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Polished brass mortise lockset with screwless knobs, left-hand orientation

MAXTECH

MAXTECH 1033BCL Polished Brass Left Hand Mortise Door Lock

SKU CH-VQEF-0AA6F MPN 1033BCL

Heavy-duty mortise lockset with screwless knobs, through-bolted plates and a solid brass cylinder for storeroom vestibule function

  • FinishPolished Brass
  • Selling UnitBox
  • TypeThru bolted Mortise Lock Knob Vestibule Function Always Lock
  • FeaturesThrough Bolted plate assemblies - Screwless Knobs with Self
  • Security LevelHeavy Duty
  • Location TypeCommercial/Residential
  • Heavy-duty security for commercial and residential doors
  • Polished brass finish resists corrosion and wear
  • Left-hand mortise design fits specific door orientations
  • Through-bolted knob plates with screwless knobs ensure rigid installation
  • Storeroom function keeps exterior locked while allowing free egress

Commercial-Grade Storeroom Lockset

The MAXTECH 1033BCL is a heavy-duty mortise lock designed for commercial and residential storeroom applications. Its vestibule function provides latch-only operation without a deadbolt or rocker mechanism. The lock remains locked at all times, requiring a key for every entry from the outside.

Polished Brass Through-Bolted Construction

Solid brass plates and a solid brass cylinder deliver corrosion resistance and structural strength for high-traffic doors. Through-bolted knob plate assemblies prevent loosening over time, while screwless knobs with a self-adjusting spindle simplify alignment during installation. The left-hand configuration suits doors hinged on the left when viewed from the outside.

Two Keys and Direct Retrofit Compatibility

A solid brass cylinder ships with two cut keys keyed differently for immediate security. The lockset matches the Marks 114DW series footprint, allowing direct replacement without new door preparation. No thumb turn on the interior maintains the always-locked storeroom function for controlled access environments.

Highlights

  • Heavy-duty security for commercial and residential doors
  • Polished brass finish resists corrosion and wear
  • Left-hand mortise design fits specific door orientations
  • Through-bolted knob plates with screwless knobs ensure rigid installation
  • Storeroom function keeps exterior locked while allowing free egress

Specifications

BrandMaxtech
Model1033BCL
FinishPolished Brass
Selling UnitBox
TypeThru bolted Mortise Lock Knob Vestibule Function Always Locked Storeroom Latch Only Lockset
FeaturesThrough Bolted plate assemblies - Screwless Knobs with Self adjusting Spindle
Security LevelHeavy Duty
Location TypeCommercial/Residential
MaterialBrass
Backset2-1/2"
KeyingKeyed Different
StyleKnobs
SeriesMarks 114DW/3 Like
FunctionStoreroom

Questions about this item

What backset does the 1033BCL mortise lock require?

The lock is built for a 2-1/2" backset, so the mortise pocket must be cut to that distance from the door edge.

What door thickness and handing does the left-hand 1033BCL fit?

It is a left-hand mortise set with a 1-1/16" x 7-5/8" front plate; the through-bolted design suits standard commercial door thicknesses.

How are the screwless knobs secured during installation?

The knobs use a self-adjusting spindle that locks into the through-bolted plate assemblies — no exposed screws are needed.

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