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Master Lock 1-5/16 in. H X 1-9/16 in. W X 1-1/2 in. L Steel Double Locking Exterior Padlock

Master Lock 1-5/16 in. H X 1-9/16 in. W X 1-1/2 in. L Steel Double Locking Exterior Padlock

Double locking at both heel and toe keeps this steel padlock resistant to prying, and it's keyed alike for multi-lock convenience.
Master Lock MPN 3KA#3918 In Stock & Ready to Ship
$71.94
$11.99 each · sold by the case of 6 Free shipping on orders over $75
Ships within 24 hours · most orders arrive in about 2 business days
Cases of 6 · Order in multiples of 6

Sold by the Case

$71.94 per case of 6

Save $10.80 on orders $75+. Spend $75 or more to unlock 15% off every case — applied automatically at checkout. Free shipping at $75.

Ships as a complete case of 6. Free shipping on orders $75 and up.

About Product Overview

This Master Lock 3918 padlock is built for everyday exterior use, from gates and sheds to lockers and toolboxes. The steel body pairs with a double locking mechanism at heel and toe, so the shackle resists prying and cutting from both sides. It's keyed alike, making it a solid pick when you need several locks that open with one key across a property or job site.

  • Lock Material: Steel
  • Locking Mechanism: Double Locking
  • Combination Type: Keyed, Keyed Alike
  • Shackle Diameter: 9/32" / Clearance: 5/8"

The Details Specifications

Brand Master Lock
Model / MPN 3KA#3918
UPC 071649027420
Weight 3 lbs
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

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01

Who's actually selling it

The brand name is on the listing. A different company is in the seller field. Those aren't the same thing, and the second one is who you're buying from.

02

Whether the warranty survives

Most manufacturers only honor a warranty when the unit came through an authorized dealer. We're authorized for Master Lock. A third-party marketplace seller usually isn't.

03

Where the box came from

Gray-market stock, returns repackaged as new, and outright fakes move through marketplaces constantly. It all looks identical in the photo. It stops looking identical when it fails.

04

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The big boxes don't care if your hardware store survives.

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Authorized dealer · Master Lock

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