Master Lock Master Lock

Master Lock is the largest global manufacturer and marketer of padlocks.

  • Master Lock Technical Manual
  • Definitions and Terminology
  • Master Lock Keys and Keyways
  • Master Lock Chart Request Form

    • Top selling products for Master Lock
    Master Lock Co. CNTLKEYB1 F444 Controlkey F/Combo Locker Lock
    Product Review Video of Master Lock Co. CNTLKEYB1 F444
    Master Lock Co. CNTLKEYB1 F444
    Master Lock Co. CNTLKEYB1 F444 Controlkey F/Combo Locker Lock
    Controlkey F/Combo Locker Lock
    Master Lock
    Price: $22.76
    More Info
    Master Lock Company K1630 F112 F112 Control Key
    Product Review Video of Master Lock Company K1630 F112
    Master Lock Company K1630 F112
    Master Lock Company K1630 F112 F112 Control Key
    F112 Control Key
    Master Lock
    Price: $23.22
    More Info
    Master Lock Company K1630 F236 Cut Master Key
    Product Review Video of Master Lock Company K1630 F236
    Master Lock Company K1630 F236
    Master Lock Company K1630 F236 Cut Master Key
    Cut Master Key
    Master Lock
    Price: $23.22
    More Info
    Master Lock Company K1630 F308 #F308 Control Key
    Product Review Video of Master Lock Company K1630 F308
    Master Lock Company K1630 F308
    Master Lock Company K1630 F308 #F308 Control Key
    #F308 Control Key
    Master Lock
    Price: $23.22
    More Info
    Master Lock Co. CNTLKEYB1 F148 Controlkey F/Combo Locker Lock
    Product Review Video of Master Lock Co. CNTLKEYB1 F148
    Master Lock Co. CNTLKEYB1 F148
    Master Lock Co. CNTLKEYB1 F148 Controlkey F/Combo Locker Lock
    Controlkey F/Combo Locker Lock
    Master Lock
    Price: $22.81
    More Info
    Master Lock 21W1KZ Laminated Steel Rekeyable Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Rekeyable 4-Pin W1 Cylinder Zero Bitted
    Master Lock 21W1KZ
    Master Lock 21W1KZ Laminated Steel Rekeyable Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Rekeyable 4-Pin W1 Cylinder Zero Bitted
    Laminated Steel Rekeyable Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Rekeyable 4-Pin W1 Cylinder Zero Bitted
    Master Lock
    Price: $17.79
    More Info
    Master Lock ML500KA Breakaway Steel Padlock
    Product Review Video of Master Lock ML500KA
    Master Lock ML500KA
    Master Lock ML500KA Breakaway Steel Padlock
    Keyed Alike Padlock for Fire Extinguisher Cabinet
    Master Lock
    Price: $13.06
    More Info
    Master Lock 7KA-P506 Laminated Steel Pin Tumbler Padlock 1 1/8" Wide 9/16" Tall Shackle Keyed Alike P506 Control Keys
    Master Lock 7KA-P506
    Master Lock 7KA-P506 Laminated Steel Pin Tumbler Padlock 1 1/8" Wide 9/16" Tall Shackle Keyed Alike P506 Control Keys
    Laminated Steel Pin Tumbler Padlock 1 1/8" Wide 9/16" Tall Shackle Keyed Alike P506 Control Keys 4-Pin Cylinder
    Master Lock
    Price: $9.45
    More Info
    Master Lock 1KA-2438 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2438 Control Keys
    Product Review Video of Master Lock 1KA-2438
    Master Lock 1KA-2438
    Master Lock 1KA-2438 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2438 Control Keys
    Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2438 Control Keys Non-Rekeyable 4-Pin Cylinder
    Master Lock
    Price: $13.18
    More Info
    Master Lock Cmp. K1630 F336 K1630 F336 Control Key Built In Combo Loc
    Master Lock Cmp. K1630 F336
    Master Lock Cmp. K1630 F336 K1630 F336 Control Key Built In Combo Loc
    K1630 F336 Control Key Built In Combo Loc
    Master Lock
    Price: $26.70
    More Info
    Master Lock Co. CNTLKEYB1 F984 Controlkey F/Combo Locker Lock
    Product Review Video of Master Lock Co. CNTLKEYB1 F984
    Master Lock Co. CNTLKEYB1 F984
    Master Lock Co. CNTLKEYB1 F984 Controlkey F/Combo Locker Lock
    Controlkey F/Combo Locker Lock
    Master Lock
    Price: $22.81
    More Info
    Master Lock Company K1630 F436 F436 Control Key
    Product Review Video of Master Lock Company K1630 F436
    Master Lock Company K1630 F436
    Master Lock Company K1630 F436 F436 Control Key
    F436 Control Key
    Master Lock
    Price: $23.22
    More Info
    Master Lock Co. 1525K V30 Control Key For V30 Locker Loc
    Product Review Video of Master Lock Co. 1525K V30
    Master Lock Co. 1525K V30
    Master Lock Co. 1525K V30 Control Key For V30 Locker Loc
    Control Key For V30 Locker Loc
    Master Lock
    Price: $22.81
    More Info
    Master Lock 1KA-2246 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2246 Control Keys
    Product Review Video of Master Lock 1KA-2246
    Master Lock 1KA-2246
    Master Lock 1KA-2246 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2246 Control Keys
    Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2246 Control Keys Non-Rekeyable 4 Pin Cylinder
    Master Lock
    Price: $13.18
    More Info
    Master Lock Cmp. K1630 F205 K1630 F205 Control Key Built In Combo Loc
    Master Lock Cmp. K1630 F205
    Master Lock Cmp. K1630 F205 K1630 F205 Control Key Built In Combo Loc
    K1630 F205 Control Key Built In Combo Loc
    Master Lock
    Price: $26.70
    More Info
    Master Lock 1KALJ-2729 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 2 1/2" Tall Shackle Keyed Alike 2729 Control Keys
    Master Lock 1KALJ-2729
    Master Lock 1KALJ-2729 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 2 1/2" Tall Shackle Keyed Alike 2729 Control Keys
    Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 2 1/2" Tall Shackle Keyed Alike 2729 Control Keys Non-Rekeyable 4-Pin Cylinder
    Master Lock
    Price: $15.12
    More Info
    Master Lock Company 1525 V617 Padlock 3/4Sh Comb Dif Mk V617
    Master Lock Company 1525 V617
    Master Lock Company 1525 V617 Padlock 3/4Sh Comb Dif Mk V617
    Padlock 3/4Sh Comb Dif Mk V617
    Master Lock
    Price: $11.89
    More Info
    Master Lock Company 1525 V659 Master Combolock W/Key Overide
    Product Review Video of Master Lock Company 1525 V659
    Master Lock Company 1525 V659
    Master Lock Company 1525 V659 Master Combolock W/Key Overide
    Master Combolock W/Key Overide
    Master Lock
    Price: $12.65
    More Info
    Master Lock 3KALH-3753 Laminated Steel Pin Tumbler Padlock 1 9/16" Wide 2" Tall Shackle Keyed Alike 3753 Control Keys
    Master Lock 3KALH-3753
    Master Lock 3KALH-3753 Laminated Steel Pin Tumbler Padlock 1 9/16" Wide 2" Tall Shackle Keyed Alike 3753 Control Keys
    Laminated Steel Pin Tumbler Padlock 1 9/16" Wide 2" Tall Shackle Keyed Alike 3753 Control Keys 4-Pin W1 Cylinder
    Master Lock
    Price: $14.27
    More Info
    Master Lock 5KA-A272 Laminated Steel Pin Tumbler Padlock 2" Wide 1" Tall Shackle Keyed Alike A272 Control Keys
    Master Lock 5KA-A272
    Master Lock 5KA-A272 Laminated Steel Pin Tumbler Padlock 2" Wide 1" Tall Shackle Keyed Alike A272 Control Keys
    Laminated Steel Pin Tumbler Padlock 2" Wide 1" Tall Shackle Keyed Alike A272 Control Keys 4-Pin Cylinder
    Master Lock
    Price: $16.48
    More Info
    Master Lock Cmp. K1630 F120 K1630 F120 Control Key Built In Combo Loc
    Master Lock Cmp. K1630 F120
    Master Lock Cmp. K1630 F120 K1630 F120 Control Key Built In Combo Loc
    K1630 F120 Control Key Built In Combo Loc
    Master Lock
    Price: $26.70
    More Info
    Master Lock 1630-F236 Built-in Combination Lock for Lift Handle Lockers - Hinged on Right Automatic Locking F236 Control Key
    Master Lock 1630-F236
    Master Lock 1630-F236 Built-in Combination Lock for Lift Handle Lockers - Hinged on Right Automatic Locking F236 Control Key
    Built-in Combination Lock for Lift Handle Lockers - Hinged on Right Automatic Locking F236 Control Key 5 Preset Combinations
    Master Lock
    Price: $19.66
    More Info
    Master Lock Company 1525K V55 Control Key For V55 Locker Lock
    Master Lock Company 1525K V55
    Master Lock Company 1525K V55 Control Key For V55 Locker Lock
    Control Key For V55 Locker Loc
    Master Lock
    Price: $22.76
    More Info
    Master Lock Cmp. K1630 F472 K1630 F472 Control Key
    Master Lock Cmp. K1630 F472
    Master Lock Cmp. K1630 F472 K1630 F472 Control Key
    K1630 F472 Control Key
    Master Lock
    Price: $26.70
    More Info
    Master Lock 1KALJ-2396 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 2 1/2" Tall Shackle Keyed Alike 2396 Control Keys
    Master Lock 1KALJ-2396
    Master Lock 1KALJ-2396 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 2 1/2" Tall Shackle Keyed Alike 2396 Control Keys
    Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 2 1/2" Tall Shackle Keyed Alike 2396 Control Keys Non-Rekeyable 4-Pin Cylinder
    Master Lock
    Price: $15.12
    More Info
    Master Lock Company K1630 F344 Cut Master Key
    Product Review Video of Master Lock Company K1630 F344
    Master Lock Company K1630 F344
    Master Lock Company K1630 F344 Cut Master Key
    Cut Master Key
    Master Lock
    Price: $10.11
    More Info
    Master Lock Company 1525K V689 Control Key V689
    Product Review Video of Master Lock Company 1525K V689
    Master Lock Company 1525K V689
    Master Lock Company 1525K V689 Control Key V689
    Control Key V689
    Master Lock
    Price: $22.76
    More Info
    Master Lock 1KALJ-2246 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 2 1/2" Tall Shackle Keyed Alike 2246 Control Keys
    Master Lock 1KALJ-2246
    Master Lock 1KALJ-2246 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 2 1/2" Tall Shackle Keyed Alike 2246 Control Keys
    Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 2 1/2" Tall Shackle Keyed Alike 2246 Control Keys Non-Rekeyable 4-Pin Cylinder
    Master Lock
    Price: $15.12
    More Info
    Master Lock Company 1525 V688 Padlock 3/4Sh Comb Dif Mk V688
    Product Review Video of Master Lock Company 1525 V688
    Master Lock Company 1525 V688
    Master Lock Company 1525 V688 Padlock 3/4Sh Comb Dif Mk V688
    Padlock 3/4Sh Comb Dif Mk V688
    Master Lock
    Price: $12.06
    More Info
    Master Lock Company 1525 V55 Padlock 3/4Sh Comb Dif Mk V55
    Product Review Video of Master Lock Company 1525 V55
    Master Lock Company 1525 V55
    Master Lock Company 1525 V55 Padlock 3/4Sh Comb Dif Mk V55
    Padlock 3/4Sh Comb Dif Mk V55
    Master Lock
    Price: $11.89
    More Info
    Master Lock 7KALF-P812 Laminated Steel Pin Tumbler Padlock 1 1/8" Wide 1 1/2" Tall Shackle Keyed Alike P812 Control Keys
    Product Review Video of Master Lock 7KALF-P812
    Master Lock 7KALF-P812
    Master Lock 7KALF-P812 Laminated Steel Pin Tumbler Padlock 1 1/8" Wide 1 1/2" Tall Shackle Keyed Alike P812 Control Keys
    Laminated Steel Pin Tumbler Padlock 1 1/8" Wide 1 1/2" Tall Shackle Keyed Alike P812 Control Keys 4-Pin Cylinder
    Master Lock
    Price: $11.03
    More Info
    Master Lock Company 2KA 2532 Padlock, 1-3/4 Laminated Brass
    Master Lock Company 2KA 2532
    Master Lock Company 2KA 2532 Padlock, 1-3/4 Laminated Brass
    Padlock, 1-3/4 Laminated Brass
    Master Lock
    Price: $23.76
    More Info
    Master Lock 3KA-3605 Laminated Steel Pin Tumbler Padlock 1 9/16" Wide 3/4" Tall Shackle Keyed Alike 3605 Control Keys
    Product Review Video of Master Lock 3KA-3605
    Master Lock 3KA-3605
    Master Lock 3KA-3605 Laminated Steel Pin Tumbler Padlock 1 9/16" Wide 3/4" Tall Shackle Keyed Alike 3605 Control Keys
    Laminated Steel Pin Tumbler Padlock 1 9/16" Wide 3/4" Tall Shackle Keyed Alike 3605 Control Keys 4-Pin W1 Cylinder 4-Pin W1 Cylinder
    Master Lock
    Price: $11.60
    More Info
    Master Lock 4150KA-41242 V-Line Brass Padlock 1 7/8" Wide 15/16" Tall Shackle Non-Rekeyable 5-Pin Cylinder Keyed Alike
    Master Lock 4150KA-41242
    Master Lock 4150KA-41242 V-Line Brass Padlock 1 7/8" Wide 15/16" Tall Shackle Non-Rekeyable 5-Pin Cylinder Keyed Alike
    V-Line Brass Padlock 1 7/8" Wide 15/16" Tall Shackle Non-Rekeyable 5-Pin Cylinder Keyed Alike
    Master Lock
    Price: $12.08
    More Info
    Master Lock 1KA-2032 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2032 Control Keys
    Product Review Video of Master Lock 1KA-2032
    Master Lock 1KA-2032
    Master Lock 1KA-2032 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2032 Control Keys
    Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2032 Control Keys Non-Rekeyable 4-Pin Cylinder
    Master Lock
    Price: $13.18
    More Info
    Master Lock 5KALJ-A272 Laminated Steel Pin Tumbler Padlock 2" Wide 2 1/2" Tall Shackle Keyed Alike A272 Control Keys
    Master Lock 5KALJ-A272
    Master Lock 5KALJ-A272 Laminated Steel Pin Tumbler Padlock 2" Wide 2 1/2" Tall Shackle Keyed Alike A272 Control Keys
    Laminated Steel Pin Tumbler Padlock 2" Wide 2 1/2" Tall Shackle Keyed Alike A272 Control Keys 4-Pin Cylinder
    Master Lock
    Price: $20.50
    More Info
    Master Lock Company CNTLKEYB1 F344 Controlkey F/Combo Locker Lock
    Master Lock Company CNTLKEYB1 F344
    Master Lock Company CNTLKEYB1 F344 Controlkey F/Combo Locker Lock
    Controlkey F/Combo Locker Lock
    Master Lock
    Price: $22.76
    More Info
    Master Lock Company CNTLKEYB1 F444 Controlkey F/Combo Locker Lock
    Product Review Video of Master Lock Company CNTLKEYB1 F444
    Master Lock Company CNTLKEYB1 F444
    Master Lock Company CNTLKEYB1 F444 Controlkey F/Combo Locker Lock
    Controlkey F/Combo Locker Lock
    Master Lock
    Price: $22.76
    More Info
    Master Lock Company 1525K V57 Control Key V57
    Master Lock Company 1525K V57
    Master Lock Company 1525K V57 Control Key V57
    Control Key V57
    Master Lock
    Price: $22.76
    More Info
    Master Lock 5KA-A500 Laminated Steel Pin Tumbler Padlock 2" Wide 1" Tall Shackle Keyed Alike A500 Control Keys
    Product Review Video of Master Lock 5KA-A500
    Master Lock 5KA-A500
    Master Lock 5KA-A500 Laminated Steel Pin Tumbler Padlock 2" Wide 1" Tall Shackle Keyed Alike A500 Control Keys
    Laminated Steel Pin Tumbler Padlock 2" Wide 1" Tall Shackle Keyed Alike A500 Control Keys 4-Pin Cylinder
    Master Lock
    Price: $16.48
    More Info
    Master Lock 21KALJ-10L320 Laminated Steel Rekeyable Pin Tumbler Padlock 1 3/4" Wide 2 1/2" Tall Shackle Rekeyable 5-Pin Cylinder Keyed Alike
    Master Lock 21KALJ-10L320
    Master Lock 21KALJ-10L320 Laminated Steel Rekeyable Pin Tumbler Padlock 1 3/4" Wide 2 1/2" Tall Shackle Rekeyable 5-Pin Cylinder Keyed Alike
    Laminated Steel Rekeyable Pin Tumbler Padlock 1 3/4" Wide 2 1/2" Tall Shackle Rekeyable 5-Pin W27 Cylinder Keyed Alike
    Master Lock
    Price: $20.74
    More Info
    Master Lock 703D Hardened Steel Hasp with Locking Eye 3 1/2" Length Body Shackle Dia. up to 11/32" Zinc Plated
    Master Lock 703D
    Master Lock 703D Hardened Steel Hasp with Locking Eye 3 1/2" Length Body Shackle Dia. up to 11/32" Zinc Plated
    Hardened Steel Hasp with Locking Eye 3 1/2" Length Body Shackle Dia. up to 11/32" Mounting Hardware Included Zinc Plated
    Master Lock
    Price: $6.37
    More Info
    Master Lock 5KA-A482 Laminated Steel Pin Tumbler Padlock 2" Wide 1" Tall Shackle Keyed Alike A482 Control Keys
    Master Lock 5KA-A482
    Master Lock 5KA-A482 Laminated Steel Pin Tumbler Padlock 2" Wide 1" Tall Shackle Keyed Alike A482 Control Keys
    Laminated Steel Pin Tumbler Padlock 2" Wide 1" Tall Shackle Keyed Alike A482 Control Keys 4-Pin Cylinder
    Master Lock
    Price: $16.48
    More Info
    Master Lock Co. 1KA 2156 Padlock, 1-3/4 Laminated Steel
    Master Lock Co. 1KA 2156
    Master Lock Co. 1KA 2156 Padlock, 1-3/4 Laminated Steel
    Padlock, 1-3/4 Laminated Steel
    Master Lock
    Price: $17.90
    More Info
    Laminated Steel Pin Tumbler Padlock 2" Wide 1" Tall Shackle Keyed Alike 2357 Control Keys x 5KA 2357- Master Lock
    b28
    Laminated Steel Pin Tumbler Padlock 2" Wide 1" Tall Shackle Keyed Alike 2357 Control Keys x 5KA 2357- Master Lock
    No Description Available
    Master Lock
    Price: $16.95
    More Info
    Master Lock 3KA-3918 Laminated Steel Pin Tumbler Padlock 1 9/16" Wide 3/4" Tall Shackle Keyed Alike 3918 Control Keys
    Product Review Video of Master Lock 3KA-3918
    Master Lock 3KA-3918
    Master Lock 3KA-3918 Laminated Steel Pin Tumbler Padlock 1 9/16" Wide 3/4" Tall Shackle Keyed Alike 3918 Control Keys
    Laminated Steel Pin Tumbler Padlock 1 9/16" Wide 3/4" Tall Shackle Keyed Alike 3918 Control Keys 4-Pin W1 Cylinder
    Master Lock
    Price: $11.60
    More Info
    Master Lock 1KA-2004 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2004 Control Keys
    Product Review Video of Master Lock 1KA-2004
    Master Lock 1KA-2004
    Master Lock 1KA-2004 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2004 Control Keys
    Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2004 Control Keys Non-Rekeyable 4-Pin Cylinder
    Master Lock
    Price: $13.18
    More Info
    Master Lock Cmp. K1525 V57 K1525 V57 Control Key For 1525 And 2010
    Product Review Video of Master Lock Cmp. K1525 V57
    Master Lock Cmp. K1525 V57
    Master Lock Cmp. K1525 V57 K1525 V57 Control Key For 1525 And 2010
    K1525 V57 Control Key For 1525 And 2010
    Master Lock
    Price: $12.90
    More Info
    Master Lock 1KA-2885 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2885 Control Keys
    Product Review Video of Master Lock 1KA-2885
    Master Lock 1KA-2885
    Master Lock 1KA-2885 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2885 Control Keys
    Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2885 Control Keys Non-Rekeyable 4 Pin Cylinder
    Master Lock
    Price: $13.18
    More Info
    Master Lock 1KA-2396 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2396 Control Keys
    Product Review Video of Master Lock 1KA-2396
    Master Lock 1KA-2396
    Master Lock 1KA-2396 Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2396 Control Keys
    Laminated Steel Pin Tumbler Padlock 1 3/4" Wide 15/16" Tall Shackle Keyed Alike 2396 Control Keys Non-Rekeyable 4-Pin Cylinder
    Master Lock
    Price: $13.18
    More Info
    • Watch Expert Advice on YouTube
    • Corporate Members of DHI
    • Member of NFPA.
    • Follow us on Facebook
    • AAADM Certified!
    • ALOA Certified!
    • Follow us on Twitter
    • DHI FDAI EDA Inspector
    • AIA
    • Follow us on Pinterest
    • ARL
    • Intertek Logo