CompX National 8040, Sliding Door Lock, No Bore, Bright Nickel, KD MKD

CompX National Sliding Door Lock For Glass Panels

CompX National sliding door lock C8040-MKKD-14A is a bypassing and showcase door lock that secures sliding glass doors while supporting a snug fit on glass 1/4 inch and thinner, which helps keep light showcase doors positioned where you need them.

The ratchet bar on this sliding glass door lock has a plastisol dip coating on the area that gets installed onto the glass, so it cushions the contact against the glass and helps reduce glass rattling while the lock is in place.

This sliding door lock uses a wood ratchet bar that is available special order, giving flexibility for jobs where a wood bar is preferred in the casework or fixture design.

The product is key different master keyed, described as KYD DIFF MSTRKYD, so each lock can use its own key while still working into a master key system, which matters where multiple showcases or cases must be managed together.

The lock is finished in bright nickel, so it presents a clean metallic look that suits many display and fixture environments where visible hardware must stay consistent across doors.

Key Details That Matter On Sliding Glass Jobs

• The ratchet bar with plastisol dip coating on the glass contact area cushions the bar against the glass, which reduces rattling during door movement and supports a snug, stable fit on sliding panels.
• The plastisol-coated ratchet area is designed for glass 1/4 inch and thinner, so when working with common showcase glass thicknesses the coated surface helps grip consistently without metal bearing directly on the glass edge.
• The new set screw can be tightened down against the glass with the screw pushing on the plastisol coating, which holds the lock position and eliminates the tendency for the lock to droop down when in the locked position.
• Felt material is applied to the back of the lock body, creating a soft interface between the lock body and the glass door that cuts down on rattling noises and vibration during sliding or when doors are contacted.
• The key different master keyed configuration, described as KYD DIFF MSTRKYD, means each unit can have a different key while still fitting a master system, which streamlines key control on multi-door showcases and display runs.

Installation Details For Sliding Glass Door Fit

This sliding glass door lock is described as a sliding door lock with no bore, so it works on the glass without a drilled cylinder hole, which helps when working on existing showcase doors already tempered and finished.

The ratchet bar with plastisol coating installs onto the glass, so the coated contact surface engages the edge while the set screw presses into the plastisol, letting the installer secure the lock height and orientation along the door edge.

The felt material, applied to the back of the lock body, sits between the metal body and the glass door, so once the lock is installed it reduces direct metal-to-glass contact and helps the door slide without metal chatter against the lock.

The wood ratchet bar is described as available by special order, which allows projects using wood structural members at the door edge to match the ratchet interface to the casework material while still using the same lock body.

Using This Bright Nickel Sliding Door Lock In Work

Where This Sliding Glass Door Lock Fits Best

This CompX National sliding door lock belongs to the bypassing and showcase door locks class, so it is oriented toward sliding display doors where two panels bypass each other and need a compact locking point near the door edge.

The ratchet bar with plastisol dip coating on the glass contact area is aimed at glass 1/4 inch and thinner, so it fits typical showcase and display cases using that glass range, helping the lock grip without direct metal-to-glass contact.

The felt material supplied for the back of the lock body is intended to be applied between the lock body and the glass door, so in a showcase run it helps quiet the doors when customers move panels, which is important in quieter retail spaces.

The bright nickel finish keeps the lock body visually consistent with other bright metal hardware, so in installations where hinges, pulls, or tracks share a similar tone, this lock can sit in the same sightline without drawing unnecessary attention.

The classification as a lock for bypassing and showcase doors means it suits cases where doors slide past each other rather than swinging, so it supports layouts using track systems and narrow stiles where a compact surface-mount style lock is needed.

Details That Support Repeatable Results And Alignment

The new set screw design that tightens down against the glass, while pushing on the plastisol coating, lets the installer lock in the vertical position of the bar so the lock stays aligned with mating parts and does not droop during daily use.

Because the plastisol coating sits between the set screw force and the glass, load from tightening the screw spreads through the coating layer, supporting a dependable grip along the glass edge instead of a direct point load on the glass.

The felt material on the back of the lock body adds a consistent buffer thickness, so when several locks are installed along a run of sliding glass doors the doors seat against the locks with similar spacing, which supports uniform door gaps.

The no bore description on this sliding door lock means the installer sets the lock on the glass surface instead of cutting a cylinder hole, which can streamline replacement of existing non-bored locks on tempered showcase panels.

The key different master keyed configuration, KYD DIFF MSTRKYD, supports repeatable key control where many locks are used, because each C8040-MKKD-14A can be assigned a distinct key within a shared master system for long-term management.

Common Questions About This Sliding Glass Door Lock

Choose This Lock For Sliding Glass Door Control

The CompX National sliding door lock C8040-MKKD-14A combines a plastisol-coated ratchet bar, a new set screw that prevents drooping, and felt on the lock body, so sliding glass doors 1/4 inch and thinner stay quieter and more secure in use.

The bright nickel finish and key different master keyed configuration support multi-door showcase runs where appearance and keyed control must match, so this lock aligns with display hardware standards on professional woodworking and fixture projects.