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Knape and Vogt 20 inch over travel drawer slide gives a file drawer extra extension beyond full travel, which opens access to the back of the drawer in cabinets where full reach is important. This 8505 Series side mount ball bearing design positions the slide on the drawer sides, which suits typical file drawer constructions in commercial and shop cabinetry. The slide is unhanded, so one model number 8505P 20 covers both left and right, which simplifies stocking for repeat work. A hold-in anti-rebound feature keeps the drawer in the closed position, which reduces nuisance opening in normal cabinet use. Made in USA construction supports projects where domestic sourcing is specified. An anochrome finish provides a neutral appearance that blends with common cabinet materials, which helps the slide disappear visually once installed.
This 8505 Series model is a side mount drawer slide, which means it fastens directly to the drawer side and cabinet side panels. The recommended fasteners are #7 x 5/8 inch Phillips pan head screws, which match the slide hole sizing and support secure attachment in typical cabinet materials. Progressive movement on ball bearings distributes motion across the members as the drawer opens, which can help maintain alignment when the drawer is fully extended. The retainer holds 3 bearings per inch of race, which supports smooth and quiet motion along the travel path. Quick disconnect drawer members interact with the cabinet members through factory-attached release clips, which streamlines the step of hanging and removing drawers during fitting.
The KV Model 8505 in a 20 inch length works in file drawers where over travel is desired to expose rear folders, which supports filing access in deeper cabinet cases. Its role as a side mount ball bearing file drawer slide fits the Side Mount Drawer Slides product class, which matches standard case construction in many woodworking shops. The unhanded design lets the same slide serve both left and right drawer sides, which simplifies layout in banked file cabinets. An anochrome finish presents a neutral metallic appearance, which coordinates with typical drawer hardware used in office and commercial interiors. The 32 mm pattern supports cabinets built on a system drilling line, which is common in production environments relying on repeatable hole spacing. A height of 3-51/64 inches gives the slide a substantial mounting profile, which helps support the vertical load of a filled file drawer along the case side.
The hold-in anti-rebound feature keeps the drawer closed at the end of travel, which helps prevent a file drawer from drifting open after use in a busy workspace. Over travel extends the drawer slightly beyond full extension, which improves visibility and reach to files at the back without changing the cabinet front. Progressive movement on ball bearings means the ball retainers engage in a sequence as the drawer opens, which can provide a consistent feel throughout the stroke rather than a sudden shift as sections engage. The retainer holding 3 bearings per inch of race spreads the load across multiple contact points, which supports smooth motion when drawers carry typical file weights. Positive in and out stops define the end positions, which helps protect both the slide members and the cabinet from being forced past their designed travel. Factory-attached drawer release clips with quick disconnect drawer members reduce handling steps during installation and later servicing, which is useful when adjusting drawer fronts in a bank of cabinets.
The 8505P 20 is a side mount ball bearing file drawer slide, which suits file drawer applications where lateral mounting to the drawer sides is standard.
The specified 1/2 inch plus 1/32 inch minus 0 inch side clearance per side defines the gap between drawer and cabinet, which guides drawer width during construction.
The hold-in anti-rebound feature keeps the drawer in its closed position at the end of travel, which helps reduce unintended opening during everyday use.
Progressive movement on ball bearings coordinates the slide members as the drawer opens, which supports smoother motion along the full extension path.
The 32 mm pattern aligns with system drilling layouts, which integrates the slide into line-bored cabinets that follow metric hole spacing.
The 8505P 20 uses recommended #7 x 5/8 inch Phillips pan head screws, which match the slide holes and provide appropriate engagement in common cabinet materials.
The Knape and Vogt 20 inch over travel drawer slide 8505P 20 combines side mount installation, progressive ball bearing movement, and a hold-in anti-rebound feature, which together support file drawer projects needing controlled travel and smooth operation. Its specified 1/2 inch side clearance, defined height, and 32 mm pattern give clear layout parameters, which fit well into both custom and system cabinet work. For projects specifying KV Model 8505 made in USA with an anochrome finish, this slide aligns with those requirements and supports consistent results across multiple drawers.
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