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Progressive Hardware 2600/3 Standard Duty Door Knob Pair – Polished Brass (US3)

A solid brass replacement knob pair from Progressive Hardware's legendary 2600 series, featuring a classic 2-1/4" squashed-ball design and a warm Polished Brass (US3) finish. Ships complete with case-hardened set screws and a 3-1/2" straight spindle (20 TPI) for mortise lock applications.
$14.15 $21.75

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  • Description
  • Specifications

The Progressive Hardware 2600/3 is a standard duty solid brass knob pair designed as a direct replacement for mortise lock installations. A trusted staple in the locksmith trade, this 2-1/4" knob set ships ready to install with all required hardware included.

  • Material: Solid brass construction throughout
  • Knob Diameter: 2-1/4" round (squashed ball design)
  • Finish: US3 Polished Brass (Bright Brass)
  • Spindle: Includes 3-1/2" straight spindle, 20 TPI standard thread
  • Set Screws: 4 case-hardened screws, 1/4"
  • Packaging: Sold as one pair per box
  • Application: Parts/replacement for mortise locks — residential and light commercial doors
  • Compatibility note: Standard 20 TPI spindle; also available in 16 TPI (2600S for Sargent) and 18 TPI (2600L for Lockwood)
Lever knob design Ball Knob
Manufacturer Progressive Hardware
Material Brass