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Polished brass mortise lockset with screw-on knobs and thumb turn

MAXTECH

MAXTECH 1033AL Polished Brass Left Hand Mortise Door Lock

SKU CH-D831-Q42T0 MPN 1033AL

A left-hand mortise lockset with solid brass construction, surface-mounted screw-on knobs, a swivel spindle and a brass cylinder supplied with two keys

  • Surface finishPolished Brass
  • Sold asEach
  • Product typeMortise Lockset
  • Key featuresMAXTECH
  • Solid brass construction resists corrosion
  • Left-hand mortise configuration suits specific door swings
  • Swivel spindle with screw-on knobs simplifies installation
  • Heavy-duty mortise design withstands commercial use
  • Solid brass cylinder includes two keys

Product Identity

The MAXTECH 1033AL is a left-hand mortise entry lockset finished in polished brass. It suits commercial doors and heavy-duty residential entrances where a surface-mounted knob assembly is required.

Bundled Components

A solid brass cylinder and two matching keys are supplied with the lock body. The swivel spindle and screw-on knobs mount directly onto the door face, removing the need for separate through-bolt hardware.

Installation Notes

The lock fits a standard mortise pocket with a 2-1/2" backset and a 1-1/16" x 7-5/8" front face plate. The cylinder operates from the outside while a thumb turn controls the deadbolt from the inside. The solid brass construction adds weight, so the door must be solid enough to support the assembly without sagging. Builders needing a right-hand configuration or a different backset dimension should select another model.

How it compares

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

Price $76.99
Pricier than about 58% of the 2,145 comparable items (median $55.99).

Specifications

Product
Model name1033AL
Product typeMortise Lockset
Size & build
Surface finishPolished Brass

Questions about this item

How often should I lubricate the solid brass cylinder and swivel spindle?

Apply a light PTFE or graphite lubricant to the cylinder keyway and spindle once a year, or whenever the key starts to drag, to keep the brass mechanism operating smoothly.

What component will show wear first on a high-traffic entrance?

The screw-on knob plates and swivel spindle take the most daily torque; inspect the knob screws and spindle alignment every six months and tighten or replace them before the mortise case itself is affected.

Does the polished brass finish or the solid brass cylinder get hot or consume power during continuous use?

No — this is a purely mechanical lockset with no electrical parts, so it generates no heat and draws no power regardless of how many times it is operated each day.

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