The Master Lock No. 3QCOM includes four (4) No. 3 Laminated Steel Padlocks, keyed alike – the same key opens all three locks – in a carded package for showroom display. The No. 3 features 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.