry pull-outs, and shop cabinetry that carries real weight day after day. The 8650 series is the step up — same 1/2 inch clearance and side-mount geometry as the standard class, but with a 150 lb per pair rating that keeps the slide well within its working range under a heavy load. Soft-close is the right feature pairing here because a 150 lb drawer pushed shut with any force can slam hard; the integrated damper catches it in the final inch and closes it quietly regardless of how hard it was pushed.
The 8650 series is steel construction with a zinc finish — the workhorse pairing for side-mount ball bearing slides in residential and light commercial cabinetry. Zinc plating gives the steel members solid indoor corrosion resistance without adding bulk or altering the slide profile. The finish is practical rather than decorative; once the drawer is installed, the slide sits beside the box and stays mostly out of sight. Ball bearings run in full-length raceways for smooth, even travel across the 20 inch length under rated load. This SKU arrives in Bulk-Pack format: pairs loose in a carton, the right format for cabinet shops working through multiple drawers at a time.
Choose the 8650 series when two things are true: the drawer will be loaded beyond the standard 100 lb class, and a quiet close matters. Residential kitchen cabinet shops will find it appropriate for base-cabinet drawers carrying cookware, cast iron, or appliance storage. Shop and garage cabinet builders will reach for it in tool drawers where a heavy roll of items is the norm. The 20 inch length matches drawer boxes built to that nominal depth, and the 1/2 inch side clearance means the drawer box is built 1 inch narrower than the cabinet opening. In face-frame cabinets, rear mounting brackets are required to support the back of the slide; those brackets are sold separately and are series-specific to the 8650. The slide is non-handed, so one part number covers both sides of every drawer.
Per pair — that is the working capacity of the two slides installed together on one drawer. Do not double it by counting each slide separately.
Soft-close uses a damper to slow the drawer over the final inch of travel, settling it shut quietly. Self-close uses a spring or ramp to pull the drawer shut — no damping, so it can still close with a snap under a heavy load. The 8650 is damped soft-close.
20 inches is the closed length of the slide. Full extension means the drawer member travels approximately that full length, bringing the entire drawer box out to the cabinet face — so yes, full access to the back of the drawer. Slide length and travel are distinct specs; full extension is what closes the gap between them.
No. The 8650 series is non-handed, so both slides in a pair are identical. Order one pair per drawer.
Side-mount slides in face-frame cabinets need rear mounting brackets to support the back end of the slide. Those brackets are sold separately and must match the 8650 series — do not substitute brackets from other KV series.
The 8650 series covers the gap between a standard 100 lb soft-close slide and a dedicated file-drawer slide — 150 lb of working capacity with damped closing and a non-handed side-mount format that drops into the same clearance as the rest of the kitchen or shop run.
Sold In: 1 Set
