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Key Number Key Number | Show |
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Key Number Key Number | Hide |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Manufacturer Manufacturer |
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Bumper Color Bumper Color |
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![]() | Gray |
Body Construction Body Construction |
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Key Locking Mechanism Key Locking Mechanism |
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Key Type Key Type |
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Keyhole Location Keyhole Location |
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Number of Tumbler Pins Number of Tumbler Pins |
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Shackle Material Shackle Material |
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Body Material Body Material |
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Number of Keys Included Number of Keys Included |
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Manufacturer Model Number Manufacturer Model Number |
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Opens With Opens With |
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![]() | Key |
Shackle Style Shackle Style |
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![]() | Standard |
Keying Keying |
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Keyed Alike |
About Padlocks
More
Padlock Keys

Replace individual and get master padlock keys.
Key Number | Key Type | Each | |
Master Lock | |||
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3447 | Additional/Replacement | 00000000 | 000000 |
Keyed Alike Padlocks

B

Choose these locks if you need several locks that open with the same key. If the lock or key with the key number you want isn’t listed, order the "Other Key Numbers" and specify your desired key number.
Hardened steel shackles are stronger than steel shackles.
Pin-tumbler key locking mechanisms are the most difficult to pick. When choosing between padlocks with four or five pins, the lock with five pins is harder to pick.
For technical drawings and 3-D models, click on a part number.
Padlocks | |||||||||||||||||
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Shackle | Body | Each | Additional Keys | ||||||||||||||
Vertical Clearance | Horizontal Clearance | Dia. | Material | Ht. | Wd. | Thick. | Bumper Color | No. of Keys Included | Key Locking Mechanism | No. of Tumbler Pins | Key No. | 1-5 | 6-Up | Each | |||
Laminated Steel Body | |||||||||||||||||
Master Lock 3 | |||||||||||||||||
B | 3/4" | 5/8" | 9/32" | Hardened Steel | 1 3/8" | 1 9/16" | 1 1/16" | Gray | 2 | Pin Tumbler | 4 | 3447 | 00000000 | 000000 | 000000 | 00000000 | 000000 |