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Master Lock Manuals & User Guides

Master Lock is a global leader in security solutions, manufacturing authentic, enduring padlocks, combination locks, safes, and safety products for consumer and industrial use.

Tip: include the full model number printed on your Master Lock label for the best match.

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Official site: https://www.masterlock.com/
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Support phone: (520) 377-2804
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Master Lock manuals

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Master Lock manuals from online retailers

Master Lock Hasp/Hidden Shackle Padlock Combo 720-6271KA User Manual

720-6271KA • July 15, 2025

Comprehensive user manual for the Master Lock 720-6271KA Hasp/Hidden Shackle Padlock Combo. Includes detailed instructions for setup, operation, maintenance, troubleshooting, product specifications, and warranty information.

Master Lock Zinc 656EURDBLK Outdoor Combination Padlock Instruction Manual

656EURDBLK • July 13, 2025

The Master Lock No. 656EURDBLK Set-Your-Own Combination Padlock with override key features a 48mm wide covered zinc body for durability with a black finish. For outdoor use, ideal…

Master Lock Cable Lock Instruction Manual

8122D • July 12, 2025

Comprehensive instruction manual for the Master Lock 8122D Cable Lock, including setup, operation, maintenance, troubleshooting, specifications, and warranty information.

Master Lock Light Up Dial Key Safe 5425EURD User Manual

5425EURD • July 12, 2025

Comprehensive instructions for setup, operation, and maintenance of your Master Lock 5425EURD Light Up Dial Key Safe, including mounting, combination setting, and specifications.

Master Lock Keyed Padlock Instruction Manual

6321 • June 28, 2025

Official instruction manual for the Master Lock 6321 Keyed Padlock. This guide provides comprehensive details on setup, operating instructions, maintenance, troubleshooting, and detailed specifications for the 2-1/8"W black…