Product Description
Rekeying a building or setting up a new master key system? The Arrow Lock 100CRP-UCXFB 4 is a 6-Pin uncombinated SFIC core in F - Best keyway, Satin Brass (US4/606). Ships with no pins, no springs, and no keys — your locksmith combinates it on site to match your building's keyway and master key system. Drop it into any standard SFIC housing and the operating key turns the lock while the control key swaps the core in seconds.
No Keys Included. This core ships uncombinated. Operating keys and control key must be ordered separately, or the core must be combinated by a qualified locksmith to match your keyway. SFIC control keys have completely different bitting than operating keys — they work a second shear line inside the figure-8 core to release the retaining lug.
Pro-Tip from Our Locksmiths: 6-Pin cores in F - Best keyway drop into any standard SFIC housing — mortise, rim, knob, or lever. Make sure your existing housings match the pin count (6-Pin) before ordering. Mixing 6-pin cores in 7-pin housings won't work without a spacer. Questions? (877) 365-5625.
| Brand | Arrow Lock |
| Part Number | 100CRP-UCXFB 4 |
| Type | SFIC Core — Small Format Interchangeable Core (Uncombinated) |
| Pin Configuration | 6-Pin — residential/light commercial |
| Keyway | F - Best — SFIC format, cross-compatible with all standard SFIC housings |
| Finish | Satin Brass (US4/606) |
| Finish Notes | The 606 Satin Brass has a warm brushed gold look. You'll see it mostly in older institutional buildings, courthouses, and schools built in the 80s and 90s. |
| Keys Included | No Keys Included |
| Core Format | Small Format IC (SFIC) — figure-8 profile, .450" diameter |
| Compatibility | Any standard SFIC housing — mortise, rim, knob/lever, padlock, cabinet |
| Grade | Meets ANSI/BHMA A156.5 standards for IC cylinders |
| Material | Brass plug and shell, nickel silver pins |
| Handing | Non-handed — works in any orientation |
| Warranty | Arrow Lock limited manufacturer warranty — covers defects in materials and workmanship |
- Drops into any standard SFIC housing — mortise cylinders, rim cylinders, knob/lever locks, padlocks, and cabinet locks
- Control key swaps the core in seconds without removing the lock from the door — rekey an entire building in a fraction of the time
- Figure-8 profile with .450" diameter — industry standard across all SFIC manufacturers
- Ships uncombinated — your locksmith pins it to your building's master key system for maximum security control
- Arrow Lock commercial grade — built for daily use in schools, hospitals, offices, and government buildings
Works With: Any standard SFIC housing from any manufacturer — Arrow, BEST, Falcon, Schlage, KSP, Kaba Ilco, Sargent, and Hager. Fits mortise cylinders, rim cylinders, knob/lever locks, padlocks, and cabinet locks with SFIC prep. If you're replacing an existing core, match the pin count (6-Pin) and keyway letter to your current system. Need help? (877) 365-5625.
Image shown is representative of the product line. Actual finish, trim, and configuration may vary by SKU.
