Cal-Royal AMB-30 Summit Series Passage Concealed Screw Leverset

The Cal-Royal AMB-30 is a passage leverset from the Summit Series, with the Amber lever design and a clean concealed-screw rose. Passage means no locking: the lever operates the latch from either side at all times, so the door latches shut but never locks, the right function for closets, hallways, and pass-through doors. The "concealed screw" design is the look you'd pick it for, the mounting screws are hidden behind the square rose for a clean face with no visible fasteners. The AMB-30 is a Grade 3 residential leverset (ANSI A156.2), fits standard door prep, and comes in finishes including satin nickel, oil rubbed bronze, polished chrome, and flat black.

What passage means

This is worth being clear on, because passage is the no-lock function. Turn the Amber lever on either side and the latch retracts so the door opens; release it and the latch holds the door closed against the frame. There's no key, no button, no thumbturn, nothing to lock. That's exactly what you want on a closet, a hallway door, a laundry or pantry door, or any opening that just needs to latch and stay shut without ever locking someone in or out. If a door needs to lock, the Summit Series offers other functions, privacy for bedrooms and baths, and entry for exterior or lockable doors, so match the function to the door.

The Summit Series and the concealed-screw look

The AMB-30 is part of Cal-Royal's Summit Series, a residential lever line, and the Amber (AMB) is one of its lever styles. The series is built on a tubular body, the simple, reliable chassis used in residential leversets, and uses a square rose for a contemporary look. The concealed-screw design (used on the Amber and Apex styles, while the Argo style uses exposed screws) is the visual selling point: no screw heads show on the rose, giving a cleaner, more finished appearance than a standard exposed-screw set.

Finish choice is a big part of a residential lever, and the AMB-30 covers the popular looks: US15 satin nickel, US10B oil rubbed bronze, US26 polished chrome, and US1 flat black, the matte black being especially on-trend for modern interiors. The trim and levers are zinc plated.

Easy fit on standard doors

The AMB-30 is built to install simply on standard residential and light commercial doors. It fits 1-3/8" to 1-3/4" thick wood or metal doors, with a 2-3/8" or 2-3/4" adjustable backset, so one leverset covers both common backset dimensions without ordering a specific one. The latch has a 1" bore with a round-corner face and a round-corner full-lip strike, and the lock housing uses the standard 2-1/8" cross bore, so it drops into standard door prep.

Cal-Royal AMB-30 specifications

• Function: Passage, ANSI F75. Lever operates the latch from either side at all times. No locking.

• Grade: Grade 3, ANSI A156.2 (residential).

• Lever/series: Amber (AMB) lever, Summit Series. Concealed-screw design.

• Rose: Square rose standard.

• Body: Tubular.

• Trim/levers: Zinc plated.

• Door thickness: 1-3/8" to 1-3/4" (wood or metal).

• Backset: 2-3/8" or 2-3/4" adjustable.

• Latch: 1" bore, 1" x 2-1/4" round-corner face. Lock housing 2-1/8" bore.

• Strike: Round-corner full lip, 1-3/4" x 2-1/4".

• Finishes: US15 satin nickel, US10B oil rubbed bronze, US26 polished chrome, US1 flat black.

• Model: AMB-30.

Why choose the Cal-Royal AMB-30

Cal-Royal is a value-focused hardware brand, and the AMB-30 is a clean, affordable passage lever for homes and light-duty doors. You get the no-lock passage function, the concealed-screw Amber design for a fastener-free look, an adjustable backset that simplifies installation, and on-trend finishes including flat black, all at a residential-friendly price. For closets, hallways, and pass-through doors that just need to latch, it's a simple, good-looking choice that coordinates with the rest of the Summit Series.

One thing to confirm before ordering: passage means no locking. If the door needs to lock, choose a Summit privacy or entry function instead. The AMB-30 is a Grade 3 residential leverset, so for heavy commercial traffic you'd want a commercial Grade 1 or 2 lever instead. Pick your finish to match the room's other hardware.

Order the Cal-Royal AMB-30 from American Locksets

We stock the Cal-Royal Summit Series from authorized distribution, so every leverset ships with the manufacturer warranty. Compare lever styles and functions in the Cal Royal Summit levers category, see all Cal Royal residential levers, or browse all residential locks.