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CompX National 8040 disc tumbler sliding door lock gives sliding glass doors a locking point while fitting the bypassing and showcase door lock category, so it suits display and similar glass door applications where controlled access is needed. The bright nickel finish identifies this lock as a metal-bodied component with a clean look, which supports professional installations where appearance matters alongside function. A ratchet bar with plastisol dip coating covers the area that contacts the glass, so the coated surface grips instead of metal-on-glass contact, reducing rattling and promoting a snug fit when the lock is clamped in place. This ratchet bar is designed for glass 1/4 inch and thinner, which defines the door thickness range this lock is intended to clamp onto in typical showcase or bypass layouts. The design centers on a disc tumbler lock mechanism, which provides the key-based locking action installers expect in this CompX National part C8040-C415A-14A using key number 415.
The ratchet bar with plastisol dip coating defines how this CompX National sliding glass door lock clamps onto the glass, because the coated bar bears against the panel while accommodating glass 1/4 inch and thinner. The new set screw works by tightening down against the glass through the plastisol layer, so the load spreads through the coating instead of bare metal, which helps keep the lock body from drooping when in the locked position. Felt material, intended for the back of the lock body, establishes a soft interface between lock and glass, limiting vibration where the body rests on the sliding panel during door movement. The bright nickel finish and bypassing and showcase door lock classification identify this C8040-C415A-14A lock as suited to sliding glass installations that benefit from a clamp-on body with a defined thickness range.
This CompX National 8040 disc tumbler sliding door lock is specified for bypassing and showcase door lock applications, so it fits use on sliding glass display or similar doors where panels move past each other. The ratchet bar with plastisol dip coating focuses clamping on glass 1/4 inch and thinner, which targets common showcase glass thicknesses and helps the body seat correctly on those panels. Bright nickel finish supports use in visible installations, because the metal surface presents a consistent appearance alongside other bright cabinet or display hardware. The felt material applied to the back of the lock body provides a buffer where the body contacts the sliding door surface, helping the lock sit quietly as the doors glide along a track in retail or shop settings. Combined with key 415 and disc tumbler construction, this part C8040-C415A-14A forms a keyed locking point on the sliding glass panel itself.
The plastisol dip coating on the ratchet bar affects daily function by gripping the glass more evenly, which stabilizes the lock position when the door is opened and closed many times. When the new set screw is tightened against the glass through this plastisol layer, the screw force presses into a cushioned surface, which reduces localized point pressure and keeps the lock from drooping downward while locked. This behavior matters wherever the lock must stay aligned with a strike point on a frame or adjoining panel, because the body position remains more consistent over time. Felt material installed on the back of the lock body mitigates rattling between the lock and the glass door, which helps maintain a quieter case or cabinet environment around the bypassing doors. The C8040-C415A-14A identification and sliding glass door lock, key 415 designation give installers a clear reference to match keyed access across multiple glass door locations in a project.
This CompX National 8040 disc tumbler lock is described as a bypassing and showcase door lock, so it is intended for sliding glass doors used in display and similar bypass applications.
The sliding glass door lock ratchet bar with plastisol coating is specified for glass 1/4 inch and thinner, defining the thickness range where it can clamp effectively on the panel.
The plastisol dip coating on the ratchet bar cushions the contact area on the glass, which reduces rattling and helps provide a snug fit when the lock is tightened onto the sliding panel.
The sliding glass door lock set screw tightens down against the glass through the plastisol coating, which improves grip and prevents the lock body from drooping in the locked position.
The felt material on the back of the lock body creates a soft layer between the lock and the glass door, helping eliminate rattling where the body meets the panel during door movement.
The sliding glass door lock is identified as key 415, so its disc tumbler core is matched to that key number for consistent keyed operation across locks using the same reference.
The CompX National 8040 disc tumbler sliding glass door lock, part C8040-C415A-14A, pairs a bright nickel body with a plastisol-coated ratchet bar designed for glass 1/4 inch and thinner, giving installers a clear thickness target. The new set screw acting through the plastisol layer helps the lock resist drooping in the locked position, supporting stable alignment on bypassing or showcase doors. Felt material fitted to the back of the lock body further reduces rattling between lock and glass, useful where displays operate in customer-facing spaces. For projects calling for a keyed 415 sliding glass solution within the bypassing and showcase door lock class, this configuration provides a defined clamping method around the glass panel.
Sold In: 1 Each
Quantity | Unit Price | Catalog | ||||
|---|---|---|---|---|---|---|
Sold in: 1 Each |  NLD8799-415 Mfr# M5-0687-160-415 | Disc Tumbler Lock Cut Key, Keyed to KA415 Key |