

The Master Lock No. 6121KA ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 1-1/8in (29mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 1-1/8in |
Shackle Width (C) | 7/8 |
The Master Lock No. 6121KA ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 1-1/8in (29mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick. The blue, high visibility color cover provides the ability to distinguish between departments, employees, access, etc.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 1-1/8in |
Shackle Width (C) | 7/8 |
The Master Lock No. 6121KA ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 1-1/8in (29mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick. The green, high visibility color cover provides the ability to distinguish between departments, employees, access, etc.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 1-1/8in |
Shackle Width (C) | 7/8 |
The Master Lock No. 6121KALF ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 1-1/2in (38mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 1-1/2in |
Shackle Width (C) | 7/8 |
The Master Lock No. 6121KALF ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 1-1/2in (38mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick. The blue, high visibility color cover provides the ability to distinguish between departments, employees, access, etc.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 1-1/2in |
Shackle Width (C) | 7/8 |
The Master Lock No. 6121KALF ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 1-1/2in (38mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick. The green, high visibility color cover provides the ability to distinguish between departments, employees, access, etc.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 1-1/2in |
Shackle Width (C) | 7/8 |
The Master Lock No. 6121KALF ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 1-1/2in (38mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick. The orange, high visibility color cover provides the ability to distinguish between departments, employees, access, etc.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 1-1/2in |
Shackle Width (C) | 7/8 |
The Master Lock No. 6121KALF ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 1-1/2in (38mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick. The red, high visibility color cover provides the ability to distinguish between departments, employees, access, etc.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 1-1/2in |
Shackle Width (C) | 7/8 |
The Master Lock No. 6121KALF ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 1-1/2in (38mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick. The green, high visibility color cover provides the ability to distinguish between departments, employees, access, etc.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 1-1/2in |
Shackle Width (C) | 7/8 |
The Master Lock No. 6121KALJ ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 2-1/2in (64mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 2-1/2in |
Shackle Width (C) | 7/8 |
The Master Lock No. 6121KALJ ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 2-1/2in (64mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick. The blue, high visibility color cover provides the ability to distinguish between departments, employees, access, etc.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 2-1/2in |
Shackle Width (C) | 7/8 |
The Master Lock No. 6121KALJ ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 2-1/2in (64mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick. The green, high visibility color cover provides the ability to distinguish between departments, employees, access, etc.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 2-1/2in |
Shackle Width (C) | 7/8 |
The Master Lock No. 6121KALJ ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 2-1/2in (64mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick. The orange, high visibility color cover provides the ability to distinguish between departments, employees, access, etc.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 2-1/2in |
Shackle Width (C) | 7/8 |
The Master Lock No. 6121KALJ ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 2-1/2in (64mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick. The red, high visibility color cover provides the ability to distinguish between departments, employees, access, etc.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 2-1/2in |
Shackle Width (C) | 7/8 |
The Master Lock No. 6121KALJ ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 2-1/2in (64mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick. The yellow, high visibility color cover provides the ability to distinguish between departments, employees, access, etc.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 2-1/2in |
Shackle Width (C) | 7/8 |
The Master Lock No. 6121KA ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 1-1/8in (29mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick. The orange, high visibility color cover provides the ability to distinguish between departments, employees, access, etc.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 1-1/8in |
Shackle Width (C) | 7/8 |
The Master Lock No. 6121KA ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 1-1/8in (29mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick. The red, high visibility color cover provides the ability to distinguish between departments, employees, access, etc.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 1-1/8in |
Shackle Width (C) | 7/8 |
The Master Lock No. 6121KA ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike – multiple locks open with the same key – features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 1-1/8in (29mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick. The yellow, high visibility color cover provides the ability to distinguish between departments, employees, access, etc.
Keying | Keyed Alike |
Engravable | Yes |
Body Width | 2-1/8 |
Body Width (Metric) | 54 |
Shackle Diameter (A) | 5/16 |
Shackle Diameter (A) (Metric) | 8 |
Shackle Height (B) | 1-1/8in |
Shackle Width (C) | 7/8 |