Arrow Key Blanks

Arrow key blanks are the uncut brass key blanks used to cut replacement and duplicate keys for Arrow lock cylinders installed in Arrow knob locks, lever locksets, and deadbolts. This category covers the complete set of Arrow key blanks stocked at American Locksets: the 5-pin A keyway K5A, the 6-pin A keyway K6A, the 6-pin standard bow K671, the 6-pin large bow L671, and the 6-pin large bow A keyway L6A.

If you've been searching for "arrow key blank," "arrow key blanks," "arrow lock key," "arrow key lock," or "arrow lock replacement parts," this is the correct category.

What Is the Arrow Lock Keyway?

Arrow lock cylinders use a proprietary keyway section called the AR keyway, also referred to as the A keyway on some product lines. The keyway profile determines which key blank fits the cylinder plug. Arrow cylinders are available in both 5-pin and 6-pin configurations, with the 5-pin version identified as AR1 in cross-reference systems and the 6-pin version identified as AR4.

The AR keyway is used across Arrow's full commercial hardware line including Arrow lever locks, Arrow knob locks, and Arrow deadbolts. It's also found on older Arrow residential hardware. The A keyway designation on certain key blank models like the K5A, K6A, and L6A refers to this same Arrow A/AR keyway profile.

Cross-reference equivalents for Arrow key blanks include: Ilco 1179 (5-pin) and Ilco A1179/1179A (6-pin), ESP AR1 (5-pin) and ESP AR4 (6-pin), JMA ARR-4DE (5-pin) and JMA ARR-5DE (6-pin), Cole AR4, Curtis AR-4, Taylor 135A, and Star 6AR2. All cut to the same Arrow keyway profile.

Arrow Key Blanks: Complete Model Breakdown

Arrow K5A Key Blank – 5-Pin, A Keyway

The Arrow K5A is the 5-pin key blank for Arrow A keyway cylinders. Standard bow. This is the AR1 equivalent blank, used for cutting keys to Arrow cylinders that are pinned to 5 chambers. The K5A is the correct blank for the large majority of residential Arrow locksets and older commercial Arrow hardware running 5-pin cylinders. It's also used when a 6-pin cylinder has only 5 chambers activated as part of a masterkey system.

Arrow K6A Key Blank – 6-Pin, A Keyway

The Arrow K6A is the 6-pin key blank for Arrow A keyway cylinders with standard bow. This is the AR4 equivalent blank, the correct key blank for cutting keys to Arrow commercial cylinders running all 6 pin chambers. Arrow's commercial cylindrical locks, lever locksets, and deadbolts in commercial door hardware applications are typically 6-pin. The K6A is the standard blank for Arrow commercial hardware key duplication and replacement.

Arrow K671 Key Blank – 6-Pin, Standard Bow

The Arrow K671 is the 6-pin key blank with standard bow without the A keyway designation in the model number. The K671 is the general-use 6-pin Arrow key blank for standard bow Arrow cylinders. Locksmiths and facilities teams running Arrow masterkey systems use the K671 as the standard cut blank for change keys and master keys on 6-pin Arrow commercial hardware.

Arrow L671 Key Blank – 6-Pin, Large Bow

The Arrow L671 is the 6-pin key blank with a large bow. The large bow profile provides more grip surface, which is specified on Arrow installations where the key head size is a factor, such as hands-free key rings, heavy-duty applications, or key management systems that use larger key caps or identifiers. The L671 cuts to the same 6-pin Arrow keyway as the K671 but with a larger head.

Arrow L6A Key Blank – 6-Pin, Large Bow, A Keyway

The Arrow L6A is the 6-pin, large bow variant of the A keyway blank. This is the correct blank when both the A keyway designation and the large bow bow size are required. Used on Arrow commercial cylinders in applications where a larger key bow is specified on the hardware schedule, or where the building's key control program uses identifiable large-bow keys for specific access levels.

5-Pin vs 6-Pin Arrow Key Blanks: Which One to Order

The most common ordering mistake on Arrow key blanks is specifying a 5-pin blank for a 6-pin cylinder. Arrow commercial hardware, including the Arrow AM, AK, and H Series locksets, uses 6-pin cylinders as standard. Residential Arrow hardware is typically 5-pin. If you're replacing or duplicating keys on a commercial building that uses Arrow hardware, the K6A, K671, L671, or L6A (all 6-pin) are the correct blanks.

If you're cutting keys for an older residential Arrow lockset, a padlock, or a lock that was originally set up with a 5-pin cylinder, the K5A is correct. If you're not certain, check the cylinder depth when a current key is available: 6-pin cylinders have a longer key blade with an additional cut position.

Standard Bow vs Large Bow on Arrow Key Blanks

Bow size is the key head, not the blade. The keyway and cut profile are identical between K671 (standard bow) and L671 (large bow), and between K6A and L6A. The choice between standard and large bow is a physical preference, a key management requirement, or a hardware schedule specification. There is no functional security or cutting difference between the bow sizes.

Browse the complete Arrow key blanks catalog at American Locksets. For Arrow lock cylinders to pair with these key blanks, see our cylinders, cores, and keys section. For the full Arrow hardware line including Arrow lever locks and knob locks, see Arrow lever locks and Arrow knob locks. For key blanks from other manufacturers, browse all key blanks at American Locksets.

Frequently Asked Questions About Arrow Key Blanks

Q: What is the Arrow A keyway?

The Arrow A keyway (AR keyway) is Arrow's proprietary key section used across their commercial and residential lock cylinders. Key blanks with A in the model number (K5A, K6A, L6A) are cut to this profile.

Q: What is the difference between K5A and K6A Arrow key blanks?

Pin count only:

• K5A: 5-pin, for Arrow AR1 cylinders

• K6A: 6-pin, for Arrow AR4 cylinders

Commercial Arrow hardware is almost always 6-pin. Residential Arrow is typically 5-pin.

Q: What is the Ilco cross reference for Arrow key blanks?

• K5A (5-pin): Ilco 1179, ESP AR1, JMA ARR-4DE

• K6A / K671 (6-pin): Ilco A1179 / 1179A, ESP AR4, JMA ARR-5DE, Cole AR4

Q: What is the difference between K671 and L671 Arrow key blanks?

Bow size only. K671 has a standard bow. L671 has a large bow. Both are 6-pin Arrow keyway blanks and cut identically.

Q: Which Arrow key blank fits commercial Arrow lever locks?

Arrow commercial lever and knob locks use 6-pin cylinders. The correct blanks are K6A (standard bow), K671 (standard bow), L671 (large bow), or L6A (large bow, A keyway). If unsure, confirm with your locksmith using the cylinder or existing key.