Master Lock Pro Series Hidden Shackle Padlocks, Keyed Alike 6271NKA-2 w/BumpStop Technology

Master Lock Pro Series Hidden Shackle Padlocks, Keyed Alike 6271NKA-2 w/BumpStop Technology

• This listing is for 2 keyed alike locks - 4 keys included. The hardened diecast zinc body is strong, durable and resists corrosion. Pro Series Padlocks are designed for Commercial/Industrial applications. Ideal for transportation, vending, gates, and industrial uses.
• These Locks FEATURE BumpStop Advanced Cylinder Technology (For explanation see more product details below).
• HIGH SECURITY 6-pin cyclinder for maximum pick resistance. Removable cylinder for replacement or repinning.
• BOLT CUTTER TOUGH - fully shielded hardened boron alloy shackle offers impossible to cut and pry resistance features.
• DIMENSIONS (see image) - A) 3/8 (10mm), B) 19/32 (15mm), C) 1-23/32 (44mm) Width 2-7/8 (73mm)

<b>FEATURING BumpStop TECHNOLOGY</b> - Lock bumping a surprisingly simple method of breaking in through locked doors and padlocks - is undoubtedly the newest emerging threat to personal property security. And virtually all locks in use today are particularly vulnerable to bumping. Until now... <br><br>BumpStopô Advanced Cylinder Technology employs an innovative, patent pending design which utilizes a unique reverse rake tapered driver pin, high performance springs and tightly machined cylinder chambers. During a bump attempt, this design prevents the transfer of force from the bump key to the pins and therefore blocks rotation of the cylinder so that the lock remains locked.<br><br> <p><b>ProSeriesÆ Reinforced Zinc Die-Cast</b></p> <p><b>Why Zinc Castings?</b> <br>For countless decorative and functional applications no other material and process can match the properties and economics of zinc die casting.</p> <p><b>Toughness:</b> <br>Few materials provide the strength and toughness of zinc alloys. Impact resistance is significantly higher than cast aluminum alloys, plastics, and grey cast iron.</p> <p><b>Strength & Ductility:</b> <br>Zinc alloys offer high strengths (to 60,000 psi) and superior elongation for strong designs and formability for bending, crimping and riveting operations.</p> <p><b>Anti-Sparking:</b> <br>Zinc alloys are non-sparking and suitable for hazardous location applications such as coal mines, tankers and refineries</p>