We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Marks USA

Marks USA 2750B/3 Polished Brass Right Hand Mortise Lever Entry Door Lock

SKU CH-XE72-7P394 MPN 2750B/3

A polished brass right-hand mortise lever lockset with a single cylinder and one-inch backset for storm doors

  • FinishPolished Brass
  • Selling UnitBox
  • TypeMortise Lever Lock Set
  • FeaturesThinline Slim Line Lockset
  • MaterialBrass
  • Backset1 inch
  • Slim profile fits narrow door stiles with Thinline design
  • Polished brass finish resists corrosion and adds traditional appeal
  • Right-hand configuration ensures correct lever orientation on entry doors
  • Single-cylinder operation allows keyed entry outside and thumb-turn inside
  • One-inch backset suits standard storm-door mortise preparations

Right-Hand Mortise Lever Entry Lock

This Marks USA 2750B/3 mortise lever lockset is finished in polished brass and configured for right-hand doors. It operates as a single-cylinder entry set with a keyed exterior and a thumb-turn interior, supplied keyed different for individual access control.

1-Inch Backset and 8-1/4-Inch Mounting Spacing

The lock requires a 1-inch backset preparation and mounting screw holes spaced at 8-1/4 inches, limiting installation to doors and frames cut to those exact dimensions. The lock face plate measures 1 inch by 9-7/16 inches, so the mortise pocket must match this footprint.

Thinline Slim Line Series for Storm Doors

Designed as a Thinline Slim Line lockset, this model suits narrow-stile storm doors where standard mortise bodies will not fit. Buyers needing a wider backset, left-hand handing, or a double-cylinder function must select a different lock.

Highlights

  • Slim profile fits narrow door stiles with Thinline design
  • Polished brass finish resists corrosion and adds traditional appeal
  • Right-hand configuration ensures correct lever orientation on entry doors
  • Single-cylinder operation allows keyed entry outside and thumb-turn inside
  • One-inch backset suits standard storm-door mortise preparations

Specifications

BrandMarks
Model2750B/3
FinishPolished Brass
Selling UnitBox
TypeMortise Lever Lock Set
FeaturesThinline Slim Line Lockset
MaterialBrass
Backset1 inch
KeyingKeyed Different
StyleLever
Series2750B
FunctionSingle Cylinder

Questions about this item

Does the 2750B/3 come in other finishes or handing options?

The supplier lists this model only in polished brass with a right-hand configuration; no alternative finishes or left-hand versions appear in the data.

How does the 1-inch backset affect installation on a standard storm door?

A 1-inch backset positions the cylinder closer to the edge than typical residential locks, so the door stile must be at least that deep and the 8-1/4-inch screw-hole spacing must match existing prep.

What does the single-cylinder function mean for daily use?

The lock is operated by a key on the exterior and a thumb turn on the interior, allowing free egress from inside while securing the outside with a key.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.