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Polished brass mortise lockset with left-hand lever and cylinder visible

MAXTECH

MAXTECH 1033BL Polished Brass Left Hand Mortise Door Lock

SKU CH-9X75-XJDEB MPN 1033BL

A heavy-duty left-hand mortise lockset with through-bolted brass plates, screwless knobs and a solid brass cylinder

  • FinishPolished Brass
  • Selling UnitEach
  • TypeMortise Lockset
  • FeaturesMAXTECH
  • Solid brass plates and cylinder resist wear and corrosion
  • Left-hand mortise configuration fits doors hinged on the left
  • Through-bolted knob plates provide a rigid, secure installation
  • Self-adjusting spindles with screwless knobs simplify fitting and alignment
  • Supplied with two keys for the solid brass cylinder

Left-Hand Mortise Lockset

The MAXTECH 1033BL is a polished brass mortise lockset configured for left-hand doors. It is built for commercial entry applications requiring heavy-duty hardware. Solid brass plates and a solid brass cylinder with two keys provide durability and a traditional appearance. This unit suits installers fitting a complete entry set on a prepped door.

Right-hand or non-mortise doors

This lockset only fits left-hand doors prepared for a mortise pocket. Builders working with right-hand swings, cylindrical bore holes, or tubular latch preps cannot use it. Projects needing a deadbolt-only unit or a passage function without a cylinder should select different hardware. The handed design prevents installation on the opposite swing.

2-1/2 inch backset and 1 inch deadbolt throw

The lock operates on a 2-1/2 inch backset with a 1 inch deadbolt throw. The front face plate measures 1-1/16 inches by 7-5/8 inches. These dimensions determine whether the mortise pocket and strike locations match the existing door preparation. Verify both measurements before purchase to ensure correct fit.

Highlights

  • Solid brass plates and cylinder resist wear and corrosion
  • Left-hand mortise configuration fits doors hinged on the left
  • Through-bolted knob plates provide a rigid, secure installation
  • Self-adjusting spindles with screwless knobs simplify fitting and alignment
  • Supplied with two keys for the solid brass cylinder

Specifications

Model1033BL
FinishPolished Brass
Selling UnitEach
TypeMortise Lockset
FeaturesMAXTECH

Questions about this item

What door thickness and bore dimensions must my door already have for the 1033BL mortise lock to fit?

The lock requires a 2-1/2" backset and a front face plate measuring 1-1/16" x 7-5/8"; your door must be mortised to accept those dimensions and the through-bolted knob plates.

Can I keep my existing cylinder and thumb-turn hardware when installing this left-hand mortise lockset?

The 1033BL includes a solid brass cylinder with two keys for the outside and an integrated thumb turn for the inside, so the supplied cylinder and turn replace any existing ones.

How do I verify the self-adjusting spindles and screwless knobs are engaged correctly after installation?

Operate the lever from both sides; the spindle should rotate freely without set-screw adjustment and the knobs must remain firmly attached through the through-bolted plates.

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