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Polished brass mortise entry lockset with wide face plate and screwless knobs, left-hand orientation

MAXTECH

MAXTECH 1033BX3L Mortise Entry Lockset Polished Brass Left Hand 2-1/2 Backset

SKU CH-4CAG-P0YGY MPN 1033BX3L

Heavy-duty mortise entry lockset with through-bolted screwless knobs, solid brass cylinder and wide face plate for left-hand doors

  • Security gradeHeavy Duty
  • Location typeCommercial/Residential
  • Backset distance2-1/2 in
  • Lock keyingKeyed Different
  • Main functionEntrance
  • Surface finishPolished Brass
  • Heavy-duty security with solid brass construction
  • Wide 1-1/4" x 8" face plate fits standard mortise cutouts
  • Left-hand configuration for correct door swing operation
  • Through-bolted knob plates prevent loosening over time
  • Self-adjusting spindles with screwless knobs simplify installation

Polished Brass Mortise Entry Lockset

The MAXTECH 1033BX3L is a heavy-duty mortise entry lockset finished in polished brass for commercial or residential doors. It uses a left-hand configuration with a wide face plate measuring 1-1/4 inches by 8 inches. Through-bolted plate assemblies and screwless knobs provide a secure, clean installation. Solid brass construction ensures durability in high-traffic areas.

Critical Handing and Backset Match

This lockset is built specifically for left-hand doors with a 2-1/2 inch backset; the latch will not align if the door is right-hand or the backset differs. The wide face plate dimensions of 1-1/4 by 8 inches must match the existing mortise pocket cut-out. Verify both measurements before ordering to avoid a return.

Mortise Pocket Preparation Required

Installation requires an existing mortise pocket cut to accept the wide face plate and through-bolted assemblies. Self-adjusting spindles simplify alignment, but the deep mortise cut is a skilled carpentry task. Common issues include misjudging the handing or discovering the current door prep suits a narrower face plate.

How it compares

Measured against everything we stock in Door Lock Sets & Deadbolts, at today’s prices. Recalculated every night.

Price $93.99
Pricier than about 64% of the 2,145 comparable items (median $55.99).

Specifications

Product
Product lineMarks 114A/3-X Like
Model name1033BX3L
Product typeMortise Entry Lockset - Through bolted plate assemblies, Screwless knobs
Design styleKnobs
Size & build
Surface finishPolished Brass
Main materialBrass
Backset distance2-1/2 in
More details
Security gradeHeavy Duty
Location typeCommercial/Residential
Lock keyingKeyed Different
Main functionEntrance

Questions about this item

What does the 2-1/2 backset mean once the lock is fitted?

The 2-1/2 backset places the centre of the cylinder 2-1/2 inches from the door edge, so the mortise pocket and strike must align with that dimension.

How does the mortise interface limit what the lock can do?

As a mortise entry lockset it installs into a rectangular pocket in the door edge, accepting a 1 inch deadbolt throw and a thumb-turn inside with keyed cylinder outside.

What door thickness and face-plate cutout does the wide face plate need?

The wide face plate measures 1-1/4 by 8 inches and the through-bolted knob assemblies require a door thick enough for the self-adjusting spindles to engage securely.

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