Medeco 5262 52 Series Brass Bo...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$202.50
$198.78
Medeco Medeco 52 Series Brass Body Padlocks, 5/16" Shackle Diameter, M3 Key Technology MED-5262

Medeco 5262 52 Series Brass Body Padlock with 5/16" Shackle Diameter and M3 Key Technology, Satin Chrome

(No reviews yet) Write a Review

Model: 526201P
$202.50
$198.78
Selected FREE KEYING Options is

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

$202.50
$198.78
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Medeco 5262 Brass Body Padlock with 5/16" Shackle Diameter and M3 Key Technology

The Medeco 52 Series Brass Body Padlock is engineered for demanding commercial security applications, featuring a 5/16" shackle diameter and Medeco M3 key technology for superior access control. The padlock case is constructed of brass with a Satin Chrome (26) finish, and shackle options include stainless steel for corrosion protection or hardened boron alloy steel for resistance against cutting, sawing, and prying. Designed to be keyed with Medeco's 60 Series cam locks and switch locks, this padlock accepts UL listed cylinders and cores that are virtually pickproof and drillproof, making it ideal for indoor and outdoor applications ranging from industrial safekeeping to perimeter gates and cargo vehicles.

Key Features

  • 5/16" Shackle Diameter: Available in stainless steel for corrosion protection or hardened boron alloy steel for strong resistance against cutting, sawing, and prying attacks.
  • Brass Padlock Body: Durable brass case construction with Satin Chrome (26) finish provides long-lasting performance in both indoor and outdoor environments.
  • Patented Key Control: M3 key technology protects against unauthorized key duplication, requiring a special key cutting machine and access to Medeco-specific blanks available in a variety of restriction levels.
  • UL Listed Cylinders & Cores: Accepts cylinders and cores that are UL listed and virtually pickproof and drillproof, with mechanical cylinders providing resistance to physical attacks.
  • Picking and Bumping Protection: M4 cylinders utilize cylinder side pins, a lift pin, and a movable key element to engage a sidebar, preventing key rotation until elements are correctly rotated and aligned — protecting against bumping, picking, and other attacks.
  • Toe and Heel Deadbolt Locking Action: Dual-point locking mechanism provides enhanced security and resistance to forced entry.
  • 60 Series Compatibility: Designed to be keyed with Medeco's 60 Series cam locks and switch locks for integrated master key system flexibility.
  • Master Keying Capability: Can be master keyed into a system containing Medeco M4, X4, and M3 CLIQ cylinders to support complex keying hierarchies.
  • Flexible Keying Options: Available keyed differently, keyed alike, or master keyed; offered in non-key retained or key retained functions to suit specific operational needs.
  • Optional Dust Cover: Protects the keyway of the cylinder from weather conditions, extending service life in outdoor or harsh environments.
  • Chain and Clevis Attachment: Carbon steel chain and clevis with zinc plating, designed for more permanent attachment configurations.

Certifications & Compliance

  • UL Listed Cylinders and Cores (UL 437)
  • Virtually Pickproof and Drillproof Construction
  • Commercial Grade Application

Technical Specifications

  • Series: Medeco 52 Series Brass Body Padlock
  • Cylinder Technology: Medeco M3
  • Shackle Diameter: 5/16"
  • Body Material: Solid brass, satin chrome (26) plated finish
  • Keying: Keyed alike, keyed different, or master keyed; can be keyed into 60 Series cam/switch lock systems
  • Certification: UL 437 Listed
  • Warranty: 2-year manufacturer's warranty

Typical Applications

  • Industrial Safekeeping and Storage Facilities
  • Perimeter Gates and Fencing
  • Cargo Vehicles and Transportation Security
  • Vending Machines and Coin-Operated Equipment
  • Gun Cabinets and Secure Storage
  • Commercial Office and Retail Establishments
  • Government and Municipal Facilities

Why Medeco?

Medeco 52 Series padlocks deliver professional-grade security through a combination of brass body construction, UL 437 listed cylinders, and patented M3 key control technology that resists unauthorized duplication, picking, bumping, and drilling. The hardened boron alloy steel shackle and toe-and-heel deadbolt locking action provide multi-point resistance to physical attack, making this padlock a trusted choice for commercial and industrial environments where dependable, high-security performance is essential.

Manufacturer Resources

Medeco Product Catalog

Product Specs

Product Group:
Other / Miscellaneous Hardware
Series:
52 Series
Product Subgroup:
Padlocks
Product Type:
Padlocks
Subcategory:
Padlocks
Commercial/Residential:
Commercial
Product Lockbody Color:
26 - Satin Chrome
Product Category:
Other / Miscellaneous Hardware
Product Substrate:
Brass
Department:
Door Hardware

Medeco 526201P – Frequently Asked Questions

1) Should I get the boron alloy or the stainless steel shackle on a Medeco 52 Series padlock?
Pick by the threat. Hardened boron alloy steel is the choice where someone can get bolt cutters, a saw or a pry bar on the lock: yard gates, cargo doors, exterior storage. Stainless steel is the corrosion choice, for coastal air, washdown areas, or anything that sits in weather all year. The case is the same either way, solid brass with a satin chrome (26) plated finish, so the body handles outdoor exposure regardless of which shackle you order. If the lock is both outdoors and an attack target, run boron alloy and add the optional dust cover to keep water out of the keyway.
2) Can a Medeco 5262 padlock be keyed into the Medeco system already running in my building?
Yes, and that is what the 52 Series is built for. The 5262 keys with Medeco 60 Series cam locks and switch locks, so the padlocks on your gates and the cam locks in your cabinets and enclosures operate off the same key. It also master keys into a system containing Medeco M4, X4 and M3 CLIQ cylinders, so it drops into an existing hierarchy rather than forcing a second key ring. The cylinder in this one is M3. Give your locksmith or your Medeco dealer the system code when you order.
3) What is the difference between the P pinned and S sub-assembled options on the Medeco 5262?
That option decides who cuts the keying. P, pinned, means the padlock arrives with the cylinder already pinned and keyed. S, sub-assembled, means it ships with the cylinder not pinned, so a locksmith with Medeco pinning stock keys it on the bench to your existing system. If you are a property manager or facility buyer without a locksmith on call, order pinned and specify keyed alike or keyed different. If you are a locksmith maintaining a Medeco master key system, sub-assembled is what you want, because you control the pinning and can bring the lock into the hierarchy yourself.
4) What other brass body padlock takes a 5/16 inch shackle like the Medeco 5262?
The Schlage KS23D/KS23F is a brass padlock with a 5/16 inch diameter shackle, so it drops into a hasp or chain prepped for the same shackle size. The Medeco 5262 is a brass bodied 52 Series padlock in a satin chrome 26 finish, ordered with either a stainless steel shackle for corrosion protection or a hardened boron alloy steel shackle for cut and pry resistance, and it runs M3 key technology with UL 437 listed cylinders and cores. The Schlage unit is part of the 20 Series. If the deciding factor is the restricted keyway and patented key control, that is the Medeco side of the comparison; if it is simply a brass padlock at the same shackle diameter, both fit the same opening.
5) I need a padlock with a removable core so my locksmith can rekey it without pulling the lock. What are my options?
The Sargent 60-858-2 is a removable core padlock with a 2 inch stainless steel shackle, built for exactly that workflow. The Medeco 5262 accepts UL listed cylinders and cores and can be master keyed into a system containing Medeco M4, X4 and M3 CLIQ cylinders, and it is designed to be keyed with Medeco 60 Series cam locks and switch locks, so a padlock on a gate can share a hierarchy with the cam locks on cabinets and enclosures. It is ordered pinned or sub-assembled. The Sargent 60-858-2 is the choice when the facility already standardizes on Sargent removable cores; the Medeco 5262 is the choice when the padlocks need to fall under a Medeco M3 keying system.
6) Is there a difference between a key retaining and a non key retaining padlock, and which model do I order for each?
A key retaining padlock holds the key captive while the shackle is open, so the lock cannot be left hanging unlocked with the key walked away; a non key retaining padlock releases the key in either position. The Sargent 758 is a key retaining standard padlock in a US4 satin brass finish. The Sargent 858 is non key retaining with a stainless steel shackle, also US4 satin brass, and the Sargent 82-856 is non key retaining with a 2 inch by 2 inch brass case and a stainless steel shackle. The Medeco 5262 is offered in both non key retained and key retained functions, so the same brass body and M3 keying covers either operating requirement. Key retaining is the usual call for lockout and gate applications where the lock must stay with the opening; non key retaining suits locks that get removed and carried.
7) My hasps are drilled for the padlocks we already run. Will a Medeco 5262 go through them?
Check the shackle diameter before ordering, because the padlocks in this class are not on a common size. The Medeco 5262 uses a 5/16 inch shackle. The ABUS 72/30 uses a 3/16 inch shackle, the ABUS 74/40 and ABUS 76/40 both use a 1/4 inch shackle, and the ABUS T84MB/30 uses a 13/64 inch shackle. A hasp or chain link sized for any of those thinner shackles will not pass a 5/16 inch shackle without redrilling or a different hasp. Going the other direction, a hasp already prepped for a 5/16 inch shackle also accepts the Schlage KS23D/KS23F, which is a brass padlock at the same 5/16 inch shackle diameter.
8) Can I get a set of Medeco 52 Series padlocks that all open with one key?
Keyed alike is one of the ordering choices on the 5262, so a run of them can operate off a single key, which is how most people buy them for a fleet of gates, meter enclosures or storage cages. Keyed different is the other choice, one unique key per lock, for tenant storage or anywhere a lock has to be individually controlled. Master keying is available on top of either, and the 5262 will master key into a Medeco system that already includes M4, X4 and M3 CLIQ cylinders, so the maintenance key opens everything while each lock keeps its own change key.
9) Can someone copy a Medeco M3 padlock key at a hardware store?
No. The 5262 uses Medeco M3 key technology, which is patented key control. Cutting a duplicate takes a special key cutting machine and access to Medeco blanks, and those blanks come in a range of restriction levels, so you decide how tightly duplication is held. That is the reason to buy this rather than a standard brass padlock: it is not the shackle that gets defeated on most jobs, it is a key that walked out with a former tenant or a contractor and got copied at a kiosk.
10) Is the Medeco 5262 padlock UL listed for pick and drill resistance?
The cylinders and cores it takes are UL 437 listed, which is the standard covering key-in cylinder resistance to picking and drilling. Medeco describes them as virtually pickproof and drillproof. For an MRO or government spec that calls out UL 437 on high security cylinders, this is the padlock line that meets it, and because it keys with Medeco 60 Series cam locks and switch locks you can hold the same cylinder standard across padlocks and cabinet locks in one facility. It is a commercial grade product, not a residential one.
11) Does the key come out of a Medeco 52 Series padlock while it is unlocked?
Depends which function you order. The 5262 is offered non-key retained, where the key pulls out with the shackle open, and key retained, where the key stays captive until the lock is closed and locked again. Key retained is what you want on gates and equipment that people forget, because the lock cannot be left hanging open while the key walks away. Non-key retained suits an operator who has to open several locks in a round. Sargent builds the same split if you need to match a different brand across a site: the 758 is the key retaining padlock and the 858 is the non-key retaining one with a stainless steel shackle.
12) How does the Medeco 5262 compare to the Schlage KS23 brass padlock?
Physically they are close. The Schlage KS23D/KS23F is also a brass bodied padlock with a 5/16 inch shackle, from Schlage's 20 Series. The split is the key system. The 5262 runs Medeco M3 patented key control with UL 437 listed cylinders and cores, and it keys with Medeco 60 Series cam locks and switch locks, so it fits a building already standardized on Medeco. The Schlage suits a site running Schlage keyways. Buy by which key system your facility already carries, because that is what determines whether your existing key opens it.
13) Will a Medeco 52 Series brass padlock hold up outdoors on a perimeter gate all year?
It is built for indoor and outdoor service, and perimeter gates are one of the applications Medeco names for the 52 Series along with cargo vehicles and industrial storage. Body is solid brass with satin chrome (26) plating, which is the part that takes the weather. For a gate that never comes inside, order the stainless steel shackle and add the dust cover, which closes off the cylinder keyway against rain, grit and freezing. If the lock is meant to stay on the gate permanently, the zinc plated carbon steel chain and clevis is the attachment made for that.
14) Can I use the Medeco 5262 for lockout tagout on our maintenance program?
Lockout tagout calls for a purpose built safety padlock. The ABUS 72/30 is an anodized aluminum safety padlock with a 1-1/4 inch body width and a 3/16 inch shackle diameter, and the ABUS 74/40 is an insulated safety padlock with a six pin cylinder, a 1/4 inch shackle diameter and a 1-1/2 inch body width, with the insulated body being the point for electrical energy isolation work. The Medeco 5262 is a commercial brass body padlock with a 5/16 inch shackle, M3 patented key control and UL 437 listed cylinders, ordered keyed different, keyed alike or master keyed, which suits industrial safekeeping, perimeter gates and cargo security rather than personal energy isolation. Facilities commonly carry both: safety padlocks for the LOTO program and a keyed system padlock for the assets.
15) What padlock holds up in a coastal or wash down location?
The ABUS T84MB/30 Nautic is built for marine exposure with a black sleeve over the body, a 13/64 inch shackle diameter and a 1-17/64 inch body width. The Medeco 5262 handles outdoor exposure a different way: the brass body is offered with a stainless steel shackle specifically for corrosion protection, and an optional dust cover shields the keyway from weather, with the boron alloy steel shackle being the alternative when cut and pry resistance matters more than corrosion. The T84MB/30 is the small sleeved lock for boats, marina lockers and salt spray; the 5262 is the brass bodied keyed system lock for gates and enclosures that also sit outside.
16) We are standardized on Sargent high security keys. What is the padlock on that side instead of a Medeco 5262?
The Sargent 82-856 is the KESO Series padlock, non key retaining, with a 2 inch by 2 inch brass case and a stainless steel shackle, which is what keeps the padlocks inside a Sargent high security keying program. The Medeco 5262 is the equivalent decision on the Medeco side: brass body, M3 patented key control that requires Medeco specific blanks and a special key cutting machine, UL 437 listed cylinders and cores, and master keying into a system containing M4, X4 and M3 CLIQ cylinders. Both are brass cased padlocks with a restricted key; the split is which keyway your existing system already runs, because the padlock has to accept the key your staff already carries.
17) How does the Medeco 5262 resist someone attacking the shackle?
Locking is toe and heel, a deadbolt engaging both legs of the shackle instead of a single ball bearing catching one side, so an attacker has two points to defeat rather than one. Pair that with the hardened boron alloy steel shackle where cutting, sawing or prying is the realistic threat. The cylinder side is separate: the UL 437 listed cylinders and cores cover picking and drilling. Body is solid brass, satin chrome plated.
18) I want a padlock I can rekey by swapping the core. Is the Medeco 5262 the right one?
The 5262 is keyed through its Medeco M3 cylinder and ordered either factory pinned or sub-assembled for a locksmith to pin, so rekeying it means pinning work rather than pulling a core with a control key. If your standard is interchangeable core so maintenance can swap keying in the field without a pinning kit, look at the Sargent 60-858-2, a removable core padlock with a 2 inch stainless steel shackle. Where the priority is patented key control and UL 437 cylinders across a Medeco keyed system, stay with the 5262.
19) Can I use a safety padlock like the ABUS 72/30 in place of a Medeco 52 Series security padlock?
No, they are built for different jobs. The ABUS 72/30 is an anodized aluminum safety padlock with a 3/16 inch shackle and the 76/40 is a plastic covered aluminum core lock with a 1/4 inch shackle. Safety padlocks are made light and non-conductive so a worker can carry a set on a lockout/tagout round, and they identify who applied the lock. They are not sized to stop an attack. The Medeco 5262 is the security lock, a brass body with a 5/16 inch hardened boron alloy or stainless shackle and a UL 437 listed cylinder. Buy the safety lock for energy isolation and the 5262 for gates, cages and cargo.
20) What should I put on a storage cage or locker where I do not need a restricted keyway?
The ABUS 76/40 is a plastic covered aluminum core padlock with a 1/4 inch shackle diameter and a 1-37/64 inch width, and the plastic cover keeps the body from marring a painted door or a finished locker face. The ABUS 72/30 is an anodized aluminum safety padlock at a 1-1/4 inch body width with a 3/16 inch shackle. Both are lighter bodied locks for openings where the key does not need duplication control. The Medeco 5262 is the specification when the keys have to be protected from unauthorized duplication through M3 key control and the padlock has to sit in a master keyed system alongside 60 Series cam locks and switch locks.
How fast can I get the Medeco 526201P 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 Medeco 526201P come with a warranty?
Absolutely. The Medeco 526201P 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 Medeco 526201P?
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 Medeco 526201P from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!