Arrow 100CRP-UCX - Plain face 6-Pin Uncombinated SFIC Core, Best Keyway

Yes, it's a Best keyway small format interchangeable core in the standard 6-pin figure-eight format, so it drops into any SFIC housing built for Best style cores, knobs, levers, mortise housings, padlocks, cam locks, exit device trim. You pull the old core with a control key and drop this one in. Match the keyway letter to whatever your building already runs.

Sixteen Best keyways: A, B, C, D, E, F, G, H, J, K, L, M, Q, R, TB, and WB. For a property manager standardizing a site, the keyway is the thing to match to your existing cores, a core in the wrong keyway will not accept your keys even though it fits the housing mechanically.

The 100CRP is a 6-pin core. Six-pin and seven-pin Best format cores use the same housings, but the pin count has to match your key system, a 7-pin system's keys are cut on seven positions and won't operate a 6-pin core correctly. Most commercial Best systems run 7-pin, so confirm which one your master key system was set up as before ordering.

That's exactly what an uncombinated core is for. Order the quantity you need in a single Best keyway, then have them pinned to your master key schedule. Because the format is standard Best SFIC, one order can cover levers, mortise locks, padlocks and cam locks across the site as long as each housing takes a small format core. Mixing keyways across the order defeats the masterkeying, so keep the keyway letter consistent unless you're deliberately separating a zone.

Yes, a control key for your system. The control key is what retracts the core's retaining lug so it slides out of the housing, and it's separate from your operating key. If you're setting up a new system, the control key gets cut when the core is combinated, so specify it at the same time you send the pinning instructions.

Two: 626 satin chrome and 606 satin brass. Every one of the sixteen Best keyways is offered in both, so you can match a chrome or brass lever trim without giving up your keyway. On most openings only the core face shows, so 626 is the usual pick to sit with satin chrome hardware.

Plain face means the front of the core has no keyway cap or logo plug, just the bare face around the keyway. It matters when you're mixing cores across a facility and want them to look alike from the corridor side. Functionally it changes nothing about how the core operates or how it seats in the housing.