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Polished brass mortise lock body, left-hand reverse, rectangular faceplate

Marks USA

Marks USA 21AC Left Hand Reverse Mortise Lock Body

SKU CH-MYSF-JQRD8

Left-hand reverse mortise lock body with 2-1/2" backset, 1" deadbolt and 1" X 7-1/8" faceplate for Marks 21AC series iron gate doors

  • Selling UnitEach
  • Left-hand reverse operation suits iron gate doors
  • Polished brass finish resists corrosion and wear
  • 2-1/2" backset fits standard mortise preparations
  • 1" deadbolt throw secures the door firmly
  • 1" X 7-1/8" faceplate matches Marks 21AC series dimensions

Left-hand reverse mortise lock body

The Marks USA 21AC mortise lock body is built for iron gate doors that require a left-hand reverse handing. It replaces the lock body in the 21AC series and is sold as the body only; all other components must be sourced separately.

Polished brass finish with 2-1/2" backset

The lock body carries a polished brass finish and is machined to a 2-1/2" backset with a 1" deadbolt throw. Its faceplate measures 1" X 7-1/8" to match the series dimensions.

Body-only package for series repair

The package contains one lock body and no additional hardware or software. Buyers who need a complete lockset with trim, cylinders or strike plates must purchase those parts separately.

Highlights

  • Left-hand reverse operation suits iron gate doors
  • Polished brass finish resists corrosion and wear
  • 2-1/2" backset fits standard mortise preparations
  • 1" deadbolt throw secures the door firmly
  • 1" X 7-1/8" faceplate matches Marks 21AC series dimensions

Specifications

Selling UnitEach

Questions about this item

How do I install the 2-1/2" backset mortise body into an iron gate door, and what step is commonly missed?

Mortise a pocket matching the 1" X 7-1/8" faceplate, secure the body, then fit the 1" deadbolt; the step often missed is confirming the left-hand-reverse handing before cutting the door.

Which components will need replacement over time on this Marks 21AC lock body?

The deadbolt bolt, latch bolt, internal springs and cylinder are wear items; the polished brass faceplate may also need refinishing if the coating wears through.

What is the first limitation that appears during sustained heavy use of this mortise lock?

The 1" deadbolt throw and spring-loaded latch are the first parts to show binding or reduced throw consistency under high-cycle operation.

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