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Solid brass mortise turn knob cylinder in satin chrome finish with thumb turn

MAXTECH

MAXTECH B1TK2-26D 1" Mortise Turn Knob Cylinder Door Lock US26D Satin Chrome Adams Rite Cam #2

SKU CH-WSYX-HRPW8 MPN B1TK2-26D

Solid brass mortise turn-knob cylinder with Adams Rite Cam #2, 1.150 x 32 UNS thread and 34.5 mm face diameter

  • Lock keyingKeyed Different
  • Surface finishSatin Chrome
  • Sold asBox
  • Solid brass construction resists wear and corrosion
  • US26D satin chrome finish matches modern door hardware
  • 1" length fits standard mortise lock preparations
  • Adams Rite Cam #2 operates compatible latch mechanisms
  • Thumb-turn operation allows keyless exit from interior

Solid brass mortise turn knob cylinder

The Maxtech B1TK2-26D is a solid brass mortise turn knob cylinder finished in US26D satin chrome. It is supplied new and keyed different for individual access control. The unit features a thumb turn with no key, making it suitable for interior or exterior doors where keyed entry is not required. Its 1 inch length matches standard mortise lock preparations.

Thread specification and cam compatibility

The cylinder uses a 1.150 x 32 UNS thread and presents a 1.360 inch (34.5mm) diameter face. It is fitted with an Adams Rite cam #2, while the solid brass construction resists corrosion in normal indoor and outdoor environments. No electronic components or moving parts beyond the thumb turn are present, so operational noise and power draw are not applicable.

Installation requirements and door preparation

Installation requires a mortise pocket cut to accept the 1.150 x 32 UNS thread and a face bore for the 1.360 inch diameter cylinder face. The thumb turn operates without a key, freeing the specifier from key management for this opening. The lock will not suit doors prepared for a different thread pitch, cam style or cylinder length.

How it compares

Measured against everything we stock in Door Lock Sets & Deadbolts, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 83% of the 2,145 comparable items (median $55.99).

Specifications

Product
Brand nameMaxtech
Model nameB1TK2-26D
Size & build
Surface finishSatin Chrome
More details
Lock keyingKeyed Different

Questions about this item

How do I install the 1.150 x 32 UNS thread cylinder, and what step is often missed?

Thread the solid brass cylinder into the mortise lock until the 1.360 diameter face seats flush, then tighten the set screw to lock the Adams Rite Cam #2 orientation — skipping the set screw lets the cam rotate and prevents the thumb turn from throwing the bolt.

What maintenance or replacement will this cylinder need over time?

Lubricate the 5 pin tumbler mechanism annually with dry graphite powder; the solid brass body and US26D satin chrome finish resist corrosion, but internal pins wear — replace the cylinder if the thumb turn binds or fails to retract the latch cleanly.

What limit appears first during sustained heavy use of the thumb turn?

The 5 pin tumbler's brass pins and springs fatigue before the solid brass housing or US26D finish, causing increased rotational resistance or failure to engage the Adams Rite Cam #2 consistently after thousands of cycles.

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