American Lock A1166MK Rekeyabl...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$42.73
American Lock American Lock A1166MK Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Keyed Different (Master Keyed) AME-A1166MK

American Lock A1166MK Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Keyed Different (Master Keyed)

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Model: AME-A1166MK BLK 2KEY
$42.73
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$42.73
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AMERICAN LOCK A1166MK REKEYABLE PADLOCK WITH BORON SHACKLE 1-1/2IN (38MM) WIDE SOLID ALUMINUM OVERVIEW

A1166MK Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum. Rekeyable Padlocks - 1-1/2in (38mm) Wide Solid Aluminum.

The American Lock No. A1166MK Aluminum Padlock features a 1-1/2in (38mm) wide black anodized aluminum body with a 1-1/2in (38mm) tall, 1/4in (6mm) diameter chrome plated, boron alloy shackle for superior cut resistance. Featuring a 6-pin APTC14 cylinder, the anodized finish makes padlock suitable for lockout in food processing facilities and corrosion resistant finish ideal for tough environments.

Buy the American Lock A1166MK Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum for easy installation and dependable door hardware solution.

AMERICAN LOCK A1166MK REKEYABLE PADLOCK WITH BORON SHACKLE 1-1/2IN (38MM) WIDE SOLID ALUMINUM PRODUCT FEATURES

  • American Lock Aluminum Safety Padlock
  • 1-1/2in (38mm) wide black anodized aluminum body, 1/4in (6mm) diameter chrome plated, boron alloy shackle with 1-1/2in (38mm) clearance
  • Anodized finish suitable for lockout tagout in food processing facilities
  • Corrosion resistant finish for tough environments
  • High visibility color plus high security
  • Keyed different, 6-pin tumbler with over 40,000 available key changes rekeyable cylinder
  • Lockout Tagout
  • Food Processing
  • Safety Lockout/Tagout
  • Padlock Identification
  • Padlock Shackle Options
  • Safety Padlock Keying

A1166MK REKEYABLE PADLOCK WITH BORON SHACKLE COLOR VARIATION

American Lock A1166MKBLU Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum
American Lock A1166MKBRN Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum
American Lock A1166MKCLR Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum
American Lock A1166MKGRN Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum
American Lock A1166MKORJ Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum
American Lock A1166MKPRP Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum
American Lock A1166MKRED Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum
American Lock A1166MKYLW Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum

AMERICAN LOCK REKEYABLE PADLOCKS - 1-1/2IN (38MM) WIDE SOLID ALUMINUM COLLECTION

American Lock A1165 (A1165KD) Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Keyed Different
American Lock A1165UN Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Uncombinated
American Lock A1165KZ Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Zero-Bitted
American Lock A1165KA Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Keyed Alike
American Lock A1165MK Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Keyed Different (Master Keyed)
American Lock A1165KAMK Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Keyed Alike (Master Keyed)
American Lock A1166 (A1166KD) Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Keyed Different
American Lock A1166UN Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Uncombinated
American Lock A1166KZ Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Zero-Bitted
American Lock A1166KA Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Keyed Alike
American Lock A1166MK Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Keyed Different (Master Keyed)
American Lock A1166KAMK Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Keyed Alike (Master Keyed)
American Lock A1167 (A1167KD) Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Keyed Different
American Lock A1167UN Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Uncombinated
American Lock A1167KZ Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Zero-Bitted
American Lock A1167KA Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Keyed Alike
American Lock A1167MK Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Keyed Different (Master Keyed)
American Lock A1167KAMK Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum, Keyed Alike (Master Keyed)

RESOURCES & DOWNLOADS

American Lock A1166MK Rekeyable Padlock with Boron Shackle 1-1/2in (38mm) Wide Solid Aluminum Catalog

Manufacturer Resources

Product Specs

Subcategory:
Lockout Padlocks & Accessories
Shelf Pack Qty:
6
Master Carton Qty:
24
Shackle Width:
25/32"
Shackle Diameter:
1/4"
Keyed:
Yes
Product Group:
Other / Miscellaneous Hardware
Product Subgroup:
Padlocks
Product Type:
Padlocks
Commercial/Residential:
Commercial
Product Model:
A1166MK
Product Shackle Length:
1-1/2"
Product Style:
Rekeyable Padlocks - 1-1/2in (38mm) Wide
Product Category:
Other / Miscellaneous Hardware
Product Substrate:
Aluminum
Product Width:
1-1/2"
Department:
Door Hardware

American Lock AME-A1166MK BLK 2KEY – Frequently Asked Questions

1) What does the MK in American Lock A1166MK mean for keying?
MK means master keyed. Each A1166MK padlock ships keyed different from the others, so every lock has its own change key, while a single master key you specify operates all of them. That is the standard arrangement for lockout/tagout programs where each worker holds one unique key but a supervisor needs override. The cylinder is a 6-pin rekeyable APTC14 with over 40,000 key changes, so the locks can be re-pinned in house later.
2) Will a 1/4 inch shackle padlock fit my lockout hasp or breaker cleat?
The A1166 aluminum padlock uses a 1/4 inch diameter shackle with 1-1/2 inch clearance under the crossbar and a 25/32 inch shackle width, and the body is 1-1/2 inch wide. Standard steel lockout hasps and breaker lockout devices take a 1/4 inch shackle, so it drops in. If your device only accepts a thinner shank, you want something like the ABUS 72/30, which uses a 3/16 inch shackle on a 1-1/4 inch body.
3) What is the closest equivalent to the American Lock A1166MK aluminum safety padlock from another brand?
The ABUS 74/40 insulated safety padlock is the nearest match on the core numbers: it uses a 6-pin cylinder with a 1/4 inch shackle diameter and a 1-1/2 inch body width, the same 1/4 inch shackle diameter and 1-1/2 inch body width carried by the A1166MK. The difference is body construction - the A1166MK body is aluminum, while the 74/40 is an insulated body in the ABUS 74 Series.
4) I need a smaller lockout padlock than the A1166MK for tight hasps - what else is there?
The ABUS 72/30 anodized aluminum safety padlock is the smaller option, with a 1-1/4 inch body width and a 3/16 inch shackle diameter against the A1166MK's 1-1/2 inch body and 1/4 inch shackle. Both are anodized aluminum safety padlocks, so the finish behavior is similar; the 72/30 simply takes up less room on the hasp and passes a thinner shackle.
5) My facility standardizes on interchangeable core - is the A1166MK the wrong lock for that?
The A1166MK is a rekeyable padlock with a fixed 6-pin APTC14 cylinder, so it is rekeyed at the pinning rather than by swapping a core. If your keying program runs on removable cores, the Sargent 60-858-2 removable core padlock, with a 2 inch stainless steel shackle, is the one that drops into that system. Sargent also lists the 758 as a key retaining standard padlock and the 858 as non-key retaining, both with a US4 satin brass finish, if you want fixed-cylinder Sargent instead.
6) For an outdoor gate exposed to weather, is the A1166MK the right choice or should I look at something else?
The A1166MK uses an anodized aluminum body with a chrome plated boron alloy shackle and a corrosion resistant finish, which suits tough environments and food processing lockout. For a fully weather-focused build, the Medeco 521 G8R weather-tight padlock has a solid stainless steel body and is supplied less pop-out cylinder, and the Medeco 54515G XT is an electronic indoor/outdoor padlock with a 5/16 inch shackle diameter supplied with cylinder. Those two move you to stainless or electronic credentials rather than aluminum with a mechanical key.
7) Which padlocks look like a substitute for the A1166MK but will not work for color-coded lockout tagout?
Brass and stainless bodied padlocks are the common mis-pick. The Sargent 758 and 858 are US4 satin brass, the Sargent 82-856 has a 2 inch by 2 inch brass case with stainless shackle, the Medeco 5260 is a brass body padlock in satin chrome with a 7/16 inch shackle diameter, and the Schlage KS23D/KS23F is a brass padlock with a 5/16 inch shackle. None of those give you the per-worker color identification the A1166MK does, which is offered in black, blue, brown, clear, green, orange, purple, red and yellow lockbody colors.
8) Can I get American Lock A1166MK padlocks in different colors for departmental lockout?
Nine body colors are offered: black, blue, brown, clear, green, orange, purple, red and yellow. Anodized aluminum takes the color through the finish rather than a coating, so it holds up in wash-down and outdoor areas. Facilities typically assign a color per trade, shift, or department, and the color codes are called out in the part number (A1166MKRED, A1166MKBLU, and so on).
9) Is this padlock OK for a food processing plant?
Yes. The anodized aluminum finish is called out as suitable for lockout in food processing facilities, and it is corrosion resistant for wash-down and other harsh environments. The lightweight aluminum body will not mar equipment the way a steel-bodied lock can.
10) How many keys come with each American Lock A1166MK padlock, and can I order fewer?
Standard is 2 keys per lock. You can also order 1 key per lock, 3, or 4, and there is a 0 keys per lock option for programs that order keys separately or issue them from a central board. Pick the count when you order, since it is a build option rather than something you change later.
11) What is the difference between the American Lock A1165, A1166 and A1167?
All three are the same 1-1/2 inch wide solid aluminum rekeyable body; the shackle height is what changes. The A1166 carries a 1-1/2 inch shackle. A1165 is the shorter-shackle version and A1167 the longer one, so choose by how much clearance you need through the hasp. Each of the three is offered keyed different, keyed alike, master keyed, keyed alike master keyed, uncombinated, and zero-bitted.
12) Is a boron shackle worth it over a standard steel one for outdoor gates and lockers?
The A1166 shackle is chrome plated boron alloy, chosen for cut resistance, on a corrosion resistant anodized aluminum body. That combination suits exposed and wet locations. If you want a solid stainless steel body instead of aluminum, the Medeco 521 G8R weather-tight padlock is the alternative; for a cushioned lock that will not scratch painted equipment, the ABUS 76/40 uses a plastic-covered aluminum core.
13) Can I rekey American Lock A1166MK padlocks myself instead of buying new ones?
Yes, the cylinder is rekeyable. It is a 6-pin tumbler APTC14 with over 40,000 available key changes, so a locksmith or an in-house shop can re-pin locks when an employee leaves or a master system gets expanded. If you want to pin them from scratch on receipt, order the zero-bitted (A1166KZ) or uncombinated (A1166UN) version instead of the factory master keyed A1166MK.
14) I need a longer shackle than the A1166MK gives me - what should I order instead?
The A1166MK shackle clearance is 1-1/2 inches, which is sized for standard hasps and lockout devices. If you need to reach around a larger hasp or a chain link, the Sargent 60-858-2 carries a 2 inch stainless steel shackle. Note that the 60-858-2 is a removable core padlock, so it fits a core-based keying program rather than the rekeyable pinned cylinder in the A1166MK.
15) Does any comparable padlock retain the key when open, the way I need for lockout discipline?
Key retention is called out on the Sargent side: the 758 is a key retaining standard padlock, while the 858 and the KESO Series 82-856 are non-key retaining, as is the Medeco 54515G XT electronic padlock. The A1166MK is a keyed different master keyed aluminum safety padlock built for lockout tagout in food processing facilities, ordered with 0, 1, 3, 4 or the standard 2 keys per lock.
16) Can I get an American Lock aluminum safety padlock with a chain attached?
Yes. A #40 sash chain, 9 inches (229mm) long and zinc plated, can be ordered attached, or you can take the lock with no chain. The chain keeps the padlock tethered to the hasp or cart so it does not walk off between lockouts.
17) How many American Lock A1166MK padlocks come in a box?
Shelf pack is 6 locks and the master carton holds 24. Useful if you are standardizing a facility and want to order in even cartons rather than singles.
How fast can I get the American Lock AME-A1166MK BLK 2KEY delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the American Lock AME-A1166MK BLK 2KEY come with a warranty?
Absolutely. The American Lock AME-A1166MK BLK 2KEY is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the American Lock AME-A1166MK BLK 2KEY?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the American Lock AME-A1166MK BLK 2KEY from ZenSupply?
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