Master Lock No. 3LF in Black, colored bumper
Black 3KALFBLK
Master Lock Keyed Alike · KA

Master Lock No. 3LF

Laminated steel · 1‑9/16in (40mm) body · 1‑1/2in long shackle · 9/32in dia

$18.60/lock

Order

3KALFBLK

Color Black
Price

Add 5 more of this color to reach 15% off ($15.81 a lock).

(leave blank for a new set)

Per lock $18.60
Set total $18.60+ shipping
American Lock keys with the key number stamped on the bow.
Key number

It's stamped on the bow of your key.

Usually five characters on an American Lock key (like 25432 or A1463), four on a Master Lock key (like 3303 or X204). Type it in and these locks are keyed to open with the keys you already carry.

No locks yet? Leave it blank and the set is keyed to a new number.

Lost the number? Call (800) 314-8786; a person answers.
KA only

Everything on keyedalike.com ships keyed alike: one key number per set, two keys per lock. Need each lock on its own key? The No. 3LF keyed different is on MasterLocks.com. Need a master key over several sets? Master-keyed systems are on MasterLocks.com.
Specifications · Master Lock No. 3LF

The numbers, printed right here.

Spec sheet

Manufacturer figures. Sizes read body · shackle clearance · shackle diameter.

Body 1‑9/16in (40mm) wide · Laminated steel
Shackle1‑1/2in clearance
FeaturesLong shackle, Rekeyable cylinder
KeyingKeyed Alike on this store: every lock in this set opens with the same key, keyed to a new number or to the number you give us. KD and MK sold on MasterLocks.com.
KeysTwo per lock, stamped with the key number.
KA SKU3KALF + color (BLK, BLU, GRN, RED, WHT, YLW)
Brand
Master Lock
In the box
  • One No. 3LF in your color, keyed to the set's key number
  • Two keys per lock, stamped with the key number
  • Packing slip with the key number (one per shipment)

Quantity breaks

Applied in the cart. Counted per model and color.

Per lock
1–5 $18.60
6–2315% off$15.81
24+20% off$14.88
After you order

Keyed and checked before it ships.

Every set is keyed to order and ships from California.

Three steps, every set

  1. 1
    Keyed.

    To your key number, or to a new one if you left the field blank.

  2. 2
    Checked.

    Every set is checked against its key number before it's boxed.

  3. 3
    Shipped.

    From California. Need a PO number on the invoice? Add it in the PO number field in your cart.

Already have Master Lock locks in service?

Type the number on your key. These get keyed to it.

Usually four characters stamped on the bow, like 3303; it goes in the ticket above, under Existing key number. Lost the number? Call (800) 314-8786; a person answers.

Match my key number