Design Hardware6/7 Pin 1-3/8" SFIC Mortise Cylinder Housing with Standard Cam

No core, no keys. The 6/7 pin 1-3/8 inch SFIC mortise cylinder housing is the shell only: the threaded brass body with the standard cam on the back. It accepts a small format interchangeable figure-8 core, which is ordered separately and keyed into your existing system. That is the point of buying a housing rather than a complete cylinder, since a facility already running SFIC keys the core to the master system and just drops it in. If you want a cylinder that arrives keyed with cut keys, a conventional mortise cylinder like the Detex MC65 or the Corbin Russwin 1000 Series is the type to look at instead.

A small format interchangeable core in the 6 or 7 pin depth, which is the same core body either way. SFIC cores share one figure-8 shape and one control-key function across 6 and 7 pin, so a 6-pin core and a 7-pin core both seat in the 1-3/8 inch housing. What changes is the pinning depth your system uses. BEST cores are the common reference point here, and ZenSupply carries the 1CB Series interchangeable core and the 1CDF 7-pin drill resistant core.

For a mortise lock, yes on the cylinder side. The 1-3/8 inch SFIC housing threads into the mortise lock case, and your locksmith pins a core to the existing master system and drops it in with the control key. That keeps the new opening on the same key as the rest of the building without touching the lock body. If the new opening is an exit device with a rim cylinder rather than a mortise lock, the mortise housing is the wrong part for it; a rim style cylinder such as the Schlage 20-057 FSIC rim cylinder or the Corbin Russwin 3070 rim housing covers that application.

An Adams Rite MS deadlock uses its own cylinder and pull arrangement rather than the threaded mortise housing the Design Hardware SFIC unit provides. For the MS1847 deadlock and deadlatch, the Adams Rite 4024 is a cylinder pull with trim plate mounting, and the 4025 is a five pin tumbler cylinder pull with through-screws. For a wood door running the Adams Rite 5017 wood door deadlock or deadlatch, the 4026 is the five pin tumbler cylinder pull. If the storefront lock accepts a standard mortise cylinder, the Adams Rite 4036 is a Grade 1 mortise cylinder with a 1/2 inch minimum door thickness.

The Design Hardware 1-3/8 inch SFIC mortise cylinder housing with standard cam is the mortise housing only - it accepts a small format interchangeable core rather than being pinned itself. If the site is keyed on BEST small format, the core that drops into that kind of housing comes from the BEST 1C series standard 5-pin cylinder core, or the BEST Peaks 1CB 150 series interchangeable core cylinder for the patented Peaks keyway. The BEST 1CDF drill resistant preferred patented interchangeable core is the 7-pin brass 150 series version of the same core format. Housing and core are ordered separately: one Design Hardware housing per mortise lock body, one core per opening or per master keying plan.

A conventional mortise cylinder is pinned as one piece and is rekeyed by taking the cylinder apart, so it replaces the housing plus core arrangement of the Design Hardware SFIC mortise housing entirely. The Corbin Russwin 1000 Grade 1 series mortise cylinder is 1-1/2 inch long with an A02 straight cam. The Detex MC65 is a 1-1/8 inch 6-pin mortise cylinder in the Schlage C keyway. The Adams Rite 4036 mortise cylinder is a Grade 1 five-pin cylinder with a 1/2 inch minimum door thickness. Match the cylinder length to the depth the mortise lock face requires, and the cam to the lock body, before choosing.

The Design Hardware SFIC mortise cylinder housing is cut for a small format interchangeable core, and a large format core will not seat in it. For large format on a mortise lock, the Corbin Russwin 1080 Grade 1 series is a 1-1/2 inch LFIC mortise cylinder, 6-pin, for Schlage L9000 mortise locks, with an A01 Schlage L cam. On the rim side, the Schlage 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam, and the 20-057-C is the full size interchangeable core version in the C keyway, 643E aged bronze. Confirm which core format the existing keying system is built around before ordering either family, since the cores are not cross-compatible.

The Design Hardware SFIC mortise cylinder housing ships with a standard cam. When the lock body calls for a cloverleaf cam instead, the Corbin Russwin 1070 Grade 1 series is a 1-1/4 inch 6-pin mortise housing with the A01 cloverleaf cam, and the Corbin Russwin 1080 Grade 1 series 1-1/2 inch LFIC mortise cylinder also uses an A01 cloverleaf cam. Where a straight cam is called for, the Corbin Russwin 1000 Grade 1 series 1-1/2 inch mortise cylinder carries the A02 straight cam. The cam shape is set by the mortise lock manufacturer, so pull the cam letter off the lock's parts list.

The standard cam is the common mortise lock cam, the one most mortise lock cases are built around out of the box. It is worth checking what your lock case calls for before ordering, because cam styles are not interchangeable in every lock: a Corbin Russwin 1070 housing, for instance, is offered with an A01 cloverleaf cam and the 1000 Series with an A02 straight cam. If your lock case is specified for a particular cam letter, match that rather than assuming the standard cam drops in.

Core size and what carries the pins. In a small format interchangeable core setup, like this 6/7 pin 1-3/8 inch mortise housing, the housing is an empty shell and all the keying lives in a compact figure-8 core pulled with a control key. A full size interchangeable core cylinder, such as the Schlage 20-057 FSIC rim cylinder, uses the larger FSIC core format. The two core formats do not cross. If your building is already keyed one way, the housing has to follow the format your existing cores use, or the cores you own will not seat.

Mechanically it threads into the same mortise cylinder prep, but it changes how the door is keyed. A conventional cylinder is pinned to your key permanently; swapping in the SFIC housing means every future rekey is a core swap instead of a locksmith visit. That is the reason to do it on a building you plan to rekey often, like turnover-heavy multi-family or a facility with staff changes. If you just want a like-for-like replacement on one door and have no SFIC system to tie into, a conventional mortise cylinder such as the Corbin Russwin 1000 Series or a fixed-core interchangeable option like the Corbin Russwin 1080 LFIC is the simpler order.

No - a rim cylinder mounts through the door and drives an exit device or rim lock with a tailpiece, while the Design Hardware SFIC mortise cylinder housing threads into a mortise lock body and drives it with a cam. The Schlage 20-021 rim cylinder is 6-pin with a vertical tailpiece cam and the 20-022 is the same cylinder with a horizontal tailpiece cam. The Corbin Russwin 3070 is a 6-pin rim cylinder housing with a 1-7/8 inch tailpiece. The BEST 12E series is a dummy rim cylinder of 1-5/32 inch diameter. Cam versus tailpiece is what decides this, so check the lock body, not the cylinder diameter.

A key-in-lever or key-in-knob cylinder sits inside the knob or lever and is not interchangeable with the Design Hardware SFIC mortise cylinder housing, which threads into a mortise lock body. For those openings the Kaba Ilco 1539 series is a key-in-knob and lever universal cylinder, the 1579 is the knob and lever cylinder for Sargent, and the 1599 is a key-in-knob replacement cylinder. The Falcon A23161-05 G is a key-in-lever cylinder in the RU/T series 6-pin G keyway, keyed different with two cut keys. Identify the lock chassis first - the cylinder for a knob does not fit a mortise case.

The Design Hardware SFIC mortise cylinder housing takes a standard small format core, so the security level is decided by the core dropped into it. Within small format, the BEST Peaks 1CB 150 series interchangeable core cylinder is a patented keyway and the BEST 1CDF is a drill resistant preferred patented interchangeable core, 7-pin brass, 150 series. If the specification calls for Medeco keying instead, those are supplied as complete cylinders rather than as a core into a housing - for example the 1012040 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, or the 1065140 5-pin retrofit cylinder for the Arrow JL interconnected lock and Emtek handleset and deadbolt outside cylinder.

A deadbolt cylinder is keyed and mounted for the deadbolt case and does not thread into a mortise lock the way the Design Hardware SFIC mortise cylinder housing does. The Kaba Ilco 1549 series is a key-in-deadbolt cylinder, and the 1539 series is a key-in-knob and lever universal cylinder, both listed for deadbolt function. For Kwikset single cylinder deadbolts the Medeco 1012040 is a 6-pin lazy motion rim cylinder, and the Medeco 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts. Check the bolt manufacturer and the tailpiece style before ordering.

The Design Hardware SFIC mortise cylinder housing comes in US3 bright brass, US4 satin brass, US10B dark bronze, US26 bright chrome and US26D satin chrome, so it can be matched to the balance of the trim on a commercial mortise opening. Handleset and deadbolt cylinders are a different family and are ordered by the lock they retrofit rather than by matching a mortise housing - the Emtek CY4 cylinder is sold each, the Medeco 1065244 is a 5-pin rim lazy motion rim type cylinder with an Emtek tailpiece, and the Medeco 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts.