A turn of excellence

Well-rounded solutions

Made in America isn’t just a slogan at Sterling Padlocks.

It means that we’re focused on protecting the institutions that make America great—from electric and water utilities and trucking companies to Department of Defense installations.

Our performance-driven, affordable padlocks solve problems by supporting our clients’ specific challenges to:

  • Impact costs
  • Meet schedules
  • Drive performance

We live here too.

Sterling is an iconic, multi-generational brand based in North Minneapolis. Trends come and go, but we’ve been producing high-quality, better-priced padlocks since 1968 so you know we’ll be around for as long as you need us.

About Us

Sterling Across the U.S.

Local image U.S map where the local is image

One good turn deserves another.

Sterling keyed padlocks, one-shot seals, and disposable locks are made for almost any industrial application, including utility, cable, transportation, manufacturing and more. Our one-key, one-turn circular designs are the choice of professionals for easy placement and removal. They’re one-of-a-kinds. But which one is right for you.

Made of either brass or zinc-plated steel, Sterling Standard Locks resist corrosion and all kinds of weather. A variety of customization options including keyed-alike, keyed-different or master-keyed entry will keep your powder—and just about anything else—dry.

Sterling Keyed Padlocks

Keyed Padlocks come with either their own keys or keyed to open with one master. For even greater security ask for these options:

Customization Options:

  • Case-hardened shackle
  • Color coding
  • 9-inch attached mounting chain
  • Serialization

This option may be serialized and customized for additional security and identification.

Junior Padlocks:

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Junior Padlock: Steel

  • Shackle Diameter: 1/4” (6.4 mm)
  • Outer Diameter: 1 13/16” (46.0 mm)
  • Shackle Gap: 19/32” (15.1 mm)
Download PDF
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Junior Padlock: Brass Hardened Shackle

  • Shackle Diameter: 1/4” (6.4 mm)
  • Outer Diameter: 1 13/16” (46.0 mm)
  • Shackle Gap: 19/32” (15.1 mm)
Download PDF
padlock image

Junior Padlock: Brass

  • Shackle Diameter: 1/4” (6.4 mm)
  • Outer Diameter: 1 13/16” (46.0 mm)
  • Shackle Gap: 19/32” (15.1 mm)
Download PDF

Senior Padlocks:

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Senior Padlock: Steel

  • Shackle Diameter: 5/16” (7.9 mm)
  • Outer Diameter: 2 3/8” (60.3 mm)
  • Shackle Gap: 43/64” (17.1 mm)
Download PDF
padlock image

Senior Padlock: Brass Hardened Shackle

  • Shackle Diameter: 5/16” (7.9 mm)
  • Outer Diameter: 2 3/8” (60.3 mm)
  • Shackle Gap: 43/64” (17.1 mm)
Download PDF
padlock image

Junior Padlock: Brass

  • Shackle Diameter: 5/16” (7.9 mm)
  • Outer Diameter: 2 3/8” (60.3 mm)
  • Shackle Gap: 43/64” (17.1 mm)
Download PDF

Sterling Disposable Enclosure Locks

The Disposable Enclosure Locks offer affordable one-time use solutions that can be customized to meet your security needs. With aluminum bodies, Alumoweld shackles and aluminum screws, these two-screw models have been successfully tested to more than 1200 points.

Perfectly engineered for:

  • Areas that are not accessed often
  • Situations where most padlocks would bust the budget
  • Areas where wire seals won’t do
  • Vandalism prevention
  • Liability protection
  • When you don’t want to keep track of a key

This option may be serialized and customized for additional security and identification.

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DL-1S-3

  • One screw model with 3” shackle
  • Serializing and customizing available
  • Stop keeps body in position for convenient removal
Download PDF
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DL-2S-3

  • Two screw model with 3” shackle
  • Serializing and customizing available
  • Stop keeps body in position for convenient removal
Download PDF
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DL-1S-2

  • One screw model with 2” shackle
  • Serializing and customizing available
  • Stop keeps body in position for convenient removal
Download PDF

Sterling One-Shot Seals

The One-Shot Seals sit at the top of the seal family for their competitive pricing, and weather & corrosion-resistant steel construction. They go on fast without tools, but require a secure tool for removal so you know whether the lock has been tampered with.

Perfectly engineered for:

  • Meter socket sealing rings
  • Pad mounted utility equipment
  • Cable boxes
  • Cargo containers
  • Truck trailers
  • Railroad cars
  • Available in two sizes

Red-Caps are standard on senior one-shots to prevent unintentional closure.
This option may be serialized and customized for additional security and identification.

padlock image

Junior One-Shot: Steel

  • Shackle Diameter: 1/4” (6.4 mm)
  • Outer Diameter: 1 13/16” (46.0 mm)
  • Shackle Gap: 19/32” (15.1 mm)
Download PDF
padlock image

Junior One-Shot: Steel w/ Red Cap

  • Shackle Diameter: 1/4” (6.4 mm)
  • Outer Diameter: 1 13/16” (46.0 mm)
  • Shackle Gap: 19/32” (15.1 mm)
Download PDF
padlock image

Senior One-Shot: Steel w/ Red Cap

  • (Red cap standard)
  • Shackle Diameter: 5/16” (7.9 mm)
  • Outer Diameter: 2 3/8” (60.3 mm)
  • Shackle Gap: 43/64” (17.1 mm)
Download PDF