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Polished brass mortise lock body, left hand, entrance function

Marks USA

Marks USA 8A/3 Grade 2 Mortise Lock Body Polished Brass Left Hand

SKU CH-C2X2-N527K

Mortise lock body for handleset entry doors with 1" deadbolt throw and 2-1/2" backset, left-hand operation in polished brass finish

  • FinishPolished Brass
  • TypeMortise Lockset
  • KeyingKeyed Different
  • Grade 2 security for commercial-grade entrance protection
  • Polished brass finish resists corrosion and matches classic hardware
  • Left-hand configuration fits doors hinged on the left
  • 2-1/2" backset aligns with standard mortise door prep
  • Compatible with multiple Marks handleset styles for flexible design

Marks USA 8A/3 Grade 2 Mortise Lock Body

The Marks USA 8A/3 is a Grade 2 mortise lock body designed for handleset installations. It provides an entrance function with keyed-different cylinders and a left-hand orientation. The polished brass finish suits period or traditional hardware schemes. This unit is the lock body only and requires a compatible handleset trim to operate.

Polished brass finish and 16 mounting compatibility

The polished brass face plate measures 1-1/16 inches by 7-5/8 inches and includes a 1-inch deadbolt with latch and rocker. A 2-1/2-inch backset fits standard mortise preparations. The body works with sixteen Marks handleset styles including Crown, Towne, Grand Towne and several discontinued ranges such as Cambridge and Georgetown, allowing retrofit on existing trim.

Check door handing and trim style before ordering

Verify that the door requires a left-hand mortise lockset, as this unit is not reversible. Confirm that the existing or planned handleset trim matches one of the compatible Marks styles listed. Ensure the mortise pocket accommodates the 2-1/2-inch backset and the face plate dimensions. The lock body ships without cylinders, trim or strike plate.

Highlights

  • Grade 2 security for commercial-grade entrance protection
  • Polished brass finish resists corrosion and matches classic hardware
  • Left-hand configuration fits doors hinged on the left
  • 2-1/2" backset aligns with standard mortise door prep
  • Compatible with multiple Marks handleset styles for flexible design

Specifications

FinishPolished Brass
TypeMortise Lockset
KeyingKeyed Different

Questions about this item

What backset does the 8A/3 mortise lock body use?

The lock body has a 2-1/2 inch backset for standard mortise pocket preparation.

What door thickness and handing does the left-hand body require?

It is built for left-hand doors with a 1-1/16 inch wide by 7-5/8 inch tall front face plate.

How is the lock body secured inside the mortise pocket during installation?

Fasten the body through the face-plate screw holes after aligning the 1 inch deadbolt and latch with the door edge cut-out.

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