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This is a 42 inch full-extension side-mount ball bearing drawer slide from Knape & Vogt's 8900 series, rated 500 lb per pair, with a standard-motion zinc-finished steel body sized for industrial, shop, and commercial drawer applications where the load far exceeds the standard cabinet class.
A 42 inch slide at the 500 lb class is not a kitchen product. It belongs under machine drawers, tool chests, server infrastructure, parts storage, and commercial workbenches where the slide must carry real weight through thousands of cycles. At this length, even a moderately loaded drawer can approach the limits of a standard 100 lb cabinet slide — the 8900 series leaves that ceiling far behind. Full extension means the back of a deep, 42 inch drawer comes all the way out to the cabinet face, so there is no digging for parts at the rear. Standard motion suits these environments well: in a shop or industrial setting, the drawer staying put is often more useful than any spring or damper trying to move it.
The 8900 series is built from steel members with a zinc finish — the working standard for heavy-duty side-mount slides. Zinc plating provides solid indoor corrosion resistance without adding the cost of stainless. This is a functional, utilitarian finish on a slide that sits beside the drawer box and is largely out of view in service. It is not a decorative finish and is not rated for outdoor, marine, or washdown environments. For those applications, a stainless steel slide is the correct choice.
The 8900B 42 is the right slide when three conditions come together: the drawer is long, the load is heavy, and the application is indoors. Commercial kitchen drawers loaded with heavy equipment, industrial parts drawers, server rack pull-outs, and shop tool-storage units all fit that profile. The 3/4 inch side clearance per side is wider than the 1/2 inch standard for this segment — plan the drawer box width accordingly. The slide is non-handed, so one part number covers both sides of the drawer, which simplifies procurement on volume orders. Bulk-Pack delivery keeps the per-unit cost down for shops and integrators ordering in quantity.
No. Most standard KV side-mount slides use 1/2 inch side clearance. The 8900 series requires 3/4 inch per side, so the drawer box must be built 1-1/2 inches narrower than the cabinet opening — not the 1 inch reduction that applies to standard-clearance slides.
42 inches is the closed slide length. Because this is a full-extension slide, the travel is approximately that full length, bringing the drawer completely clear of the cabinet face. Slide length and travel are the same ballpark on a full-extension model — but they are still two separate facts.
No. The 8900 series is a standard-motion slide with no closing mechanism. The drawer rides the bearings and stays wherever it is left. If a closing feature is required, a different series is the correct choice.
No. The design is non-handed — both slides in the pair are identical, and either one fits either side of the drawer.
Bulk-Pack means the slides ship loose in a carton rather than in individual retail packaging. It is the trade format for shops and integrators ordering in volume. Confirm the sold-as unit — pair or each — at checkout to order the right quantity for your drawer count.
When the drawer is long, the load is heavy, and the finish needs to hold up through years of indoor use, the KV 8900 series in zinc delivers the capacity, the reach, and the straightforward side-mount geometry to get the job done.
Sold In: 1 Set
Quantity | Unit Price | Catalog | ||||
|---|---|---|---|---|---|---|
Sold in: 4 Set |  KV8900B-10 Mfr# 8900B 10 | KV 8900 4-Pair Box 10" Side Mount Full Extension 500 lb Ball Bearing Drawer Slide, Zinc, 8900B 10 | ||||
Sold in: 4 Set |  KV8900B-12 Mfr# 8900B 12 | KV 8900 4-Pair Box 12" Side Mount Full Extension 500 lb Ball Bearing Drawer Slide, Zinc, 8900B 12 | ||||
Sold in: 1 Set |  KV8900B-44 Mfr# 8900B 44 | KV 8900 44" Side Mount Full Extension 500 lb Ball Bearing Drawer Slide, Zinc, 8900B 44 | ||||
Sold in: 1 Set |  KV8900B-40 Mfr# 8900B 40 | KV 8900 40" Side Mount Full Extension 500 lb Ball Bearing Drawer Slide, Zinc, 8900B 40 | ||||
Sold in: 1 Set |  KV8900B-48 Mfr# 8900B 48 | KV 8900 48" Side Mount Full Extension 500 lb Ball Bearing Drawer Slide, Zinc, 8900B 48 | ||||
Sold in: 1 Set |  KV8900B-60 Mfr# 8900B 60 | KV 8900 60" Side Mount Full Extension 500 lb Ball Bearing Drawer Slide, Zinc, 8900B 60 |
