Knape And Vogt 20 Inch Drawer Slides For File Use

Knape and Vogt 20 inch drawer slides deliver full extension travel, so file drawers open completely and expose the full drawer length for easier access to files and contents during daily use. The KV Model 8520 design uses side mount ball bearing construction, which supports smooth drawer motion along the cabinet sidewalls in typical file pedestal and storage layouts. A hold-in feature with anti-rebound control keeps the drawer in the closed position at the end of travel, which reduces nuisance bounce-back in busy office or shop environments. Progressive movement on ball bearings coordinates both members as the drawer opens, which produces steady motion and helps loaded drawers feel controlled instead of jerky. The 8520P 20 slide is unhanded, so the same member works on either side of the drawer, which simplifies planning and reduces part variation on installation jobs.

Key 8520P 20 Details That Support Your Work

• The full extension file drawer slide design allows the drawer to travel its entire length, improving visibility and reach for files in the back of the drawer during regular access and reorganization.
• The side mount drawer slide format positions each member on the cabinet sides, preserving the drawer width and supporting common file drawer box construction methods used in pedestal and casework builds.
• The hold-in feature with anti-rebound action keeps the drawer seated at the closed position, which helps drawers stay shut after closure in areas with frequent movement around cabinets.
• Progressive movement on ball bearings coordinates the slide members during travel, providing smoother motion that helps drawers carrying files or supplies feel more controlled when opened or closed.
• The unhanded quick disconnect drawer members allow either side to use the same part, reducing sorting on site and simplifying drawer removal when casework needs service or adjustment.
• The positive in and out stops limit travel at both ends, which protects the slide from over-travel and helps keep drawer alignment consistent over repeated open and close cycles.

Side Mount Fit, Clearance, And Mounting Pattern

The 8520P 20 slide is specified as a side mount model, which positions each member along the cabinet side panels for typical file drawer applications. Side clearance is stated as 1/2 inch plus 1/32 inch minus 0 inch on each side, which defines the gap between drawer box and cabinet and guides box sizing for smooth travel. The slide height is 3-51/64 inches including the quick disconnect rail, which establishes the minimum drawer side height required to fully support the member along its length. A 32 mm pattern is identified, giving a regular hole spacing reference that aligns with common system-bored casework and speeds layout when installing slides into pre-drilled cabinet sides.

Using KV 8520 Full Extension Slides In Projects

Where These 8520P 20 Drawer Slides Are Applied

The KV Model 8520 full extension file drawer slide is described as a file drawer slide, so it is suited for drawer applications that must carry files or similar stored materials in cabinets and pedestals. The zinc anochrome finish, identified as an available finish for this 8520 series, gives the steel members a coated surface that supports typical interior cabinet environments where metal hardware is shielded from direct exposure. The slide is noted as made in USA, which identifies its manufacturing origin for projects that track domestic product sourcing. The high-strength steel alloy construction supports the ball bearing members and extended Z-plate, which provides structural support under file drawer loads while the drawer is extended during access.

Why These Progressive Movement Details Matter

The 8520P 20 slide uses progressive movement on ball bearings, which means the ball bearing sets coordinate the members through travel and support smoother motion when drawers are loaded with files. The metal ball retainer is described as holding 3 bearings per inch, which increases the bearing contact points and helps distribute load along the slide for steady operation. The extended Z-plate detail provides added structural engagement between slide members, which benefits drawer stability when the drawer is fully extended. Direct access mounting holes in the slide body simplify running fasteners into cabinet sides, which keeps installation steps straightforward where drill access is limited. A secondary quick disconnect lock is noted, so the quick disconnect drawer members can be separated in a controlled way for drawer removal and later reinstallation. Recommended fasteners are described as #7 x 5/8 inch Phillips pan head, giving a specific screw size and head style that matches the mounting holes and supports secure fastening into cabinet substrates.

Common Questions About 8520P 20 File Drawer Slides

Selecting KV 8520 Slides For File Drawers

The 8520P 20 Knape and Vogt full extension file drawer slide pairs a side mount layout with progressive ball bearing movement, which serves file drawers needing full travel and controlled motion. The defined side clearance, slide height, 32 mm pattern, and recommended #7 x 5/8 inch Phillips pan head fasteners give clear reference points for cabinet and drawer design. When a project calls for a made in USA file drawer slide with hold-in anti-rebound control and unhanded quick disconnect members, this KV 8520P 20 configuration supports a consistent installation approach across matching file drawer runs.