Satin Nickel Tulip Tubular Passage Door Knob No Lock
- Product Information
Standard Specs & US Door Prep Dimensions
Door Thickness
Standard US residential doors are either 1 3/8 inches (interior) or 1 3/4 inches (exterior) thick. Standard hardware prep requires a 2 1/8-inch cross-bore hole through the door face, a 1-inch latch hole in the door edge, and a latch backset of either 2 3/8 or 2 3/4 inches.
Bore Hole
A 2 1/8-inch diameter hole is drilled through the face of the door where the handle or lockset sits.
Edge Hole
Cross-bore: A 1-inch hole drilled through the edge of the door into the borehole, designed to hold the latch bolt.
Faceplate
Latch Faceplate: The rectangular plate on the door edge comes in either square corner or round corner (usually 1/4-inch radius) styles
Backset
Backset: The distance from the edge of the door to the center of the 2 1/8-inch borehole. Common measurements are 2 3/8 inches (standard for interior) and 2 3/4 inches (standard for exterior).
Installation Reference Drawings
Download Full Installation Template PDF
Finishes & Color Options
Brush Stainless Steel
Soft brushed stainless steel matte surface, fingerprint resistant, scratch resistant, matches modern minimalist interior door hardware, stable electroplated layer for long service life.
Matt Black
Uniform matte black coating, non-reflective, industrial & modern farmhouse style, anti-fade and easy daily cleaning without visible fingerprints.
PVD Polished Brass
Bright high-gloss PVD polished brass finish, ultra wear-resistant, corrosion resistant, luxury bright golden tone for high-end residential decoration.
Antique Bronze
Vintage dark antique bronze texture, hand-worn retro effect, perfect match for traditional, farmhouse and vintage wooden interior doors.
Antique Copper
Reddish vintage antique copper textured plating, rustic industrial aesthetic, warm retro tone fits cottage and antique style door sets.
Function Options
Entry
Entrance lock for exterior doors, lock/unlock from outside with key, internal turn button for locking, suitable front entry doors with security demand.
Privacy
Bathroom & bedroom lock, internal locking button, external emergency slot release for accidental lockout, no exterior key cylinder.
Passage
Non-locking hall/closer door set, free access both sides all time, no lock mechanism for traffic passage doors.
Dummy
Fixed decorative knob without internal lock/latch, only for matching double door inactive side or cabinet decoration.
Latch & Strike Plate Options
G3LS01 Square corner Latch
Width 1"× Length 2-1/4" ( W25.4×L57mm) ,Plate Thickness:1.2mm Adjustable 60/70 mm Backset 75 Open Degree.
G3LR01 Radius corner Latch
Width 1"× Length 2-1/4" ( W25.4×L57mm) ,Plate Thickness:1.2mm Adjustable 60/70 mm Backset 75 Open Degree.
G3LD01 Drive In Latch
Outside Dia 26mm Adjustable 60/70 mm Backset 75 Open Degree.
D01 D shape Strike
Size Width 1-1/2"× Length 2-1/4" (39.5×57mm) Thickness 1.2 mm .
T01 T shape Strike
1-1/2"×2-3/4" (38×70mm) Thickness 1.2 mm optional.
C01 Circular Strike
Circular shape strike plate for matching round edge door frame installation.
Complete Components List
Dust Box
Plastic Dust Box: It is inserted directly into the hole bored into the wooden door frame, right behind the metal strike plate. It prevents wood shavings, dust, or insulation from entering the latch cavity.
Mounting Screws
Tightening these screws clamps the inside and outside knobs tightly against both faces of the door, keeping the lock assembly rigid and stable so it doesn't wobble when turned.
Wood Screws
Two of these screws are used on the edge of the door to securely fasten the faceplate of the spring latch mechanism into the recessed wood cutout.The remaining two screws are used on the door frame (jamb) to firmly anchor the metal strike plate (and the plastic dust box behind it) into the wood, ensuring the door catches and locks securely.