BEST 41B Series Steel Shackle ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$98.00
$57.74
BEST Best 41B Series Steel Shackle Padlock 3/8" Diameter BES-41B72T

BEST 41B Series Steel Shackle Padlock with 3/8" Diameter Shackle

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Model: 41B72T
$98.00
$57.74

In Stock (leaves warehouse same day if ordered before 3pm ET)

$98.00
$57.74
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BEST 41B Series Steel Shackle Padlock with 3/8" Diameter Shackle

Professional Interchangeable Core Padlock Solution

The BEST 41B Series Steel Shackle Padlock features a 3/8" diameter steel shackle with 7/8" shackle width and satin chromium plated finish. Built around BEST's standard removable interchangeable core system, this padlock integrates seamlessly with the entire BEST product line for comprehensive master keying capabilities. The stainless steel construction provides reliable security for commercial and industrial applications.

Professional Features & Benefits

  • Interchangeable Core System: Standard removable core allows immediate rekeying at minimal cost and integrates with most BEST product lines for unified master key systems.
  • Steel Shackle Construction: 3/8" diameter steel shackle with 7/8" width provides enhanced cut resistance and durability for demanding security applications.
  • Master Key Compatibility: Standardization permits integration with STANLEY/BEST locks of any type, size or style into one expandable master key system.
  • Versatile Configuration Options: Available with key retained or non-key retained operation, bronze or steel chains, and special case embossing for brass cases.
  • Corrosion Resistant Finish: Satin chromium plated finish (626) provides long-lasting protection against environmental exposure and wear.
  • Professional Security Features: Car seal compatibility and corrosion resistance options available for specialized security and environmental requirements.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Other / Miscellaneous Hardware
  • Product Group: Other / Miscellaneous Hardware
  • Product Lockbody Color: 626 - Satin Chromium Plated
  • Product Subgroup: Padlocks
  • Product Substrate: Stainless Steel
  • Product Type: Padlocks
  • Shackle Width: 7/8"
  • Subcategory: Padlocks

Installation & Operation

This padlock is designed for use with compatible BEST interchangeable core cylinders. Refer to manufacturer-provided installation instructions and core specifications for proper integration. Consult with a qualified locksmith or security professional for master key system design and core installation requirements.

Professional Applications

  • Commercial Building Security Systems
  • Industrial Facility Access Control
  • Equipment and Asset Protection
  • Storage and Warehouse Security
  • Educational Institution Safety Systems
  • Government and Municipal Facilities
  • Multi-Tenant Property Management

Why Choose BEST Quality?

BEST padlocks deliver professional-grade security with interchangeable core technology that enables comprehensive master key system integration. The steel shackle construction and satin chromium plated finish provide reliable performance in demanding commercial environments. Engineered for applications where standardized security and flexible rekeying capabilities are essential for operational efficiency.

Manufacturer Resources

B Series Padlocks

Product Specs

Product Group:
Other / Miscellaneous Hardware
Product Subgroup:
Padlocks
Subcategory:
Padlocks
Product Type:
Padlocks
Shackle Width:
7/8"
Product Lockbody Color:
626 - Satin Chromium Plated
Product Category:
Other / Miscellaneous Hardware
Product Substrate:
Stainless Steel
Department:
Door Hardware

BEST 41B72T – Frequently Asked Questions

1) Will a BEST 41B padlock fit my hasp, and what shackle sizes can I get?
The 41B Series padlock uses a 3/8 inch diameter steel shackle with a 7/8 inch shackle width, so the hasp staple or chain link it goes through has to clear 3/8 inch. Shackle length is an ordering choice: 3/4 inch, 1-1/2 inch, 2 inch, or 4 inch. The 3/4 inch length is the tight-to-the-hasp option that leaves little room for a cutter jaw; 4 inch is what you order when you are going around a gate chain, a thick hasp stack, or a cabinet handle. Measure the staple opening and the total thickness the shackle has to wrap before you pick the length.
2) Can a BEST 41B padlock be keyed into the BEST master key system we already run in our building?
That is the point of the 41B. It is built around BEST's standard removable interchangeable core, the same core format used across the BEST product line, so the padlock drops onto the same master key system as your door locks rather than living on a separate key. Rekeying is a core swap instead of a lock replacement. Have your locksmith or key system administrator confirm the keyway and core level you are running before the cores are cut.
3) What is the difference between key retained and non-key retained on a BEST 41B padlock, and which should I order?
Key retained is the T option and non-key retained is the L option on the 41B. With T, the key will not come out of the cylinder while the lock is open, so the padlock cannot be left hanging unlocked and the key cannot walk off to another lock. That suits lockers, gates, and anywhere a tech opens one lock at a time and needs to be forced to relock it. With L, the key pulls out whether the lock is open or closed, which is what you want when one person is opening a run of padlocks on a route and does not want the key trapped in the first one. Pick T for accountability, L for route work.
4) I need a padlock that will stand up to bolt cutters on an exposed gate. What options does the BEST 41B have?
Two device options address that on the 41B. XSPL gives you a cut resistant shackle in place of the standard 3/8 inch steel one. SH goes further, pairing the cut resistant shackle with a shrouded body that closes off most of the exposed shackle so there is little left for a jaw to bite. If the lock sits out on a yard gate or a container, order SH and pair it with the 3/4 inch shackle length so the shackle sits tight to the hasp. On an interior cabinet or an electrical panel the standard shackle is normally enough.
5) We standardize our building on one key system. Can padlocks be on the same system as the door locks?
Yes, and that is the reason a facility buys the 41B rather than a hardware store padlock. Because it takes the same BEST removable interchangeable core as the locks on the doors, the gate, cabinet, roof hatch, and equipment padlocks all sit under the same master key hierarchy, expandable as you add openings. Practically, that means one key ring for a maintenance tech instead of a padlock key ring plus a door key ring, and when someone leaves you pull and swap cores rather than replacing hardware.
6) What is the closest cross-brand match to the BEST 41B padlock for a facility that keys its padlocks to a removable core?
The Sargent 60-858-2 is the nearest counterpart. It is a removable core padlock with a 2 inch stainless steel shackle, so like the BEST 41B it takes a core a locksmith can pull and rekey rather than replacing the padlock. The 41B is built around the BEST standard removable interchangeable core, carries a 3/8 inch diameter steel shackle, and is offered in 3/4 inch, 1-1/2 inch, 2 inch and 4 inch shackle lengths. The deciding factor is the core format your system already runs on: the 41B core is the same one used across the BEST line so the padlocks fold into an existing BEST master key system, while the 60-858-2 is built for the Sargent removable core. Match the padlock to the cores your locksmith already pins and the padlock joins the system without a separate key.
7) I need padlocks where the key pulls out while the shackle is open. Which ones do that?
That is non-key retained operation, and the BEST 41B is built both ways: the L option is non-key retained and the T option is key retained. Across other brands, the Sargent 858 is a non-key retaining padlock with a stainless steel shackle in US4 satin brass, the Sargent 82-856 is non-key retaining with a 2 inch by 2 inch brass case and stainless steel shackle, and the Medeco 54515G is a non-key retaining padlock with a 5/16 inch shackle diameter. Non-key retained is what crews want on gates, equipment and lockers where the lock hangs open on the hasp while work is in progress and the key goes back in a pocket.
8) We want to control who opens a padlock and take that access away without recutting keys. What should we look at instead of the BEST 41B?
The Medeco 54515G is the electronic option in this family of padlocks. It is an XT electronic padlock for indoor and outdoor use, non-key retaining, with a 5/16 inch shackle diameter, supplied with its cylinder. Access is governed electronically rather than by the cut of a mechanical key. The BEST 41B answers the same problem mechanically: its standard removable interchangeable core is pulled and swapped to rekey immediately, and it shares the BEST core standard so padlocks, cylinders and locks across the site run on one expandable master key system. The trade is administrative. Electronic credentials are changed centrally per user; interchangeable cores are changed per lock by a locksmith and need no power or programming at the padlock.
9) How do I keep a padlock from getting lost or walked off when the gate is open?
The BEST 41B can be ordered tethered. M1 gets you a bronze chain and M5 a galvanized steel chain, both factory attached to the case, so the lock stays with the opening when it is off the hasp. Bronze is the option for wet or coastal exposure where a plain steel link will bleed rust down the gate; galvanized is the general-purpose choice. If you already run your own cable or chain, M is the case drilled version with no clevis or chain fitted so you can attach your own. Ordered without any of those, the padlock comes as a plain case.
10) Is the BEST 41B padlock suitable for outdoor use?
It is built for exposure. The lock body is stainless steel with a 626 satin chromium plated finish, which is the standard commercial finish for corrosion resistance and matches 626 door hardware elsewhere in the building. For wash-down areas, coastal sites, or anywhere the keyway collects grit and freezing rain, add the WC weather cover option, which puts a cover over the cylinder face. Pair WC with the M1 bronze chain if the padlock is tethered and sitting in salt air.
11) Our facility is on a Sargent keyway, not BEST. Is there a removable core padlock that matches it?
The 41B only makes sense if you are running BEST interchangeable cores. On a Sargent removable core system, the Sargent 60-858-2 is the equivalent play, a removable core padlock with a 2 inch stainless steel shackle. If you do not need removable core at all, the Sargent 758 is the key retaining version and the 858 the non-key retaining version, both in US4 satin brass. The decision is which core format your keying system is already built on, since the padlock has to accept that core or it defeats the whole system.
12) The 1/4 inch shackle padlocks on our yard gates keep getting cut. What has a heavier shackle?
The BEST 41B steps up to a 3/8 inch diameter steel shackle, and it can be ordered with the XSPL cut resistant shackle or the SH shrouded body if the gate is exposed. For comparison, the ABUS 74/40 and 76/40 both run a 1/4 inch shackle and the Schlage KS23D/KS23F a 5/16 inch. If you want more shackle than the 41B, the Medeco 5260 in the 52 Series carries a 7/16 inch shackle on a brass body with M3 key technology in satin chrome. Note that a bigger shackle needs a hasp staple that can pass it, so check the hasp before you go up a size.
13) Our policy is that the key cannot come out until the padlock is locked again. What is comparable to the BEST 41B on that?
The BEST 41B covers it with the T option, which is key retained, so the key stays captive until the shackle is closed. The Sargent 758 is a key retaining standard padlock in a US4 satin brass finish and does the same thing. Finish is the visible difference between them: the 41B lock body is 626 satin chromium plated over a stainless steel body, while the 758 is specified in US4 satin brass. Choose on which appearance matches the rest of the hardware on the site and on which key system the padlock has to answer to.
14) The spec on our drawing calls for a shackle heavier than 3/8 inch. What padlock goes above that?
The BEST 41B shackle is 3/8 inch in diameter with a 7/8 inch shackle width. If the drawing calls for more diameter, the Medeco 5260 is a 52 Series brass body padlock with a 7/16 inch shackle diameter and M3 key technology, in satin chrome. If the 3/8 inch diameter is acceptable but the exposure is the concern, the 41B itself is offered with the XSPL cut resistant shackle, or with SH, which is shrouded with a cut resistant shackle so less of the shackle stands proud of the case. Confirm the hasp opening will pass a 7/16 inch shackle before switching, since a heavier shackle is only useful if it fits the hardware already on the door or gate.
15) These padlocks live outside on gates and rooftop equipment year round. How does the BEST 41B compare with padlocks built for weather?
The BEST 41B is a stainless steel body with a 626 satin chromium plated finish, and it is offered with the WC weather cover option, which puts a cover over the keyway against rain and grit. Two alternatives are drawn specifically around exposure: the Medeco 521 G8R is a weather-tight padlock with a solid stainless steel body, supplied less the pop-out cylinder so the cylinder is ordered to your keying, and the ABUS T84MB/30 Nautic has a black sleeve over the body with a 13/64 inch shackle diameter and a 1-17/64 inch body width for marine and salt exposure at a smaller size. Decide by what else has to be true: if these padlocks must sit in a BEST master key system, the 41B with WC keeps the keying intact while covering the keyway.
16) Our facility standard is a patented key system. How does the BEST 41B compare with padlocks in restricted key platforms?
Two alternatives sit on their own key platforms. The Medeco 5260 is a 52 Series brass body padlock with a 7/16 inch shackle diameter built on M3 key technology, and the Sargent 82-856 is a KESO Series padlock, non-key retaining, with a 2 inch by 2 inch brass case and a stainless steel shackle. The BEST 41B works differently: it uses the standard removable interchangeable core, so the padlock takes whatever core your BEST system is already pinned to and can be rekeyed on the spot by swapping cores. If the site standard names a specific key platform, order the padlock built on that platform; if the site standard is the BEST core, the 41B keeps padlocks, doors and cabinets on the same master key.
17) The hasp on our chain link gate is too thick for a standard shackle. Which padlock has enough shackle to reach?
The BEST 41B is offered in four shackle lengths, 3/4 inch, 1-1/2 inch, 2 inch and 4 inch, so the 4 inch is the one to specify when the shackle has to pass a gate chain, a thick hasp or a pair of stacked lugs; the shackle itself is 3/8 inch in diameter. For reference on the shorter end of that range, the Sargent 60-858-2 is a removable core padlock with a 2 inch stainless steel shackle. Measure the total stack the shackle must clear, not just the hasp thickness, and add clearance for the chain link or lug the shackle passes through.
18) We want an audit trail of who opened the padlock. Does the BEST 41B do that?
The 41B is a mechanical padlock. Control over who opens it comes from the key system and from swapping the interchangeable core, not from a log. If you need to know which credential opened which lock and when, that is an electronic padlock, and the Medeco 54515G XT is the indoor/outdoor electronic padlock in that category, non-key retaining with a 5/16 inch shackle and supplied with a cylinder. It is a different buy: you are adopting a system, not just a lock, so it makes sense across a set of remote sites rather than for one gate.
19) Is there a padlock better suited to constant weather exposure than a plated one?
The BEST 41B answers exposure with a stainless steel body, a 626 satin chromium plated finish, and the WC weather cover option over the cylinder. Where the lock lives outdoors permanently and never gets serviced, a solid stainless body is the other approach: the Medeco 521 G8R is a weather-tight padlock with a solid stainless steel body, supplied less the pop-out cylinder so the cylinder is specified separately. Choose the 41B when the padlock has to sit on your existing BEST key system; choose a dedicated weather-tight body when the environment is the governing problem.
20) We are standardizing padlock appearance across a portfolio. Which of these carry a chrome look and which are brass?
The BEST 41B lock body is 626 satin chromium plated over stainless steel, and the Medeco 5260 is a brass body padlock finished in satin chrome, so those two read as the same bright satin silver on a door or gate. On the brass side, the Sargent 758 and the Sargent 858 are both specified in a US4 satin brass finish, the Sargent 82-856 has a brass case, and the Schlage KS23D/KS23F is a brass padlock. If the portfolio standard is satin chrome hardware, the 41B holds that finish and, being built on the standard removable interchangeable core, also lets one master key system run across the properties.
How fast can I get the BEST 41B72T 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 BEST 41B72T come with a warranty?
Absolutely. The BEST 41B72T 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 BEST 41B72T?
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 BEST 41B72T from ZenSupply?
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