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Progressive Hardware Co., Inc.

Progressive Hardware Co., Inc. 2600LP Polished Brass Door Lock

SKU CH-CGX4-BG42G MPN 2600LP

Solid brass door knob set with threaded spindle fits Lockwood mortise locksets

  • FinishPolished Brass
  • Solid brass construction ensures lasting durability
  • Factory-pinned spindle simplifies installation on 1-3/4" doors
  • Threaded 3/8-18 TPI spindle provides secure fastening
  • Case-hardened set screws resist wear on interior knob
  • Packed as a complete pair for immediate fitting

Polished Brass Door Knob Set

The Progressive 2600LP is a solid brass knob set finished in polished brass US3. It is designed for Lockwood surface-mount mortise locksets and similar applications. Supplied as one pair per box, it suits residential and light-commercial doors requiring a traditional mortise lock trim.

Factory-Pinned Spindle Installation

Each knob arrives factory-pinned to the swivel spindle for a standard 1-3/4 inch door. The spindle carries two 3/8 inch centres and a 3/8-18 TPI thread. The inside knob secures with two case-hardened set screws, so a hex or Allen driver matching those screws is the only tool normally required.

Verify Mortise Lock Compatibility

Confirm the existing lock body is a Lockwood surface-mount mortise type or an equivalent that accepts a 3/8-18 threaded spindle with dual 3/8 inch centres. Check that the door thickness matches the factory-pinned 1-3/4 inch dimension, as the spindle length is not adjustable. Ensure the current trim uses the same spindle geometry before ordering.

Highlights

  • Solid brass construction ensures lasting durability
  • Factory-pinned spindle simplifies installation on 1-3/4" doors
  • Threaded 3/8-18 TPI spindle provides secure fastening
  • Case-hardened set screws resist wear on interior knob
  • Packed as a complete pair for immediate fitting

Specifications

BrandProgressive Hardware Co., Inc.
Model2600LP
FinishPolished Brass

Questions about this item

How can I confirm the 2600LP knob set is working correctly after installation?

Turn each knob; the latch should retract smoothly and the spindle must rotate freely without binding.

What components are included with the 2600LP and what must I supply?

The box contains one pair of solid brass knobs with a factory-pinned 3/8-18 threaded spindle; you must provide the mortise lock body and mounting screws.

Which finish version of the 2600LP should I select for a polished brass look?

Choose the US3 Polished Brass finish listed in the product title; it is the only finish offered for this model.

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