KSP 207SC Series - SFIC 7-Pin Construction Cores

It fits any lock or cylinder housing prepped for a small format interchangeable core, the standard figure-eight SFIC opening used across knobs, levers, mortise housings, rim cylinders, padlocks and cabinet locks. The 207SC is a 7-pin core, so it seats in a full-depth SFIC housing. If your hardware takes large format (LFIC) cores, this will not go in.

The 207SC Series is 7-pin. A 7-pin core fits a standard SFIC housing and gives you more usable master key levels than a 6-pin. If your site is keyed 6-pin, the alternative we carry is the Corbin Russwin 8000-CT6 BLUE, a 6-pin interchangeable core supplied as a blue construction core.

Yes. An SFIC core is inserted and pulled with a control key cut to that keyway, not with the operating key. Order or confirm you hold a control key in the same keyway you specify on the core (A, C, D, E, F, G, H, J, K or L), otherwise you can put cores in and not get them back out at turnover.

No, and leaving it in is a security problem. A construction core exists to be replaced: every trade, sub and supplier who was on site holds a key to it. Once the building is turned over, pull the 207SC cores and install permanent cores in the same SFIC housings. The permanent core drops into the identical opening, so the changeover is a per-door core swap, not a hardware change.

The Corbin Russwin 8000-CT6 BLUE is a blue construction core built as a 6-pin interchangeable core, and it fills the same role during a job: a temporary keyed core the trades carry until the building is turned over and the permanent cores go in. The KSP 207SC is a small format interchangeable core built to 7-pin and supplied in satin chrome across keyways A, C, D, E, F, G, H, J, K and L, so a locksmith matching an existing 7-pin SFIC keying system stays with the 207SC and picks the keyway already in use on the site, while the 8000-CT6 BLUE suits a 6-pin housing.

Both are interchangeable-core construction cores, but they differ on pin count and format family. The KSP 207SC is a 7-pin SFIC core in satin chrome with a choice of ten keyways. The Corbin Russwin 8000-CT6 BLUE is a 6-pin interchangeable core supplied blue, the color coding many GCs use so a construction core is obvious on walkthrough. Match whichever one to the keying system the permanent hardware is on.

That is the normal way to run it. Put 207SC cores of a single keyway in every opening during construction so one key covers the site, then at turnover swap in permanent cores keyed per unit, per department or into your master system. Because the swap is a core pull with a control key, no door hardware comes apart and no lock is rekeyed on site.

Pin length decides this, not the fact that both are interchangeable cores. The KSP 207SC series is built to 7-pin, so it belongs in a 7-pin small format interchangeable core system and takes a 7-pin operating key. The Corbin Russwin 8000-CT6 BLUE is a 6-pin interchangeable core, which is the right choice when the housings and the master key system on the job are 6-pin. A property manager standardizing a building should confirm which pin count the existing cores use before ordering either one, because the two are not keyed alike to each other and mixing them across one facility means carrying two key systems.