KV8525 18" Over Travel Hold-in anti-rebound Ball Bearing File Drawer Slides, Unhanded Side Mount Zinc Poly-Pack - 8525P 18

18 Inch Over Travel Drawer Slide For File Storage

18 inch over travel drawer slide describes this Knape and Vogt 8525P 18 side mount ball bearing file drawer slide, so the drawer can travel 1-1/4 inch beyond full extension for easier access to files at the back of the drawer. The slide is part of the KV Model 8525 series, so it follows a known performance pattern when matching to existing file drawer hardware in the same series. This slide is classified as a side mount drawer slide, which places the members on the cabinet sides to keep file drawers guided and supported along vertical casework panels. The product is an unhanded side mount slide, so the same part works on either side of the drawer, simplifying layout and stocking for repeat installations.

File Drawer Slide Details That Support Daily Use

• The 1-1/4 inch overtravel feature moves the drawer past the cabinet face, so hanging files at the back of a file drawer can be viewed and reached without leaning into the cabinet.
• The hold-in feature is designed to prevent bounce back, so the drawer stays fully closed against the case when pushed in, which helps keep fronts aligned in rows of file cabinets.
• Positive in and out stops are built into the slide, so the travel limits are controlled at both ends, helping protect drawer members from being pulled apart during use.
• A metal ball retainer holds 3 bearings per inch, so the progressive movement on ball bearings can stay smooth and quiet while the file drawer is being opened and closed.
• The slide uses an extended Z-plate and high-strength steel alloy construction, so the assembly can support file drawer loads in metal or wood cabinetry applications.
• Direct access mounting holes are provided, so the slide can be fastened through exposed holes without disassembly, which speeds up side mount drawer installation work.

Side Mount Installation And Fastener Interface

The 8525P 18 slide is a side mount ball bearing drawer slide, so it installs against the cabinet side and drawer side rather than underneath, which suits traditional file drawer constructions. The specified side clearance of 1/2 inch plus 1/32 inch minus 0 inch on each side defines the gap between drawer and cabinet, so case openings and drawer widths can be machined to a predictable fit for this model. The height of 3-51/64 inch including the quick disconnect rail establishes the vertical space the slide occupies, so cabinet designers can plan stack spacing and horizontal partitions around that dimension. Recommended fasteners are #7 x 5/8 inch Phillips pan head screws, so installers can select that thread and length when driving into wood drawer sides or cabinet panels.

Using The 8525P 18 Slide In Cabinet Projects

Where This 8525P 18 Drawer Slide Fits Best

The Knape and Vogt 8525P 18 over travel file drawer slide is described as a file drawer slide, so it is suited to applications where drawers carry hanging files in office or storage cabinetry. The 1-1/4 inch overtravel detail on the KV model 8525 series lets the drawer extend beyond the case front, so file rails and back folders clear the face frame or case edge for easier labeling and retrieval. Side clearance set at 1/2 inch plus 1/32 inch minus 0 inch per side gives a clear machining target, so cabinet shops can size drawer boxes and openings for a consistent slide fit across multiple file cases. The height of 3-51/64 inch including quick disconnect rail makes the slide relatively tall, so it can align well under file rails in deeper drawers where vertical support is helpful along the drawer side.

The extended Z-plate structure and high-strength steel alloy noted in the description give the slide a reinforced profile, so it works in file drawers that experience repeated full-travel cycles during office use. Being unhanded, the slide design uses the same member on both left and right sides, so parts can be pulled from a common bin on the job without sorting by hand, which streamlines field installation. The 32 mm pattern is identified as present on the slide, so casework built around a 32 mm system can align mounting holes to line-bored cabinet sides for more predictable screw placement. Non-handed quick disconnect drawer members are specified, so drawers can be separated from the cabinet members by releasing the QD mechanism, which helps during finishing, transport, or service when drawer boxes need to be removed. Progressive movement on ball bearings is described in the features, so the motion transitions along the slide members as the drawer opens, supporting smooth travel across the full extension and overtravel.

Why These Slide Details Improve Workflow

The hold-in feature that prevents bounce back matters when several file drawers sit in the same cabinet run, because closed drawers stay seated at the same depth, helping maintain a neat front line and reducing unintended partial opening. Positive in and out stops protect the slide set during hard pulls or pushes, because the stops define end points that limit travel, which supports longer service in high-use file drawers. The metal ball retainer with 3 bearings per inch distributes load along many ball bearings, so the weight of files transfers smoothly between members during drawer travel, which can reduce racking forces on drawer joints. The high-strength steel alloy works together with the extended Z-plate to create a rigid profile, so side loads from heavy drawers are carried through the slide rather than flexing the case sides.

Direct access mounting holes on the 8525 series mean installers can run #7 x 5/8 inch Phillips pan head fasteners straight through exposed holes, so attachment to drawer and cabinet members goes faster without slide disassembly. The 32 mm pattern also supports repetitive shop work, because boring operations can follow standard 32 mm spacing, then the slide aligns to those rows during assembly. Non-handed quick disconnect drawer members help with final finishing or service, because drawers can be lifted free using the QD release and later re-engaged on the same cabinet members without changing hardware. The unhanded side mount configuration reduces inventory variation, because one 8525P 18 part number serves both sides, which simplifies ordering and stocking for ongoing file cabinet production.

Key Questions About The 8525P 18 File Slide

Selecting This Slide For File Drawer Projects

The Knape and Vogt 18 inch over travel drawer slide 8525P 18 combines 1-1/4 inch overtravel, side mount design, and a file drawer focus, so it suits projects where full file access and controlled travel are priorities. The defined side clearance of 1/2 inch plus 1/32 inch minus 0 inch per side, the 3-51/64 inch height including quick disconnect rail, and the #7 x 5/8 inch Phillips pan head fastener recommendation give clear machining and installation targets. For cabinet shops and installers building or servicing file cabinetry around the KV Model 8525 series, this unhanded slide offers a consistent, series-matched option for drawers that need smooth, guided travel with hold-in control.