

The Master Lock No. 3KA Laminated Steel Padlocks, Keyed Alike - multiple locks open with the same key - feature a 1-9/16in (40mm) reinforced laminated steel lock body providing extra strength and a 3/4in (19mm) tall, 9/32in (7mm) diameter hardened steel shackle for excellent cut resistance. Dual ball bearings locking for maximum pry resistance making it ideal for industrial applications and the non-rekeyable, 4-pin W1 cylinder helps prevent picking. Keyed alike padlocks available to order to match other locks with the W1 cylinder.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 3/4in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KABLK Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with black bumper and a 3/4in (19mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 3/4in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KABLU Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with blue bumper and a 3/4in (19mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 3/4in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KAGRN Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with green and a 3/4in (19mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 3/4in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KALF Laminated Steel Padlocks, Keyed Alike - multiple locks open with the same key - feature a 1-9/16in (40mm) reinforced laminated steel lock body providing extra strength and a 1-1/2in (38mm) tall, 9/32in (7mm) diameter hardened steel shackle for excellent cut resistance. Dual ball bearings locking for maximum pry resistance making it ideal for industrial applications and the non-rekeyable, 4-pin W1 cylinder helps prevent picking. Keyed alike padlocks available to order to match other locks with the W1 cylinder.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 1-1/2in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KALFBLK Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with black bumper and a 1-1/2in (38mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 1-1/2in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KALFBLU Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with blue bumper and a 1-1/2in (38mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 1-1/2in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KALFGRN Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with green bumper and a 1-1/2in (38mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 1-1/2in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KALFRED Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with red bumper and a 1-1/2in (38mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 1-1/2in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KALFWHT Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with white bumper and a 1-1/2in (38mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 1-1/2in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KALFYLW Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with yellow bumper and a 1-1/2in (38mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 1-1/2in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KALH Laminated Steel Padlocks, Keyed Alike - multiple locks open with the same key - feature a 1-9/16in (40mm) reinforced laminated steel lock body providing extra strength and a 2in (51mm) tall, 9/32in (7mm) diameter hardened steel shackle for excellent cut resistance. Dual ball bearings locking for maximum pry resistance making it ideal for industrial applications and the non-rekeyable, 4-pin W1 cylinder helps prevent picking. Keyed alike padlocks available to order to match other locks with the W1 cylinder.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 2in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KALFBLK Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with black bumper and a 2in (51mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 2in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KALFBLU Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with blue bumper and a 2in (51mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 2in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KALFGRN Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with green bumper and a 2in (51mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 2in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KALFRED Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with red bumper and a 2in (51mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 2in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KALFWHT Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with white bumper and a 2in (51mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 2in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KALFYLW Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with yellow bumper and a 2in (51mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 2in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KARED Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with red bumper and a 3/4in (19mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security. Master keyed - a master key opens all the locks in the system although each lock has its own unique key.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 3/4in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KAWHT Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with white bumper and a 3/4in (19mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security. Master keyed - a master key opens all the locks in the system although each lock has its own unique key.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 3/4in |
Shackle Width (C) | 5/8 |
The Master Lock No. 3KAYLW Laminated Steel Padlock, Keyed Alike – multiple locks open with the same key – features a 1-9/16in (41mm) wide reinforced laminated steel body with yellow bumper and a 3/4in (19mm) tall, 9/32in (7mm) diameter shackle. Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security. Master keyed - a master key opens all the locks in the system although each lock has its own unique key.
Keying | Keyed Alike |
Engravable | No |
Body Width | 1-9/16 |
Body Width (Metric) | 40 |
Shackle Diameter (A) | 9/32 |
Shackle Diameter (A) (Metric) | 7 |
Shackle Height (B) | 3/4in |
Shackle Width (C) | 5/8 |