BEST 1AP1WC1KS567KS800 Key Blank, WC Keyway

The BEST 1AP1WC1KS567KS800 is a premium 7-pin nickel silver key blank for the WC keyway - part of BEST's W-series paracentric Premium keyway family, for use with the BEST 1CP Premium Core. Thicker blank, larger bow, Buy American Act qualified. If you searched "wc key" - this is the product.

"WC Key": What This Search Is Looking For

If you searched "wc key" you're looking for either the BEST WC keyway blank specifically, or trying to identify what WC means as a keyway designation. The WC is a BEST Premium keyway - part of the W-series family of paracentric keyways designed for the BEST 1CP Premium Core. It is not a standard BEST keyway like A, B, or C. WC blanks are thicker, physically different from standard blanks, and used in high-traffic institutional key systems that need greater key durability and higher picking resistance than the standard series provides.

Standard Core vs Premium Core: Why WC Exists

Every other product page for this blank lists it without explaining what makes Premium blanks necessary. Here is that explanation.

BEST's standard keyway system (A through R, TA through TE) uses standard-thickness blanks that work well in normal commercial applications. The standard BEST 1C core is the workhorse of institutional key systems everywhere. It's reliable, widely deployed, and cost-effective.

The BEST 1CP Premium Core is a different product for different demands. It was designed for three specific problems that show up in high-traffic environments:

Key breakage: In a building with 50 doors and 200 daily users, standard blanks take a lot of torque over time. People force locks. Keys get jammed. Standard blanks break. The Premium blank is BEST's thickest key blank - the added material cross-section directly reduces breakage under the bending stress of everyday institutional use.

Picking resistance: The WC keyway uses a paracentric profile - the keyline (the bottom of the key blade) crosses the centerline of the core's plug. This geometry makes it significantly harder to manipulate the pins using picking tools because standard picks can't maintain the correct angle of attack against the paracentric warding. Standard keyways with symmetric or partially symmetric profiles don't provide this picking resistance.

Unauthorized duplication difficulty: BEST Premium blanks are physically designed to be difficult to clamp in standard key machine vises. Even if someone obtains a WC blank, cutting it accurately requires specialized equipment. This adds a practical barrier to unauthorized key copying that goes beyond the "Duplication Prohibited" stamp alone.

1AP Model Decoded: 1AP1WC1KS567KS800

1A - BEST key blank product line.

P - Premium designation. The P suffix is what identifies this as a Premium blank versus the standard 1A1 prefix. Every W-series blank carries the P here.

1 - Standard format.

WC - The W-series Premium keyway, third in the W-family. The W-series Premium keyways are WA, WB, WC, WD, WE, WG, WH, and WY - each a distinct paracentric keyway profile for use with the 1CP core.

1 - Standard configuration.

KS567 - The cut specification code for the WC keyway premium blank.

KS800 - Nickel silver material and packaging code.

W-Series Family: WA Through WY

The WC keyway is the third member of BEST's Premium paracentric keyway family. All W-series keyways share the paracentric design and Premium blank thickness, but each has a distinct profile that cannot be interchanged with another W-series keyway. They're organized as a family for the same reason the standard A-through-R keyways are organized as a family - to enable sectional and master key systems across a building or campus while maintaining keyway selectivity between sections.

On a large campus where building A uses WA-keyway cores and building B uses WB-keyway cores, a W-series composite or master blank can be specified that enters both buildings. WC cores remain selective to WC keys within that hierarchy.

Premium W-series keyways: WA, WB, WC, WD, WE, WG, WH, WY. All use 1AP blanks. All require BEST 1CP Premium Cores.

BAA Qualified: Federal and Government Procurement

The 1AP1WC1KS567KS800 is BAA (Buy American Act) qualified - it's manufactured in the United States. For federal government facilities, GSA-contract procurement, military installations, and any public project subject to American manufacturing requirements, BAA qualification is a procurement prerequisite. The domestic manufacturing origin confirms the WC blank meets these procurement standards out of the box.

What Locks and Cores Use the WC Keyway

The BEST 1CP Premium Core (7-pin: 1CP7WC1, 6-pin: 1CP6WC1) is the primary core for WC keyway cylinders. The 1CP Premium Core installs in the same SFIC housings as the standard 1C core - BEST cylindrical locksets, BEST mortise locks, BEST padlocks, and any third-party lock hardware from Arrow, Falcon, Sargent, Corbin Russwin, or Schlage that accepts SFIC format cores.

Facilities upgrading from standard cores to Premium cores on high-traffic or security-sensitive openings do not need to replace the lock hardware - just swap the core.

Sold Individually

The 1AP1WC1KS567KS800 is sold as a single blank. Premium W-series blanks are typically ordered individually or in smaller quantities than standard box-of-50 or box-of-144 orders, because Premium key systems have tighter key control - each blank is tracked and cut to a specific user in the system rather than bulk-distributed.

Specifications

Model: BEST 1AP1WC1KS567KS800

Series: BEST Premium Key Blank - W-series paracentric

Keyway: WC - paracentric profile, Premium family

Type: 7-pin Premium blank

Material: Nickel silver

Blank Thickness: Premium - BEST's thickest key blank

Bow: Larger bow than standard series - improved grip, reduced breakage

Compatible Core: BEST 1CP7WC1 (7-pin), 1CP6WC1 (6-pin) Premium Core

Core Housing Compatibility: BEST, Arrow, Falcon, KSP SFIC format (same as 1C core)

Sold As: Single blank (individual)

BAA Qualified: Yes - US manufactured

Duplication Controls: Paracentric profile difficult to clamp in standard vises; blank distribution restricted

Related W-Series Blanks: 1AP1WA1KS567KS800 (WA), 1AP1WB1KS567KS800 (WB), 1AP1WD1KS567KS800 (WD)

American Locksets has stocked BEST Access Systems Premium key blanks since 2001.