Master Lock 140D Brass Padlock - Heavy Duty
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Master Lock 140D Brass Padlock

3.2
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update Last updated: Mar 6, 2026
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description Master Lock 140D Brass Padlock Overview

The Master Lock 140D is a small, brass padlock often misidentified as heavy-duty due to its solid construction. While it is durable for a small lock, it is easily defeated by bolt cutters and basic lock-picking tools. It is suitable for securing a gym locker or a small toolbox, but it provides no real security against a determined intruder. It is included here as a comparison point for what is often marketed as 'heavy-duty' in consumer hardware stores versus actual industrial-grade security equipment.

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