KSP 207-A-BLACK COMBI Construction Core Keyed SFIC Core 7-Pin

A construction core is a temporary interchangeable core you drop into locks while a job is still under construction, so the crew keys are worthless the moment the building is turned over. The KSP 207-A is a 7-pin small format interchangeable core (SFIC) in the A keyway, black, keyed as a construction core. When the job finishes, you pull it with the control key and drop in the permanent core. No lock disassembly, no re-drilling.

Yes on the housing, no on the key. Small format interchangeable core figure-8 housings are the same size for 6-pin and 7-pin, so the 207-A drops into any SFIC-prepped lock, cylindrical, mortise, padlock or cam lock. What changes is the key bitting depth: a 7-pin core takes 7-pin keys and control keys. If your building is keyed 6-pin, a 7-pin core will not run on your existing keys and control key. Corbin Russwin sells a 6-pin construction core, the 8000-CT6, if 6-pin is what your system is built on.

Only if your system is the A keyway. The 207-A is cut for keyway A, and SFIC keyways are not cross-compatible, an A key will not enter a C, E or other keyway core. Match the letter to what the rest of your doors run before you order, because the keyway is the one thing you cannot change in the field.

No. The 207-A only goes into hardware built for a small format interchangeable core, the figure-8 cavity plus a control key. A standard cylindrical lock with a fixed cylinder or a mortise lock with a threaded cylinder will not take it. If the doors are not SFIC-prepped, you are looking at an IC-prepped lock body or a mortise/rim IC housing instead of just the core.

The KSP 207-A-BLACK COMBI is a 7-pin small format interchangeable core in the A keyway, finished black. When the housings on the job take a 6-pin core, the Corbin Russwin 8000-CT6 BLUE is a 6-pin interchangeable core supplied as a blue construction core. Both serve the same purpose during construction: they let trades key into the building on a temporary key, and they pull out with a control key when the permanent cores go in. The choice between them is pin stack depth, so confirm what the cylinders on the doors were built for before ordering.

Not interchangeably in every case. The Corbin Russwin 8000-CT6 BLUE is a 6-pin interchangeable core and the KSP 207-A-BLACK COMBI is a 7-pin core cut to the A keyway, so they are not the same core in a different color. A locksmith standardizing a site should pick one pin count and one keyway family and stay with it, because the operating keys and the control key that pulls the core follow the keyway, not the housing. Mixing the two means carrying two sets of construction keys on the same building.

Temporary. It is a construction core, meant to be pulled at turnover and replaced with the permanent keyed core for the building's system. Order the permanent cores at the same time so the changeover is a single trip, and keep the control key, without it the core does not come out.

Pin count and system, mostly. The KSP 207-A is a 7-pin SFIC construction core in the A keyway with a black face; the Corbin Russwin 8000-CT6 is a 6-pin interchangeable core with a blue construction face. The colored face is just so the crew can spot a temp core across a corridor. Pick the one that matches the pin count and keyway of the permanent system going into the building, not the color.

The color on a construction core is a visual flag for the crew, not a performance difference. The KSP 207-A-BLACK COMBI carries a black finish and the Corbin Russwin 8000-CT6 BLUE is a blue construction core; either one tells a property manager or superintendent walking the building at a glance which openings are still on temporary keying and which have received their permanent cores. If a site already runs blue cores for temporary keying, adding black cores from a second manufacturer is worth deciding on deliberately so the color convention on the job stays readable.