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 locking levers provide extra 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.

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 looks – accepts standard SFIC OEM cores. The exclusive cover protects from water, ice, dirt and grime.

The Master Lock No. 7041 ProSeries® Solid Body Padlock features a 1-3/4in (44mm) heavy hardened steel body with chrome rustproofing and a 1-3/16in (30mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. Padlock is available with or without core with choice of 16 Small Format Interchangeable Cores to match this padlock to your door locks. Designed for commercial/industrial applications.