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Solid brass mortise cylinder with polished brass finish, 1-1/2 inch length, standard cam

MAXTECH

MAXTECH B112SC1-03 door lock 1-1/2" US3 Polished Brass

SKU CH-8YXP-HSHS2 MPN B112SC1-03

Solid brass mortise cylinder with a 1-1/2" length, standard cam and 1.150 x 32 UNS thread for most mortise locks

  • FinishPolished Brass
  • Selling UnitBox
  • KeyingKeyed Different
  • Solid brass construction resists corrosion
  • 1-1/2" length fits standard mortise preparations
  • 5-pin tumbler mechanism provides reliable key control
  • Standard Cam #1 works with most mortise locks
  • 150 x 32 UNS thread ensures secure installation

Solid brass mortise cylinder for standard doors

The Maxtech B112SC1-03 is a 1-1/2 inch mortise cylinder finished in US3 polished brass. It uses a 5 pin tumbler mechanism and a Standard Cam #1 to operate most mortise lock bodies found on residential and light commercial doors. The solid brass construction resists corrosion for indoor and outdoor installations. The cylinder face measures 1.360 inches (34.5mm) in diameter with a 1.150 x 32 UNS thread.

Mechanical operation with no thermal or power

As a purely mechanical lock cylinder, the unit generates no heat, draws no electricity and produces no audible noise during normal use. There are no electronic components, batteries or wiring to maintain. Performance depends only on the precision of the brass pin tumblers and the cam engagement with the lock body. Lubrication with a dry graphite powder at periodic intervals keeps the action smooth.

Direct replacement for worn or keyed-alike cylinders

This cylinder replaces an existing 1-1/2 inch mortise cylinder with the same 1.150 x 32 UNS thread and 1.360 inch face diameter. The jump is worth it when the original cylinder binds, loses keys or requires a new keyed different combination for security. It will not suit doors prepared for a different cylinder length, a non-standard cam or a larger face diameter. Different sizes are available for other door thicknesses.

Highlights

  • Solid brass construction resists corrosion
  • 1-1/2" length fits standard mortise preparations
  • 5-pin tumbler mechanism provides reliable key control
  • Standard Cam #1 works with most mortise locks
  • 150 x 32 UNS thread ensures secure installation

Specifications

BrandMaxtech
ModelB112SC1-03
FinishPolished Brass
Selling UnitBox
KeyingKeyed Different

Questions about this item

How do I install the 1-1/2" mortise cylinder with its 1.150 x 32 UNS thread, and what step is often missed?

Thread the cylinder into the mortise lock body until the 1.360" face seats flush, then secure the set screw through the lock edge; the missed step is aligning the Standard Cam #1 with the lock's retractor before tightening.

What maintenance or replacement will the 5-pin tumbler cylinder need over time?

Lubricate the brass cylinder annually with dry graphite powder; if keys begin to bind or the 5-pin tumbler mechanism wears, replace the entire cylinder unit.

What limit appears first on the brass cylinder during sustained heavy use?

The brass cam and 5-pin tumbler pins wear under high-cycle operation, causing key rotation to stiffen or the cam to slip before the threaded body or 1.360" face shows damage.

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