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Commercial Security

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MASTER LOCK 6421 PROSERIES WEATHER TOUGH LAMINATED STEEL 6421 2-1/8in (54mm) Wide ProSeries® Weather Tough® Laminated Steel Rekeyable Interchangeable Core Padlock The Master Lock No. 6421 ProSeries® Weather Tough® Covered Laminated Padlock features a 2-1/8in (54mm) 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. Padlock is available with or without core with a choice of 16 Small Format Interchangeable Cores to match this padlock to your door... Commercial Security
MASTER LOCK 6427 PROSERIES WEATHER TOUGH LAMINATED STEEL 6427 2-5/8in (67mm) Wide ProSeries® Weather Tough® Laminated Steel Rekeyable Interchangeable Core Padlock The Master Lock No. 6427 ProSeries® Weather Tough® Covered Laminated Padlock features a 2-5/8in (67mm) heavy steel body to withstand physical attack and a 1-3/8in (35mm) tall, 7/16in (11mm) diameter hardened boron alloy shackle for superior cut resistance. Padlock is available with or without core with a choice of 16 Small Format Interchangeable Cores to match this padlock to your door... Commercial Security
MASTER LOCK 6521 PROSERIES SHROUDED LAMINATED STEEL 6521 2-1/8in (54mm) Wide ProSeries® Shrouded Laminated Steel Rekeyable Interchangeable Core Padlock The Master Lock No. 6521 ProSeries® Weather Tough® Shrouded Padlock features a 2-1/8in (54mm) heavy steel body to withstand physical attack and a 3/4in (19mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. Padlock is available with or without core with a choice of 16 Small Format Interchangeable Cores to match this padlock to your door looks – accepts... Commercial Security
MASTER LOCK 6527 PROSERIES SHROUDED LAMINATED STEEL 6527 2-5/8in (67mm) Wide ProSeries® Shrouded Laminated Steel Rekeyable Interchangeable Core Padlock The Master Lock No. 6527 ProSeries® Weather Tough® Shrouded Padlock features a 2-5/8in (67mm) heavy steel body to withstand physical attack and a 3/4in (19mm) tall, 7/16in (11mm) diameter hardened boron alloy shackle for superior cut resistance. Padlock is available with or without core with a choice of 16 Small Format Interchangeable Cores to match this padlock to your door looks – accepts... Commercial Security
MASTER LOCK 6621 LAMINATED PADLOCK 6621 2-1/8in (54mm) Wide ProSeries® Weather Tough® Laminated Steel Rekeyable Key-in-Knob Padlock The Master Lock No. 6621 ProSeries® Weather Tough® Covered Laminated Padlock features a 2-1/8in (54mm) 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. Padlock is available with our without cylinder to key at your facility with a choice of 22 Key-in-Knob keyways to match this padlock to your... Commercial Security
MASTER LOCK 6627 LAMINATED PADLOCK 6627 2-5/8in (67mm) Wide ProSeries® Weather Tough® Laminated Steel Rekeyable Key-in-Knob Padlock The Master Lock No. 6627 ProSeries® Weather Tough® Covered Laminated Padlock features a 2-5/8in (67mm) heavy steel body to withstand physical attack and a 1-3/8in (35mm) tall, 7/16in (11mm) diameter hardened boron alloy shackle for superior cut resistance. Padlock is available with our without cylinder to key at your facility with a choice of 22 Key-in-Knob keyways to match this padlock to your... Commercial Security
MASTER LOCK 6721 LAMINATED PADLOCK 6721 2-1/8in (54mm) Wide ProSeries® Shrouded Laminated Steel Rekeyable Key-in-Knob Padlock The Master Lock No. 6721 ProSeries® Weather Tough® Shrouded Padlock features a 2-1/8in (54mm) heavy steel body to withstand physical attack and a 3/4in (19mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. Padlock is available with our without cylinder to key at your facility with a choice of 22 Key-in-Knob keyways to match this padlock to your security door locks.... Commercial Security
MASTER LOCK 6727 LAMINATED PADLOCK 6727 2-5/8in (67mm) Wide ProSeries® Shrouded Laminated Steel Rekeyable Key-in-Knob Padlock The Master Lock No. 6727 ProSeries® Weather Tough® Shrouded Padlock features a 2-5/8in (67mm) heavy steel body to withstand physical attack and a 3/4in (19mm) tall, 7/16in (11mm) diameter hardened boron alloy shackle for superior cut resistance. Padlock is available with our without cylinder to key at your facility with a choice of 22 Key-in-Knob keyways to match this padlock to your security door locks.... Commercial Security
MASTER LOCK 6830KA PROSERIES SOLID BRASS LOCK 6830 1-9/16in (40mm) Wide ProSeries® Solid Brass Rekeyable Pin Tumbler Padlock, Keyed Alike The Master Lock No. 6830KA ProSeries® Solid Body Padlock, keyed alike - multiple locks open with the same key – features a 1-9/16in (40mm) wide solid brass body to provide extra resistance in caustic, corrosive environments and a 1-1/16in (27mm) tall, 1/4in (6mm) diameter hardened boron alloy shackle for superior cut resistance. Designed for commercial/industrial applications, a dual ball locking... Commercial Security
MASTER LOCK 6830KALF PROSERIES SOLID BRASS LOCK 6830KALF 1-9/16in (40mm) Wide ProSeries® Solid Brass Rekeyable Pin Tumbler Padlock with 1-9/16in (40mm) Shackle, Keyed Alike The Master Lock No. 6830KALF ProSeries® Solid Body Padlock, keyed alike - multiple locks open with the same key – features a 1-9/16in (40mm) wide solid brass body to provide extra resistance in caustic, corrosive environments and a 1-9/16in (40mm) tall, 1/4in (6mm) diameter hardened boron alloy shackle for superior cut resistance. Designed for commercial/industrial... Commercial Security
MASTER LOCK 6830KALT PROSERIES SOLID BRASS LOCK 6830KALT 1-9/16in (40mm) Wide ProSeries® Solid Brass Rekeyable Pin Tumbler Padlock with 3in (76mm) Shackle, Keyed Alike The Master Lock No. 6830KALT ProSeries® Solid Body Padlock, keyed alike - multiple locks open with the same key – features a 1-9/16in (40mm) wide solid brass body to provide extra resistance in caustic, corrosive environments and a 3in (76mm) tall, 1/4in (6mm) diameter hardened boron alloy shackle for superior cut resistance. Designed for commercial/industrial applications, a... Commercial Security
MASTER LOCK 6830LF PROSERIES SOLID BRASS LOCK 6830LF 1-9/16in (40mm) Wide ProSeries® Solid Brass Rekeyable Pin Tumbler Padlock with 1-9/16in (40mm) Shackle The Master Lock No. 6830LF ProSeries® Solid Body Padlock features a 1-9/16in (40mm) wide solid brass body to provide extra resistance in caustic, corrosive environments and a 1-9/16in (40mm) tall, 1/4in (6mm) diameter hardened boron alloy shackle for superior cut resistance. Designed for commercial/industrial applications, a dual ball locking mechanism resists pulling and prying and a... Commercial Security
MASTER LOCK 6830LT PROSERIES SOLID BRASS LOCK 6830LT 1-9/16in (40mm) Wide ProSeries® Solid Brass Rekeyable Pin Tumbler Padlock with 3in (76mm) Shackle The Master Lock No. 6830LT ProSeries® Solid Body Padlock features a 1-9/16in (40mm) wide solid brass body to provide extra resistance in caustic, corrosive environments and a 3in (76mm) tall, 1/4in (6mm) diameter hardened boron alloy shackle for superior cut resistance. Designed for commercial/industrial applications, a dual ball locking mechanism resists pulling and prying and a high... Commercial Security
MASTER LOCK 6840 PROSERIES SOLID BRASS LOCK 6840 1-3/4in (44mm) Wide ProSeries® Solid Brass Rekeyable Pin Tumbler Padlock The Master Lock No. 6840 ProSeries® Solid Body Padlock features a 1-3/4in (44mm) wide solid brass body to provide extra resistance in caustic, corrosive environments and a 1-3/16in (30mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. Designed for commercial/industrial applications, a dual ball locking mechanism resists pulling and prying and a high security, rekeyable 5-pin... Commercial Security
MASTER LOCK 6840B PROSERIES SOLID BRASS LOCK 6840B 1-3/4in (44mm) Wide ProSeries® Solid Brass Rekeyable Pin Tumbler Padlock, Brass Shackle The Master Lock No. 6840B ProSeries® Solid Body Padlock features a 1-3/4in (44mm) wide solid brass body to provide extra resistance in caustic, corrosive environments and a 1-3/16in (30mm) tall, 5/16in (8mm) diameter brass shackle for superior corrosion resistance. Designed for commercial/industrial applications, a dual ball locking mechanism resists pulling and prying and a high security, rekeyable... Commercial Security
MASTER LOCK 6840KA PROSERIES SOLID BRASS LOCK 6840KA 1-3/4in (44mm) Wide ProSeries® Solid Brass Rekeyable Pin Tumbler Padlock, Keyed Alike The Master Lock No. 6840KA ProSeries® Solid Body Padlock, keyed alike – multiple locks open with the same key – features a 1-3/4in (44mm) wide solid brass body to provide extra resistance in caustic, corrosive environments and a 1-3/16in (30mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. Designed for commercial/industrial applications, a dual ball locking... Commercial Security
MASTER LOCK 6840KAB PROSERIES SOLID BRASS LOCK 6840KAB 1-3/4in (44mm) Wide ProSeries® Solid Brass Rekeyable Pin Tumbler Padlock, Brass Shackle, Keyed Alike The Master Lock No. 6840KAB ProSeries® Solid Body Padlock, keyed alike – multiple locks open with the same key – features a 1-3/4in (44mm) wide solid brass body to provide extra resistance in caustic, corrosive environments and a 1-3/16in (30mm) tall, 5/16in (8mm) diameter brass shackle for superior corrosion resistance. Designed for commercial/industrial applications, a dual ball... Commercial Security
MASTER LOCK 6840KALJ PROSERIES SOLID BRASS LOCK 6840KALJ 1-3/4in (44mm) Wide ProSeries® Solid Brass Rekeyable Pin Tumbler Padlock with 2-7/16in (61mm) Shackle, Keyed Alike The Master Lock No. 6840KALJ ProSeries® Solid Body Padlock, keyed alike – multiple locks open with the same key – features a 1-3/4in (44mm) wide solid brass body to provide extra resistance in caustic, corrosive environments and a 2-7/16in (61mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. Designed for commercial/industrial... Commercial Security
MASTER LOCK 6840LF PROSERIES SOLID BRASS LOCK 6840LF 1-3/4in (44mm) Wide ProSeries® Solid Brass Rekeyable Pin Tumbler Padlock with 1-9/16in (38mm) Shackle The Master Lock No. 6840LF ProSeries® Solid Body Padlock features a 1-3/4in (44mm) wide solid brass body to provide extra resistance in caustic, corrosive environments and a 1-9/16in (40mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. Designed for commercial/industrial applications, a dual ball locking mechanism resists pulling and prying and a high... Commercial Security
MASTER LOCK 6840LJ PROSERIES SOLID BRASS LOCK 6840LJ 1-3/4in (44mm) Wide ProSeries® Solid Brass Rekeyable Pin Tumbler Padlock with 2-7/16in (61mm) Shackle The Master Lock No. 6840LF ProSeries® Solid Body Padlock features a 1-3/4in (44mm) wide solid brass body to provide extra resistance in caustic, corrosive environments and a 2-7/16in (61mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. Designed for commercial/industrial applications, a dual ball locking mechanism resists pulling and prying and a high... Commercial Security