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This is a 44 inch full-extension side-mount ball bearing drawer slide from Knape and Vogt's 8908 series, rated 500 lb per pair with integrated hold-in and hold-out detents for drawers that must stay exactly where they are placed.
At 44 inches and a 500 lb rating, this slide belongs on drawers that would overload anything in the standard cabinet class several times over. Think machine shop tool drawers packed with heavy tooling, industrial workbench drawers carrying dense stock, server-room or equipment-rack pull-outs, and heavy utility storage in commercial and institutional settings. The hold-in detent means a loaded drawer does not bounce back open after a firm close — a real concern when the contents shift the center of gravity toward the front. The hold-out detent keeps the drawer fully extended while both hands are occupied, with no need to prop it or wedge it open. Together the two features make this a working slide, not just a heavy-capacity one.
The 8908 series is built from steel members with a zinc finish — the practical, long-service standard for heavy-duty side-mount slides used indoors. Zinc plating protects the steel against the humidity and incidental contact of a busy shop or industrial bay without the cost premium of stainless. This is not a decorative finish and is not intended for wet, washdown, or outdoor environments. The slide is a bulk-pack unit — confirm the pack quantity at checkout and order one pair per drawer.
The 8908 series in zinc is the right call for facilities and shop managers speccing drawers on working equipment, machinists and toolmakers outfitting benches, and contractors or millwork shops building heavy-duty casework for commercial clients. The non-handed configuration simplifies volume orders — one SKU covers all positions on a multi-drawer unit. Face-frame installations require rear mounting support at the back of the slide; add the appropriate series rear brackets, sold separately, and account for the 3/4 inch side clearance per side when dimensioning the drawer box.
Hold-in keeps the drawer closed — it stops a heavy, front-heavy drawer from rebounding open after being pushed shut. Hold-out keeps the drawer at the fully open position so it stays extended hands-free while you work. A normal pull opens the closed drawer; a normal push closes the open one.
The 44 inch measurement is the closed slide length. Because this is a full-extension slide, the drawer member travels approximately that full length, bringing the entire drawer out to the cabinet face — but slide length and drawer travel are two distinct specs.
The 8908 series is a heavy-duty slide with a larger profile than standard 100 lb cabinet slides. It requires 3/4 inch of side clearance per side, so build the drawer box 1-1/2 inches narrower than the cabinet opening total — not the 1 inch reduction used with standard slides.
No. The 8908 series is non-handed — both slides in a pair are identical and either one fits either side of the drawer. Order the quantity of pairs your project requires.
The zinc finish provides corrosion resistance for indoor use. It is not rated for outdoor exposure, wet environments, or washdown applications. For those conditions, specify a stainless steel slide.
When the load is real and the drawer needs to stay exactly where it is put, the 8908 series in zinc delivers the capacity, the full-extension travel, and the dual-detent control to keep a heavy industrial drawer working reliably shift after shift.
Sold In: 1 Each
